Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
  Input: ADP5589 - new driver for I2C Keypad Decoder and I/O Expander
  Input: tsc2007 - add X, Y and Z fuzz factors to platform data
  Input: tsc2007 - add poll_period parameter to platform data
  Input: tsc2007 - add poll_delay parameter to platform data
  Input: tsc2007 - add max_rt parameter to platform data
  Input: tsc2007 - debounce pressure measurement
  Input: ad714x - fix captouch wheel option algorithm
  Input: ad714x - allow platform code to specify irqflags
  Input: ad714x - fix threshold and completion interrupt masks
  Input: ad714x - fix up input configuration
  Input: elantech - remove support for proprietary X driver
  Input: elantech - report multitouch with proper ABS_MT messages
  Input: elantech - export pressure and width when supported
  Input: elantech - describe further the protocol
  Input: atmel_tsadcc - correct call to input_free_device
  Input: add driver FSL MPR121 capacitive touch sensor
  Input: remove useless synchronize_rcu() calls
  Input: ads7846 - fix gpio_pendown configuration
  Input: ads7846 - add possibility to use external vref on ads7846
  Input: rotary-encoder - add support for half-period encoders
  ...

28 files changed, 1791 insertions, 328 deletions

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 88d8e4cb419..be0921ef6b5 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -41,6 +41,7 @@ struct evdev {
 struct evdev_client {
 	unsigned int head;
 	unsigned int tail;
+	unsigned int packet_head; /* [future] position of the first element of next packet */
 	spinlock_t buffer_lock; /* protects access to buffer, head and tail */
 	struct fasync_struct *fasync;
 	struct evdev *evdev;
@@ -72,12 +73,16 @@ static void evdev_pass_event(struct evdev_client *client,
 		client->buffer[client->tail].type = EV_SYN;
 		client->buffer[client->tail].code = SYN_DROPPED;
 		client->buffer[client->tail].value = 0;
-	}
 
-	spin_unlock(&client->buffer_lock);
+		client->packet_head = client->tail;
+	}
 
-	if (event->type == EV_SYN)
+	if (event->type == EV_SYN && event->code == SYN_REPORT) {
+		client->packet_head = client->head;
 		kill_fasync(&client->fasync, SIGIO, POLL_IN);
+	}
+
+	spin_unlock(&client->buffer_lock);
 }
 
 /*
@@ -159,7 +164,6 @@ static int evdev_grab(struct evdev *evdev, struct evdev_client *client)
 		return error;
 
 	rcu_assign_pointer(evdev->grab, client);
-	synchronize_rcu();
 
 	return 0;
 }
@@ -182,7 +186,6 @@ static void evdev_attach_client(struct evdev *evdev,
 	spin_lock(&evdev->client_lock);
 	list_add_tail_rcu(&client->node, &evdev->client_list);
 	spin_unlock(&evdev->client_lock);
-	synchronize_rcu();
 }
 
 static void evdev_detach_client(struct evdev *evdev,
@@ -387,12 +390,12 @@ static ssize_t evdev_read(struct file *file, char __user *buffer,
 	if (count < input_event_size())
 		return -EINVAL;
 
-	if (client->head == client->tail && evdev->exist &&
+	if (client->packet_head == client->tail && evdev->exist &&
 	    (file->f_flags & O_NONBLOCK))
 		return -EAGAIN;
 
 	retval = wait_event_interruptible(evdev->wait,
-		client->head != client->tail || !evdev->exist);
+		client->packet_head != client->tail || !evdev->exist);
 	if (retval)
 		return retval;
 
@@ -421,7 +424,7 @@ static unsigned int evdev_poll(struct file *file, poll_table *wait)
 	poll_wait(file, &evdev->wait, wait);
 
 	mask = evdev->exist ? POLLOUT | POLLWRNORM : POLLHUP | POLLERR;
-	if (client->head != client->tail)
+	if (client->packet_head != client->tail)
 		mask |= POLLIN | POLLRDNORM;
 
 	return mask;
diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c
index 3037842a60d..b1aabde8752 100644
--- a/drivers/input/input-polldev.c
+++ b/drivers/input/input-polldev.c
@@ -13,6 +13,7 @@
 #include <linux/jiffies.h>
 #include <linux/slab.h>
 #include <linux/mutex.h>
+#include <linux/workqueue.h>
 #include <linux/input-polldev.h>
 
 MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
@@ -20,44 +21,6 @@ MODULE_DESCRIPTION("Generic implementation of a polled input device");
 MODULE_LICENSE("GPL v2");
 MODULE_VERSION("0.1");
 
-static DEFINE_MUTEX(polldev_mutex);
-static int polldev_users;
-static struct workqueue_struct *polldev_wq;
-
-static int input_polldev_start_workqueue(void)
-{
-	int retval;
-
-	retval = mutex_lock_interruptible(&polldev_mutex);
-	if (retval)
-		return retval;
-
-	if (!polldev_users) {
-		polldev_wq = create_singlethread_workqueue("ipolldevd");
-		if (!polldev_wq) {
-			pr_err("failed to create ipolldevd workqueue\n");
-			retval = -ENOMEM;
-			goto out;
-		}
-	}
-
-	polldev_users++;
-
- out:
-	mutex_unlock(&polldev_mutex);
-	return retval;
-}
-
-static void input_polldev_stop_workqueue(void)
-{
-	mutex_lock(&polldev_mutex);
-
-	if (!--polldev_users)
-		destroy_workqueue(polldev_wq);
-
-	mutex_unlock(&polldev_mutex);
-}
-
 static void input_polldev_queue_work(struct input_polled_dev *dev)
 {
 	unsigned long delay;
@@ -66,7 +29,7 @@ static void input_polldev_queue_work(struct input_polled_dev *dev)
 	if (delay >= HZ)
 		delay = round_jiffies_relative(delay);
 
-	queue_delayed_work(polldev_wq, &dev->work, delay);
+	queue_delayed_work(system_freezable_wq, &dev->work, delay);
 }
 
 static void input_polled_device_work(struct work_struct *work)
@@ -81,18 +44,13 @@ static void input_polled_device_work(struct work_struct *work)
 static int input_open_polled_device(struct input_dev *input)
 {
 	struct input_polled_dev *dev = input_get_drvdata(input);
-	int error;
-
-	error = input_polldev_start_workqueue();
-	if (error)
-		return error;
 
 	if (dev->open)
 		dev->open(dev);
 
 	/* Only start polling if polling is enabled */
 	if (dev->poll_interval > 0)
-		queue_delayed_work(polldev_wq, &dev->work, 0);
+		queue_delayed_work(system_freezable_wq, &dev->work, 0);
 
 	return 0;
 }
@@ -102,13 +60,6 @@ static void input_close_polled_device(struct input_dev *input)
 	struct input_polled_dev *dev = input_get_drvdata(input);
 
 	cancel_delayed_work_sync(&dev->work);
-	/*
-	 * Clean up work struct to remove references to the workqueue.
-	 * It may be destroyed by the next call. This causes problems
-	 * at next device open-close in case of poll_interval == 0.
-	 */
-	INIT_DELAYED_WORK(&dev->work, dev->work.work.func);
-	input_polldev_stop_workqueue();
 
 	if (dev->close)
 		dev->close(dev);
@@ -295,4 +246,3 @@ void input_unregister_polled_device(struct input_polled_dev *dev)
 	input_unregister_device(dev->input);
 }
 EXPORT_SYMBOL(input_unregister_polled_device);
-
diff --git a/drivers/input/input.c b/drivers/input/input.c
index ebbceedc92f..75e11c7b70f 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -451,7 +451,6 @@ int input_grab_device(struct input_handle *handle)
 	}
 
 	rcu_assign_pointer(dev->grab, handle);
-	synchronize_rcu();
 
  out:
 	mutex_unlock(&dev->mutex);
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index 5688b5c88f2..c24ec2d5f92 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -180,7 +180,6 @@ static void joydev_attach_client(struct joydev *joydev,
 	spin_lock(&joydev->client_lock);
 	list_add_tail_rcu(&client->node, &joydev->client_list);
 	spin_unlock(&joydev->client_lock);
-	synchronize_rcu();
 }
 
 static void joydev_detach_client(struct joydev *joydev,
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index b16bed038f7..69badb4e06a 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -32,6 +32,16 @@ config KEYBOARD_ADP5588
 	  To compile this driver as a module, choose M here: the
 	  module will be called adp5588-keys.
 
+config KEYBOARD_ADP5589
+	tristate "ADP5589 I2C QWERTY Keypad and IO Expander"
+	depends on I2C
+	help
+	  Say Y here if you want to use a ADP5589 attached to your
+	  system I2C bus.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called adp5589-keys.
+
 config KEYBOARD_AMIGA
 	tristate "Amiga keyboard"
 	depends on AMIGA
@@ -325,6 +335,18 @@ config KEYBOARD_MCS
 	  To compile this driver as a module, choose M here: the
 	  module will be called mcs_touchkey.
 
+config KEYBOARD_MPR121
+	tristate "Freescale MPR121 Touchkey"
+	depends on I2C
+	help
+	  Say Y here if you have Freescale MPR121 touchkey controller
+	  chip in your system.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called mpr121_touchkey.
+
 config KEYBOARD_IMX
 	tristate "IMX keypad support"
 	depends on ARCH_MXC
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 878e6c20deb..c49cf8e04cd 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -6,6 +6,7 @@
 
 obj-$(CONFIG_KEYBOARD_ADP5520)		+= adp5520-keys.o
 obj-$(CONFIG_KEYBOARD_ADP5588)		+= adp5588-keys.o
+obj-$(CONFIG_KEYBOARD_ADP5589)		+= adp5589-keys.o
 obj-$(CONFIG_KEYBOARD_AMIGA)		+= amikbd.o
 obj-$(CONFIG_KEYBOARD_ATARI)		+= atakbd.o
 obj-$(CONFIG_KEYBOARD_ATKBD)		+= atkbd.o
@@ -27,6 +28,7 @@ obj-$(CONFIG_KEYBOARD_MAPLE)		+= maple_keyb.o
 obj-$(CONFIG_KEYBOARD_MATRIX)		+= matrix_keypad.o
 obj-$(CONFIG_KEYBOARD_MAX7359)		+= max7359_keypad.o
 obj-$(CONFIG_KEYBOARD_MCS)		+= mcs_touchkey.o
+obj-$(CONFIG_KEYBOARD_MPR121)		+= mpr121_touchkey.o
 obj-$(CONFIG_KEYBOARD_NEWTON)		+= newtonkbd.o
 obj-$(CONFIG_KEYBOARD_NOMADIK)		+= nomadik-ske-keypad.o
 obj-$(CONFIG_KEYBOARD_OMAP)		+= omap-keypad.o
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
new file mode 100644
index 00000000000..631598663aa
--- /dev/null
+++ b/drivers/input/keyboard/adp5589-keys.c
@@ -0,0 +1,771 @@
+/*
+ * Description:  keypad driver for ADP5589
+ *		 I2C QWERTY Keypad and IO Expander
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (C) 2010-2011 Analog Devices Inc.
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/workqueue.h>
+#include <linux/errno.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+
+#include <linux/input/adp5589.h>
+
+/* GENERAL_CFG Register */
+#define OSC_EN		(1 << 7)
+#define CORE_CLK(x)	(((x) & 0x3) << 5)
+#define LCK_TRK_LOGIC	(1 << 4)
+#define LCK_TRK_GPI	(1 << 3)
+#define INT_CFG		(1 << 1)
+#define RST_CFG		(1 << 0)
+
+/* INT_EN Register */
+#define LOGIC2_IEN	(1 << 5)
+#define LOGIC1_IEN	(1 << 4)
+#define LOCK_IEN	(1 << 3)
+#define OVRFLOW_IEN	(1 << 2)
+#define GPI_IEN		(1 << 1)
+#define EVENT_IEN	(1 << 0)
+
+/* Interrupt Status Register */
+#define LOGIC2_INT	(1 << 5)
+#define LOGIC1_INT	(1 << 4)
+#define LOCK_INT	(1 << 3)
+#define OVRFLOW_INT	(1 << 2)
+#define GPI_INT		(1 << 1)
+#define EVENT_INT	(1 << 0)
+
+/* STATUS Register */
+
+#define LOGIC2_STAT	(1 << 7)
+#define LOGIC1_STAT	(1 << 6)
+#define LOCK_STAT	(1 << 5)
+#define KEC		0xF
+
+/* PIN_CONFIG_D Register */
+#define C4_EXTEND_CFG	(1 << 6)	/* RESET2 */
+#define R4_EXTEND_CFG	(1 << 5)	/* RESET1 */
+
+/* LOCK_CFG */
+#define LOCK_EN		(1 << 0)
+
+#define PTIME_MASK	0x3
+#define LTIME_MASK	0x3
+
+/* Key Event Register xy */
+#define KEY_EV_PRESSED		(1 << 7)
+#define KEY_EV_MASK		(0x7F)
+
+#define KEYP_MAX_EVENT		16
+
+#define MAXGPIO			19
+#define ADP_BANK(offs)		((offs) >> 3)
+#define ADP_BIT(offs)		(1u << ((offs) & 0x7))
+
+struct adp5589_kpad {
+	struct i2c_client *client;
+	struct input_dev *input;
+	unsigned short keycode[ADP5589_KEYMAPSIZE];
+	const struct adp5589_gpi_map *gpimap;
+	unsigned short gpimapsize;
+	unsigned extend_cfg;
+#ifdef CONFIG_GPIOLIB
+	unsigned char gpiomap[MAXGPIO];
+	bool export_gpio;
+	struct gpio_chip gc;
+	struct mutex gpio_lock;	/* Protect cached dir, dat_out */
+	u8 dat_out[3];
+	u8 dir[3];
+#endif
+};
+
+static int adp5589_read(struct i2c_client *client, u8 reg)
+{
+	int ret = i2c_smbus_read_byte_data(client, reg);
+
+	if (ret < 0)
+		dev_err(&client->dev, "Read Error\n");
+
+	return ret;
+}
+
+static int adp5589_write(struct i2c_client *client, u8 reg, u8 val)
+{
+	return i2c_smbus_write_byte_data(client, reg, val);
+}
+
+#ifdef CONFIG_GPIOLIB
+static int adp5589_gpio_get_value(struct gpio_chip *chip, unsigned off)
+{
+	struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
+	unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
+	unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
+
+	return !!(adp5589_read(kpad->client, ADP5589_GPI_STATUS_A + bank) &
+		  bit);
+}
+
+static void adp5589_gpio_set_value(struct gpio_chip *chip,
+				   unsigned off, int val)
+{
+	struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
+	unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
+	unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
+
+	mutex_lock(&kpad->gpio_lock);
+
+	if (val)
+		kpad->dat_out[bank] |= bit;
+	else
+		kpad->dat_out[bank] &= ~bit;
+
+	adp5589_write(kpad->client, ADP5589_GPO_DATA_OUT_A + bank,
+		      kpad->dat_out[bank]);
+
+	mutex_unlock(&kpad->gpio_lock);
+}
+
+static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off)
+{
+	struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
+	unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
+	unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
+	int ret;
+
+	mutex_lock(&kpad->gpio_lock);
+
+	kpad->dir[bank] &= ~bit;
+	ret = adp5589_write(kpad->client, ADP5589_GPIO_DIRECTION_A + bank,
+			    kpad->dir[bank]);
+
+	mutex_unlock(&kpad->gpio_lock);
+
+	return ret;
+}
+
+static int adp5589_gpio_direction_output(struct gpio_chip *chip,
+					 unsigned off, int val)
+{
+	struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
+	unsigned int bank = ADP_BANK(kpad->gpiomap[off]);
+	unsigned int bit = ADP_BIT(kpad->gpiomap[off]);
+	int ret;
+
+	mutex_lock(&kpad->gpio_lock);
+
+	kpad->dir[bank] |= bit;
+
+	if (val)
+		kpad->dat_out[bank] |= bit;
+	else
+		kpad->dat_out[bank] &= ~bit;
+
+	ret = adp5589_write(kpad->client, ADP5589_GPO_DATA_OUT_A + bank,
+			    kpad->dat_out[bank]);
+	ret |= adp5589_write(kpad->client, ADP5589_GPIO_DIRECTION_A + bank,
+			     kpad->dir[bank]);
+
+	mutex_unlock(&kpad->gpio_lock);
+
+	return ret;
+}
+
+static int __devinit adp5589_build_gpiomap(struct adp5589_kpad *kpad,
+				const struct adp5589_kpad_platform_data *pdata)
+{
+	bool pin_used[MAXGPIO];
+	int n_unused = 0;
+	int i;
+
+	memset(pin_used, false, sizeof(pin_used));
+
+	for (i = 0; i < MAXGPIO; i++)
+		if (pdata->keypad_en_mask & (1 << i))
+			pin_used[i] = true;
+
+	for (i = 0; i < kpad->gpimapsize; i++)
+		pin_used[kpad->gpimap[i].pin - ADP5589_GPI_PIN_BASE] = true;
+
+	if (kpad->extend_cfg & R4_EXTEND_CFG)
+		pin_used[4] = true;
+
+	if (kpad->extend_cfg & C4_EXTEND_CFG)
+		pin_used[12] = true;
+
+	for (i = 0; i < MAXGPIO; i++)
+		if (!pin_used[i])
+			kpad->gpiomap[n_unused++] = i;
+
+	return n_unused;
+}
+
+static int __devinit adp5589_gpio_add(struct adp5589_kpad *kpad)
+{
+	struct device *dev = &kpad->client->dev;
+	const struct adp5589_kpad_platform_data *pdata = dev->platform_data;
+	const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
+	int i, error;
+
+	if (!gpio_data)
+		return 0;
+
+	kpad->gc.ngpio = adp5589_build_gpiomap(kpad, pdata);
+	if (kpad->gc.ngpio == 0) {
+		dev_info(dev, "No unused gpios left to export\n");
+		return 0;
+	}
+
+	kpad->export_gpio = true;
+
+	kpad->gc.direction_input = adp5589_gpio_direction_input;
+	kpad->gc.direction_output = adp5589_gpio_direction_output;
+	kpad->gc.get = adp5589_gpio_get_value;
+	kpad->gc.set = adp5589_gpio_set_value;
+	kpad->gc.can_sleep = 1;
+
+	kpad->gc.base = gpio_data->gpio_start;
+	kpad->gc.label = kpad->client->name;
+	kpad->gc.owner = THIS_MODULE;
+
+	mutex_init(&kpad->gpio_lock);
+
+	error = gpiochip_add(&kpad->gc);
+	if (error) {
+		dev_err(dev, "gpiochip_add failed, err: %d\n", error);
+		return error;
+	}
+
+	for (i = 0; i <= ADP_BANK(MAXGPIO); i++) {
+		kpad->dat_out[i] = adp5589_read(kpad->client,
+						ADP5589_GPO_DATA_OUT_A + i);
+		kpad->dir[i] = adp5589_read(kpad->client,
+					    ADP5589_GPIO_DIRECTION_A + i);
+	}
+
+	if (gpio_data->setup) {
+		error = gpio_data->setup(kpad->client,
+					 kpad->gc.base, kpad->gc.ngpio,
+					 gpio_data->context);
+		if (error)
+			dev_warn(dev, "setup failed, %d\n", error);
+	}
+
+	return 0;
+}
+
+static void __devexit adp5589_gpio_remove(struct adp5589_kpad *kpad)
+{
+	struct device *dev = &kpad->client->dev;
+	const struct adp5589_kpad_platform_data *pdata = dev->platform_data;
+	const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
+	int error;
+
+	if (!kpad->export_gpio)
+		return;
+
+	if (gpio_data->teardown) {
+		error = gpio_data->teardown(kpad->client,
+					    kpad->gc.base, kpad->gc.ngpio,
+					    gpio_data->context);
+		if (error)
+			dev_warn(dev, "teardown failed %d\n", error);
+	}
+
+	error = gpiochip_remove(&kpad->gc);
+	if (error)
+		dev_warn(dev, "gpiochip_remove failed %d\n", error);
+}
+#else
+static inline int adp5589_gpio_add(struct adp5589_kpad *kpad)
+{
+	return 0;
+}
+
+static inline void adp5589_gpio_remove(struct adp5589_kpad *kpad)
+{
+}
+#endif
+
+static void adp5589_report_switches(struct adp5589_kpad *kpad,
+				    int key, int key_val)
+{
+	int i;
+
+	for (i = 0; i < kpad->gpimapsize; i++) {
+		if (key_val == kpad->gpimap[i].pin) {
+			input_report_switch(kpad->input,
+					    kpad->gpimap[i].sw_evt,
+					    key & KEY_EV_PRESSED);
+			break;
+		}
+	}
+}
+
+static void adp5589_report_events(struct adp5589_kpad *kpad, int ev_cnt)
+{
+	int i;
+
+	for (i = 0; i < ev_cnt; i++) {
+		int key = adp5589_read(kpad->client, ADP5589_FIFO_1 + i);
+		int key_val = key & KEY_EV_MASK;
+
+		if (key_val >= ADP5589_GPI_PIN_BASE &&
+		    key_val <= ADP5589_GPI_PIN_END) {
+			adp5589_report_switches(kpad, key, key_val);
+		} else {
+			input_report_key(kpad->input,
+					 kpad->keycode[key_val - 1],
+					 key & KEY_EV_PRESSED);
+		}
+	}
+}
+
+static irqreturn_t adp5589_irq(int irq, void *handle)
+{
+	struct adp5589_kpad *kpad = handle;
+	struct i2c_client *client = kpad->client;
+	int status, ev_cnt;
+
+	status = adp5589_read(client, ADP5589_INT_STATUS);
+
+	if (status & OVRFLOW_INT)	/* Unlikely and should never happen */
+		dev_err(&client->dev, "Event Overflow Error\n");
+
+	if (status & EVENT_INT) {
+		ev_cnt = adp5589_read(client, ADP5589_STATUS) & KEC;
+		if (ev_cnt) {
+			adp5589_report_events(kpad, ev_cnt);
+			input_sync(kpad->input);
+		}
+	}
+
+	adp5589_write(client, ADP5589_INT_STATUS, status);	/* Status is W1C */
+
+	return IRQ_HANDLED;
+}
+
+static int __devinit adp5589_get_evcode(struct adp5589_kpad *kpad, unsigned short key)
+{
+	int i;
+
+	for (i = 0; i < ADP5589_KEYMAPSIZE; i++)
+		if (key == kpad->keycode[i])
+			return (i + 1) | KEY_EV_PRESSED;
+
+	dev_err(&kpad->client->dev, "RESET/UNLOCK key not in keycode map\n");
+
+	return -EINVAL;
+}
+
+static int __devinit adp5589_setup(struct adp5589_kpad *kpad)
+{
+	struct i2c_client *client = kpad->client;
+	const struct adp5589_kpad_platform_data *pdata =
+	    client->dev.platform_data;
+	int i, ret;
+	unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
+	unsigned char pull_mask = 0;
+
+	ret = adp5589_write(client, ADP5589_PIN_CONFIG_A,
+			    pdata->keypad_en_mask & 0xFF);
+	ret |= adp5589_write(client, ADP5589_PIN_CONFIG_B,
+			     (pdata->keypad_en_mask >> 8) & 0xFF);
+	ret |= adp5589_write(client, ADP5589_PIN_CONFIG_C,
+			     (pdata->keypad_en_mask >> 16) & 0xFF);
+
+	if (pdata->en_keylock) {
+		ret |= adp5589_write(client, ADP5589_UNLOCK1,
+				     pdata->unlock_key1);
+		ret |= adp5589_write(client, ADP5589_UNLOCK2,
+				     pdata->unlock_key2);
+		ret |= adp5589_write(client, ADP5589_UNLOCK_TIMERS,
+				     pdata->unlock_timer & LTIME_MASK);
+		ret |= adp5589_write(client, ADP5589_LOCK_CFG, LOCK_EN);
+	}
+
+	for (i = 0; i < KEYP_MAX_EVENT; i++)
+		ret |= adp5589_read(client, ADP5589_FIFO_1 + i);
+
+	for (i = 0; i < pdata->gpimapsize; i++) {
+		unsigned short pin = pdata->gpimap[i].pin;
+
+		if (pin <= ADP5589_GPI_PIN_ROW_END) {
+			evt_mode1 |= (1 << (pin - ADP5589_GPI_PIN_ROW_BASE));
+		} else {
+			evt_mode2 |=
+			    ((1 << (pin - ADP5589_GPI_PIN_COL_BASE)) & 0xFF);
+			evt_mode3 |=
+			    ((1 << (pin - ADP5589_GPI_PIN_COL_BASE)) >> 8);
+		}
+	}
+
+	if (pdata->gpimapsize) {
+		ret |= adp5589_write(client, ADP5589_GPI_EVENT_EN_A, evt_mode1);
+		ret |= adp5589_write(client, ADP5589_GPI_EVENT_EN_B, evt_mode2);
+		ret |= adp5589_write(client, ADP5589_GPI_EVENT_EN_C, evt_mode3);
+	}
+
+	if (pdata->pull_dis_mask & pdata->pullup_en_100k &
+	    pdata->pullup_en_300k & pdata->pulldown_en_300k)
+		dev_warn(&client->dev, "Conflicting pull resistor config\n");
+
+	for (i = 0; i < MAXGPIO; i++) {
+		unsigned val = 0;
+
+		if (pdata->pullup_en_300k & (1 << i))
+			val = 0;
+		else if (pdata->pulldown_en_300k & (1 << i))
+			val = 1;
+		else if (pdata->pullup_en_100k & (1 << i))
+			val = 2;
+		else if (pdata->pull_dis_mask & (1 << i))
+			val = 3;
+
+		pull_mask |= val << (2 * (i & 0x3));
+
+		if ((i & 0x3) == 0x3 || i == MAXGPIO - 1) {
+			ret |= adp5589_write(client,
+					     ADP5589_RPULL_CONFIG_A + (i >> 2),
+					     pull_mask);
+			pull_mask = 0;
+		}
+	}
+
+	if (pdata->reset1_key_1 && pdata->reset1_key_2 && pdata->reset1_key_3) {
+		ret |= adp5589_write(client, ADP5589_RESET1_EVENT_A,
+				     adp5589_get_evcode(kpad,
+							pdata->reset1_key_1));
+		ret |= adp5589_write(client, ADP5589_RESET1_EVENT_B,
+				     adp5589_get_evcode(kpad,
+							pdata->reset1_key_2));
+		ret |= adp5589_write(client, ADP5589_RESET1_EVENT_C,
+				     adp5589_get_evcode(kpad,
+							pdata->reset1_key_3));
+		kpad->extend_cfg |= R4_EXTEND_CFG;
+	}
+
+	if (pdata->reset2_key_1 && pdata->reset2_key_2) {
+		ret |= adp5589_write(client, ADP5589_RESET2_EVENT_A,
+				     adp5589_get_evcode(kpad,
+							pdata->reset2_key_1));
+		ret |= adp5589_write(client, ADP5589_RESET2_EVENT_B,
+				     adp5589_get_evcode(kpad,
+							pdata->reset2_key_2));
+		kpad->extend_cfg |= C4_EXTEND_CFG;
+	}
+
+	if (kpad->extend_cfg) {
+		ret |= adp5589_write(client, ADP5589_RESET_CFG,
+				     pdata->reset_cfg);
+		ret |= adp5589_write(client, ADP5589_PIN_CONFIG_D,
+				     kpad->extend_cfg);
+	}
+
+	for (i = 0; i <= ADP_BANK(MAXGPIO); i++)
+		ret |= adp5589_write(client, ADP5589_DEBOUNCE_DIS_A + i,
+				     pdata->debounce_dis_mask >> (i * 8));
+
+	ret |= adp5589_write(client, ADP5589_POLL_PTIME_CFG,
+			     pdata->scan_cycle_time & PTIME_MASK);
+	ret |= adp5589_write(client, ADP5589_INT_STATUS, LOGIC2_INT |
+			     LOGIC1_INT | OVRFLOW_INT | LOCK_INT |
+			     GPI_INT | EVENT_INT);	/* Status is W1C */
+
+	ret |= adp5589_write(client, ADP5589_GENERAL_CFG,
+			     INT_CFG | OSC_EN | CORE_CLK(3));
+	ret |= adp5589_write(client, ADP5589_INT_EN,
+			     OVRFLOW_IEN | GPI_IEN | EVENT_IEN);
+
+	if (ret < 0) {
+		dev_err(&client->dev, "Write Error\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static void __devinit adp5589_report_switch_state(struct adp5589_kpad *kpad)
+{
+	int gpi_stat1 = adp5589_read(kpad->client, ADP5589_GPI_STATUS_A);
+	int gpi_stat2 = adp5589_read(kpad->client, ADP5589_GPI_STATUS_B);
+	int gpi_stat3 = adp5589_read(kpad->client, ADP5589_GPI_STATUS_C);
+	int gpi_stat_tmp, pin_loc;
+	int i;
+
+	for (i = 0; i < kpad->gpimapsize; i++) {
+		unsigned short pin = kpad->gpimap[i].pin;
+
+		if (pin <= ADP5589_GPI_PIN_ROW_END) {
+			gpi_stat_tmp = gpi_stat1;
+			pin_loc = pin - ADP5589_GPI_PIN_ROW_BASE;
+		} else if ((pin - ADP5589_GPI_PIN_COL_BASE) < 8) {
+			gpi_stat_tmp = gpi_stat2;
+			pin_loc = pin - ADP5589_GPI_PIN_COL_BASE;
+		} else {
+			gpi_stat_tmp = gpi_stat3;
+			pin_loc = pin - ADP5589_GPI_PIN_COL_BASE - 8;
+		}
+
+		if (gpi_stat_tmp < 0) {
+			dev_err(&kpad->client->dev,
+				"Can't read GPIO_DAT_STAT switch"
+				" %d default to OFF\n", pin);
+			gpi_stat_tmp = 0;
+		}
+
+		input_report_switch(kpad->input,
+				    kpad->gpimap[i].sw_evt,
+				    !(gpi_stat_tmp & (1 << pin_loc)));
+	}
+
+	input_sync(kpad->input);
+}
+
+static int __devinit adp5589_probe(struct i2c_client *client,
+				   const struct i2c_device_id *id)
+{
+	struct adp5589_kpad *kpad;
+	const struct adp5589_kpad_platform_data *pdata;
+	struct input_dev *input;
+	unsigned int revid;
+	int ret, i;
+	int error;
+
+	if (!i2c_check_functionality(client->adapter,
+				     I2C_FUNC_SMBUS_BYTE_DATA)) {
+		dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
+		return -EIO;
+	}
+
+	pdata = client->dev.platform_data;
+	if (!pdata) {
+		dev_err(&client->dev, "no platform data?\n");
+		return -EINVAL;
+	}
+
+	if (!((pdata->keypad_en_mask & 0xFF) &&
+			(pdata->keypad_en_mask >> 8)) || !pdata->keymap) {
+		dev_err(&client->dev, "no rows, cols or keymap from pdata\n");
+		return -EINVAL;
+	}
+
+	if (pdata->keymapsize != ADP5589_KEYMAPSIZE) {
+		dev_err(&client->dev, "invalid keymapsize\n");
+		return -EINVAL;
+	}
+
+	if (!pdata->gpimap && pdata->gpimapsize) {
+		dev_err(&client->dev, "invalid gpimap from pdata\n");
+		return -EINVAL;
+	}
+
+	if (pdata->gpimapsize > ADP5589_GPIMAPSIZE_MAX) {
+		dev_err(&client->dev, "invalid gpimapsize\n");
+		return -EINVAL;
+	}
+
+	for (i = 0; i < pdata->gpimapsize; i++) {
+		unsigned short pin = pdata->gpimap[i].pin;
+
+		if (pin < ADP5589_GPI_PIN_BASE || pin > ADP5589_GPI_PIN_END) {
+			dev_err(&client->dev, "invalid gpi pin data\n");
+			return -EINVAL;
+		}
+
+		if ((1 << (pin - ADP5589_GPI_PIN_ROW_BASE)) &
+				pdata->keypad_en_mask) {
+			dev_err(&client->dev, "invalid gpi row/col data\n");
+			return -EINVAL;
+		}
+	}
+
+	if (!client->irq) {
+		dev_err(&client->dev, "no IRQ?\n");
+		return -EINVAL;
+	}
+
+	kpad = kzalloc(sizeof(*kpad), GFP_KERNEL);
+	input = input_allocate_device();
+	if (!kpad || !input) {
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	kpad->client = client;
+	kpad->input = input;
+
+	ret = adp5589_read(client, ADP5589_ID);
+	if (ret < 0) {
+		error = ret;
+		goto err_free_mem;
+	}
+
+	revid = (u8) ret & ADP5589_DEVICE_ID_MASK;
+
+	input->name = client->name;
+	input->phys = "adp5589-keys/input0";
+	input->dev.parent = &client->dev;
+
+	input_set_drvdata(input, kpad);
+
+	input->id.bustype = BUS_I2C;
+	input->id.vendor = 0x0001;
+	input->id.product = 0x0001;
+	input->id.version = revid;
+
+	input->keycodesize = sizeof(kpad->keycode[0]);
+	input->keycodemax = pdata->keymapsize;
+	input->keycode = kpad->keycode;
+
+	memcpy(kpad->keycode, pdata->keymap,
+	       pdata->keymapsize * input->keycodesize);
+
+	kpad->gpimap = pdata->gpimap;
+	kpad->gpimapsize = pdata->gpimapsize;
+
+	/* setup input device */
+	__set_bit(EV_KEY, input->evbit);
+
+	if (pdata->repeat)
+		__set_bit(EV_REP, input->evbit);
+
+	for (i = 0; i < input->keycodemax; i++)
+		__set_bit(kpad->keycode[i] & KEY_MAX, input->keybit);
+	__clear_bit(KEY_RESERVED, input->keybit);
+
+	if (kpad->gpimapsize)
+		__set_bit(EV_SW, input->evbit);
+	for (i = 0; i < kpad->gpimapsize; i++)
+		__set_bit(kpad->gpimap[i].sw_evt, input->swbit);
+
+	error = input_register_device(input);
+	if (error) {
+		dev_err(&client->dev, "unable to register input device\n");
+		goto err_free_mem;
+	}
+
+	error = request_threaded_irq(client->irq, NULL, adp5589_irq,
+				     IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+				     client->dev.driver->name, kpad);
+	if (error) {
+		dev_err(&client->dev, "irq %d busy?\n", client->irq);
+		goto err_unreg_dev;
+	}
+
+	error = adp5589_setup(kpad);
+	if (error)
+		goto err_free_irq;
+
+	if (kpad->gpimapsize)
+		adp5589_report_switch_state(kpad);
+
+	error = adp5589_gpio_add(kpad);
+	if (error)
+		goto err_free_irq;
+
+	device_init_wakeup(&client->dev, 1);
+	i2c_set_clientdata(client, kpad);
+
+	dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
+	return 0;
+
+err_free_irq:
+	free_irq(client->irq, kpad);
+err_unreg_dev:
+	input_unregister_device(input);
+	input = NULL;
+err_free_mem:
+	input_free_device(input);
+	kfree(kpad);
+
+	return error;
+}
+
+static int __devexit adp5589_remove(struct i2c_client *client)
+{
+	struct adp5589_kpad *kpad = i2c_get_clientdata(client);
+
+	adp5589_write(client, ADP5589_GENERAL_CFG, 0);
+	free_irq(client->irq, kpad);
+	input_unregister_device(kpad->input);
+	adp5589_gpio_remove(kpad);
+	kfree(kpad);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int adp5589_suspend(struct device *dev)
+{
+	struct adp5589_kpad *kpad = dev_get_drvdata(dev);
+	struct i2c_client *client = kpad->client;
+
+	disable_irq(client->irq);
+
+	if (device_may_wakeup(&client->dev))
+		enable_irq_wake(client->irq);
+
+	return 0;
+}
+
+static int adp5589_resume(struct device *dev)
+{
+	struct adp5589_kpad *kpad = dev_get_drvdata(dev);
+	struct i2c_client *client = kpad->client;
+
+	if (device_may_wakeup(&client->dev))
+		disable_irq_wake(client->irq);
+
+	enable_irq(client->irq);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(adp5589_dev_pm_ops, adp5589_suspend, adp5589_resume);
+
+static const struct i2c_device_id adp5589_id[] = {
+	{"adp5589-keys", 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, adp5589_id);
+
+static struct i2c_driver adp5589_driver = {
+	.driver = {
+		.name = KBUILD_MODNAME,
+		.owner = THIS_MODULE,
+		.pm = &adp5589_dev_pm_ops,
+	},
+	.probe = adp5589_probe,
+	.remove = __devexit_p(adp5589_remove),
+	.id_table = adp5589_id,
+};
+
+static int __init adp5589_init(void)
+{
+	return i2c_add_driver(&adp5589_driver);
+}
+module_init(adp5589_init);
+
+static void __exit adp5589_exit(void)
+{
+	i2c_del_driver(&adp5589_driver);
+}
+module_exit(adp5589_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("ADP5589 Keypad driver");
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index eb3006361ee..6e6145b9a4c 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -324,7 +324,12 @@ static void gpio_keys_report_event(struct gpio_button_data *bdata)
 	unsigned int type = button->type ?: EV_KEY;
 	int state = (gpio_get_value_cansleep(button->gpio) ? 1 : 0) ^ button->active_low;
 
-	input_event(input, type, button->code, !!state);
+	if (type == EV_ABS) {
+		if (state)
+			input_event(input, type, button->code, button->value);
+	} else {
+		input_event(input, type, button->code, !!state);
+	}
 	input_sync(input);
 }
 
@@ -363,7 +368,7 @@ static int __devinit gpio_keys_setup_key(struct platform_device *pdev,
 					 struct gpio_button_data *bdata,
 					 struct gpio_keys_button *button)
 {
-	char *desc = button->desc ? button->desc : "gpio_keys";
+	const char *desc = button->desc ? button->desc : "gpio_keys";
 	struct device *dev = &pdev->dev;
 	unsigned long irqflags;
 	int irq, error;
@@ -468,7 +473,7 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, ddata);
 	input_set_drvdata(input, ddata);
 
-	input->name = pdev->name;
+	input->name = pdata->name ? : pdev->name;
 	input->phys = "gpio-keys/input0";
 	input->dev.parent = &pdev->dev;
 	input->open = gpio_keys_open;
diff --git a/drivers/input/keyboard/mpr121_touchkey.c b/drivers/input/keyboard/mpr121_touchkey.c
new file mode 100644
index 00000000000..0a9e8119488
--- /dev/null
+++ b/drivers/input/keyboard/mpr121_touchkey.c
@@ -0,0 +1,339 @@
+/*
+ * Touchkey driver for Freescale MPR121 Controllor
+ *
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ * Author: Zhang Jiejing <jiejing.zhang@freescale.com>
+ *
+ * Based on mcs_touchkey.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/interrupt.h>
+#include <linux/i2c/mpr121_touchkey.h>
+
+/* Register definitions */
+#define ELE_TOUCH_STATUS_0_ADDR	0x0
+#define ELE_TOUCH_STATUS_1_ADDR	0X1
+#define MHD_RISING_ADDR		0x2b
+#define NHD_RISING_ADDR		0x2c
+#define NCL_RISING_ADDR		0x2d
+#define FDL_RISING_ADDR		0x2e
+#define MHD_FALLING_ADDR	0x2f
+#define NHD_FALLING_ADDR	0x30
+#define NCL_FALLING_ADDR	0x31
+#define FDL_FALLING_ADDR	0x32
+#define ELE0_TOUCH_THRESHOLD_ADDR	0x41
+#define ELE0_RELEASE_THRESHOLD_ADDR	0x42
+#define AFE_CONF_ADDR			0x5c
+#define FILTER_CONF_ADDR		0x5d
+
+/*
+ * ELECTRODE_CONF_ADDR: This register configures the number of
+ * enabled capacitance sensing inputs and its run/suspend mode.
+ */
+#define ELECTRODE_CONF_ADDR		0x5e
+#define AUTO_CONFIG_CTRL_ADDR		0x7b
+#define AUTO_CONFIG_USL_ADDR		0x7d
+#define AUTO_CONFIG_LSL_ADDR		0x7e
+#define AUTO_CONFIG_TL_ADDR		0x7f
+
+/* Threshold of touch/release trigger */
+#define TOUCH_THRESHOLD			0x0f
+#define RELEASE_THRESHOLD		0x0a
+/* Masks for touch and release triggers */
+#define TOUCH_STATUS_MASK		0xfff
+/* MPR121 has 12 keys */
+#define MPR121_MAX_KEY_COUNT		12
+
+struct mpr121_touchkey {
+	struct i2c_client	*client;
+	struct input_dev	*input_dev;
+	unsigned int		key_val;
+	unsigned int		statusbits;
+	unsigned int		keycount;
+	u16			keycodes[MPR121_MAX_KEY_COUNT];
+};
+
+struct mpr121_init_register {
+	int addr;
+	u8 val;
+};
+
+static const struct mpr121_init_register init_reg_table[] __devinitconst = {
+	{ MHD_RISING_ADDR,	0x1 },
+	{ NHD_RISING_ADDR,	0x1 },
+	{ MHD_FALLING_ADDR,	0x1 },
+	{ NHD_FALLING_ADDR,	0x1 },
+	{ NCL_FALLING_ADDR,	0xff },
+	{ FDL_FALLING_ADDR,	0x02 },
+	{ FILTER_CONF_ADDR,	0x04 },
+	{ AFE_CONF_ADDR,	0x0b },
+	{ AUTO_CONFIG_CTRL_ADDR, 0x0b },
+};
+
+static irqreturn_t mpr_touchkey_interrupt(int irq, void *dev_id)
+{
+	struct mpr121_touchkey *mpr121 = dev_id;
+	struct i2c_client *client = mpr121->client;
+	struct input_dev *input = mpr121->input_dev;
+	unsigned int key_num, key_val, pressed;
+	int reg;
+
+	reg = i2c_smbus_read_byte_data(client, ELE_TOUCH_STATUS_1_ADDR);
+	if (reg < 0) {
+		dev_err(&client->dev, "i2c read error [%d]\n", reg);
+		goto out;
+	}
+
+	reg <<= 8;
+	reg |= i2c_smbus_read_byte_data(client, ELE_TOUCH_STATUS_0_ADDR);
+	if (reg < 0) {
+		dev_err(&client->dev, "i2c read error [%d]\n", reg);
+		goto out;
+	}
+
+	reg &= TOUCH_STATUS_MASK;
+	/* use old press bit to figure out which bit changed */
+	key_num = ffs(reg ^ mpr121->statusbits) - 1;
+	pressed = reg & (1 << key_num);
+	mpr121->statusbits = reg;
+
+	key_val = mpr121->keycodes[key_num];
+
+	input_event(input, EV_MSC, MSC_SCAN, key_num);
+	input_report_key(input, key_val, pressed);
+	input_sync(input);
+
+	dev_dbg(&client->dev, "key %d %d %s\n", key_num, key_val,
+		pressed ? "pressed" : "released");
+
+out:
+	return IRQ_HANDLED;
+}
+
+static int __devinit mpr121_phys_init(const struct mpr121_platform_data *pdata,
+				      struct mpr121_touchkey *mpr121,
+				      struct i2c_client *client)
+{
+	const struct mpr121_init_register *reg;
+	unsigned char usl, lsl, tl;
+	int i, t, vdd, ret;
+
+	/* Set up touch/release threshold for ele0-ele11 */
+	for (i = 0; i <= MPR121_MAX_KEY_COUNT; i++) {
+		t = ELE0_TOUCH_THRESHOLD_ADDR + (i * 2);
+		ret = i2c_smbus_write_byte_data(client, t, TOUCH_THRESHOLD);
+		if (ret < 0)
+			goto err_i2c_write;
+		ret = i2c_smbus_write_byte_data(client, t + 1,
+						RELEASE_THRESHOLD);
+		if (ret < 0)
+			goto err_i2c_write;
+	}
+
+	/* Set up init register */
+	for (i = 0; i < ARRAY_SIZE(init_reg_table); i++) {
+		reg = &init_reg_table[i];
+		ret = i2c_smbus_write_byte_data(client, reg->addr, reg->val);
+		if (ret < 0)
+			goto err_i2c_write;
+	}
+
+
+	/*
+	 * Capacitance on sensing input varies and needs to be compensated.
+	 * The internal MPR121-auto-configuration can do this if it's
+	 * registers are set properly (based on pdata->vdd_uv).
+	 */
+	vdd = pdata->vdd_uv / 1000;
+	usl = ((vdd - 700) * 256) / vdd;
+	lsl = (usl * 65) / 100;
+	tl = (usl * 90) / 100;
+	ret = i2c_smbus_write_byte_data(client, AUTO_CONFIG_USL_ADDR, usl);
+	ret |= i2c_smbus_write_byte_data(client, AUTO_CONFIG_LSL_ADDR, lsl);
+	ret |= i2c_smbus_write_byte_data(client, AUTO_CONFIG_TL_ADDR, tl);
+	ret |= i2c_smbus_write_byte_data(client, ELECTRODE_CONF_ADDR,
+					 mpr121->keycount);
+	if (ret != 0)
+		goto err_i2c_write;
+
+	dev_dbg(&client->dev, "set up with %x keys.\n", mpr121->keycount);
+
+	return 0;
+
+err_i2c_write:
+	dev_err(&client->dev, "i2c write error: %d\n", ret);
+	return ret;
+}
+
+static int __devinit mpr_touchkey_probe(struct i2c_client *client,
+					const struct i2c_device_id *id)
+{
+	const struct mpr121_platform_data *pdata = client->dev.platform_data;
+	struct mpr121_touchkey *mpr121;
+	struct input_dev *input_dev;
+	int error;
+	int i;
+
+	if (!pdata) {
+		dev_err(&client->dev, "no platform data defined\n");
+		return -EINVAL;
+	}
+
+	if (!pdata->keymap || !pdata->keymap_size) {
+		dev_err(&client->dev, "missing keymap data\n");
+		return -EINVAL;
+	}
+
+	if (pdata->keymap_size > MPR121_MAX_KEY_COUNT) {
+		dev_err(&client->dev, "too many keys defined\n");
+		return -EINVAL;
+	}
+
+	if (!client->irq) {
+		dev_err(&client->dev, "irq number should not be zero\n");
+		return -EINVAL;
+	}
+
+	mpr121 = kzalloc(sizeof(struct mpr121_touchkey), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!mpr121 || !input_dev) {
+		dev_err(&client->dev, "Failed to allocate memory\n");
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	mpr121->client = client;
+	mpr121->input_dev = input_dev;
+	mpr121->keycount = pdata->keymap_size;
+
+	input_dev->name = "Freescale MPR121 Touchkey";
+	input_dev->id.bustype = BUS_I2C;
+	input_dev->dev.parent = &client->dev;
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+
+	input_dev->keycode = mpr121->keycodes;
+	input_dev->keycodesize = sizeof(mpr121->keycodes[0]);
+	input_dev->keycodemax = mpr121->keycount;
+
+	for (i = 0; i < pdata->keymap_size; i++) {
+		input_set_capability(input_dev, EV_KEY, pdata->keymap[i]);
+		mpr121->keycodes[i] = pdata->keymap[i];
+	}
+
+	error = mpr121_phys_init(pdata, mpr121, client);
+	if (error) {
+		dev_err(&client->dev, "Failed to init register\n");
+		goto err_free_mem;
+	}
+
+	error = request_threaded_irq(client->irq, NULL,
+				     mpr_touchkey_interrupt,
+				     IRQF_TRIGGER_FALLING,
+				     client->dev.driver->name, mpr121);
+	if (error) {
+		dev_err(&client->dev, "Failed to register interrupt\n");
+		goto err_free_mem;
+	}
+
+	error = input_register_device(input_dev);
+	if (error)
+		goto err_free_irq;
+
+	i2c_set_clientdata(client, mpr121);
+	device_init_wakeup(&client->dev, pdata->wakeup);
+
+	return 0;
+
+err_free_irq:
+	free_irq(client->irq, mpr121);
+err_free_mem:
+	input_free_device(input_dev);
+	kfree(mpr121);
+	return error;
+}
+
+static int __devexit mpr_touchkey_remove(struct i2c_client *client)
+{
+	struct mpr121_touchkey *mpr121 = i2c_get_clientdata(client);
+
+	free_irq(client->irq, mpr121);
+	input_unregister_device(mpr121->input_dev);
+	kfree(mpr121);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int mpr_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+
+	if (device_may_wakeup(&client->dev))
+		enable_irq_wake(client->irq);
+
+	i2c_smbus_write_byte_data(client, ELECTRODE_CONF_ADDR, 0x00);
+
+	return 0;
+}
+
+static int mpr_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct mpr121_touchkey *mpr121 = i2c_get_clientdata(client);
+
+	if (device_may_wakeup(&client->dev))
+		disable_irq_wake(client->irq);
+
+	i2c_smbus_write_byte_data(client, ELECTRODE_CONF_ADDR,
+				  mpr121->keycount);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(mpr121_touchkey_pm_ops, mpr_suspend, mpr_resume);
+
+static const struct i2c_device_id mpr121_id[] = {
+	{ "mpr121_touchkey", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, mpr121_id);
+
+static struct i2c_driver mpr_touchkey_driver = {
+	.driver = {
+		.name	= "mpr121",
+		.owner	= THIS_MODULE,
+		.pm	= &mpr121_touchkey_pm_ops,
+	},
+	.id_table	= mpr121_id,
+	.probe		= mpr_touchkey_probe,
+	.remove		= __devexit_p(mpr_touchkey_remove),
+};
+
+static int __init mpr_touchkey_init(void)
+{
+	return i2c_add_driver(&mpr_touchkey_driver);
+}
+module_init(mpr_touchkey_init);
+
+static void __exit mpr_touchkey_exit(void)
+{
+	i2c_del_driver(&mpr_touchkey_driver);
+}
+module_exit(mpr_touchkey_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Zhang Jiejing <jiejing.zhang@freescale.com>");
+MODULE_DESCRIPTION("Touch Key driver for Freescale MPR121 Chip");
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
index 0e2a19cb43d..f23a743817d 100644
--- a/drivers/input/keyboard/omap-keypad.c
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -413,7 +413,7 @@ static int __devinit omap_kp_probe(struct platform_device *pdev)
 	return 0;
 err5:
 	for (i = irq_idx - 1; i >=0; i--)
-		free_irq(row_gpios[i], NULL);
+		free_irq(row_gpios[i], omap_kp);
 err4:
 	input_unregister_device(omap_kp->input);
 	input_dev = NULL;
@@ -444,11 +444,11 @@ static int __devexit omap_kp_remove(struct platform_device *pdev)
 			gpio_free(col_gpios[i]);
 		for (i = 0; i < omap_kp->rows; i++) {
 			gpio_free(row_gpios[i]);
-			free_irq(gpio_to_irq(row_gpios[i]), NULL);
+			free_irq(gpio_to_irq(row_gpios[i]), omap_kp);
 		}
 	} else {
 		omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
-		free_irq(omap_kp->irq, NULL);
+		free_irq(omap_kp->irq, omap_kp);
 	}
 
 	del_timer_sync(&omap_kp->timer);
diff --git a/drivers/input/keyboard/qt1070.c b/drivers/input/keyboard/qt1070.c
index fba8404c729..ca7b89196ab 100644
--- a/drivers/input/keyboard/qt1070.c
+++ b/drivers/input/keyboard/qt1070.c
@@ -248,6 +248,7 @@ static const struct i2c_device_id qt1070_id[] = {
 	{ "qt1070", 0 },
 	{ },
 };
+MODULE_DEVICE_TABLE(i2c, qt1070_id);
 
 static struct i2c_driver qt1070_driver = {
 	.driver	= {
diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c
index d7dafd9425b..834cf98e7ef 100644
--- a/drivers/input/keyboard/sh_keysc.c
+++ b/drivers/input/keyboard/sh_keysc.c
@@ -20,7 +20,7 @@
 #include <linux/input.h>
 #include <linux/input/sh_keysc.h>
 #include <linux/bitmap.h>
-#include <linux/clk.h>
+#include <linux/pm_runtime.h>
 #include <linux/io.h>
 #include <linux/slab.h>
 
@@ -37,7 +37,6 @@ static const struct {
 
 struct sh_keysc_priv {
 	void __iomem *iomem_base;
-	struct clk *clk;
 	DECLARE_BITMAP(last_keys, SH_KEYSC_MAXKEYS);
 	struct input_dev *input;
 	struct sh_keysc_info pdata;
@@ -169,7 +168,6 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev)
 	struct sh_keysc_info *pdata;
 	struct resource *res;
 	struct input_dev *input;
-	char clk_name[8];
 	int i;
 	int irq, error;
 
@@ -210,19 +208,11 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev)
 		goto err1;
 	}
 
-	snprintf(clk_name, sizeof(clk_name), "keysc%d", pdev->id);
-	priv->clk = clk_get(&pdev->dev, clk_name);
-	if (IS_ERR(priv->clk)) {
-		dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name);
-		error = PTR_ERR(priv->clk);
-		goto err2;
-	}
-
 	priv->input = input_allocate_device();
 	if (!priv->input) {
 		dev_err(&pdev->dev, "failed to allocate input device\n");
 		error = -ENOMEM;
-		goto err3;
+		goto err2;
 	}
 
 	input = priv->input;
@@ -241,10 +231,11 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev)
 	input->keycodesize = sizeof(pdata->keycodes[0]);
 	input->keycodemax = ARRAY_SIZE(pdata->keycodes);
 
-	error = request_irq(irq, sh_keysc_isr, 0, pdev->name, pdev);
+	error = request_threaded_irq(irq, NULL, sh_keysc_isr, IRQF_ONESHOT,
+				     dev_name(&pdev->dev), pdev);
 	if (error) {
 		dev_err(&pdev->dev, "failed to request IRQ\n");
-		goto err4;
+		goto err3;
 	}
 
 	for (i = 0; i < SH_KEYSC_MAXKEYS; i++)
@@ -254,10 +245,11 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev)
 	error = input_register_device(input);
 	if (error) {
 		dev_err(&pdev->dev, "failed to register input device\n");
-		goto err5;
+		goto err4;
 	}
 
-	clk_enable(priv->clk);
+	pm_runtime_enable(&pdev->dev);
+	pm_runtime_get_sync(&pdev->dev);
 
 	sh_keysc_write(priv, KYCR1, (sh_keysc_mode[pdata->mode].kymd << 8) |
 		       pdata->scan_timing);
@@ -267,12 +259,10 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev)
 
 	return 0;
 
- err5:
-	free_irq(irq, pdev);
  err4:
-	input_free_device(input);
+	free_irq(irq, pdev);
  err3:
-	clk_put(priv->clk);
+	input_free_device(input);
  err2:
 	iounmap(priv->iomem_base);
  err1:
@@ -292,8 +282,8 @@ static int __devexit sh_keysc_remove(struct platform_device *pdev)
 	free_irq(platform_get_irq(pdev, 0), pdev);
 	iounmap(priv->iomem_base);
 
-	clk_disable(priv->clk);
-	clk_put(priv->clk);
+	pm_runtime_put_sync(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
 
 	platform_set_drvdata(pdev, NULL);
 	kfree(priv);
@@ -301,6 +291,7 @@ static int __devexit sh_keysc_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#if CONFIG_PM_SLEEP
 static int sh_keysc_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -311,14 +302,13 @@ static int sh_keysc_suspend(struct device *dev)
 	value = sh_keysc_read(priv, KYCR1);
 
 	if (device_may_wakeup(dev)) {
-		value |= 0x80;
+		sh_keysc_write(priv, KYCR1, value | 0x80);
 		enable_irq_wake(irq);
 	} else {
-		value &= ~0x80;
+		sh_keysc_write(priv, KYCR1, value & ~0x80);
+		pm_runtime_put_sync(dev);
 	}
 
-	sh_keysc_write(priv, KYCR1, value);
-
 	return 0;
 }
 
@@ -329,16 +319,17 @@ static int sh_keysc_resume(struct device *dev)
 
 	if (device_may_wakeup(dev))
 		disable_irq_wake(irq);
+	else
+		pm_runtime_get_sync(dev);
 
 	return 0;
 }
+#endif
 
-static const struct dev_pm_ops sh_keysc_dev_pm_ops = {
-	.suspend = sh_keysc_suspend,
-	.resume = sh_keysc_resume,
-};
+static SIMPLE_DEV_PM_OPS(sh_keysc_dev_pm_ops,
+			 sh_keysc_suspend, sh_keysc_resume);
 
-struct platform_driver sh_keysc_device_driver = {
+static struct platform_driver sh_keysc_device_driver = {
 	.probe		= sh_keysc_probe,
 	.remove		= __devexit_p(sh_keysc_remove),
 	.driver		= {
diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index 99ce9032d08..2b3b73ec668 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -66,12 +66,11 @@ struct tegra_kbc {
 	void __iomem *mmio;
 	struct input_dev *idev;
 	unsigned int irq;
-	unsigned int wake_enable_rows;
-	unsigned int wake_enable_cols;
 	spinlock_t lock;
 	unsigned int repoll_dly;
 	unsigned long cp_dly_jiffies;
 	bool use_fn_map;
+	bool use_ghost_filter;
 	const struct tegra_kbc_platform_data *pdata;
 	unsigned short keycode[KBC_MAX_KEY * 2];
 	unsigned short current_keys[KBC_MAX_KPENT];
@@ -260,6 +259,8 @@ static void tegra_kbc_report_keys(struct tegra_kbc *kbc)
 	unsigned int num_down = 0;
 	unsigned long flags;
 	bool fn_keypress = false;
+	bool key_in_same_row = false;
+	bool key_in_same_col = false;
 
 	spin_lock_irqsave(&kbc->lock, flags);
 	for (i = 0; i < KBC_MAX_KPENT; i++) {
@@ -285,6 +286,34 @@ static void tegra_kbc_report_keys(struct tegra_kbc *kbc)
 	}
 
 	/*
+	 * Matrix keyboard designs are prone to keyboard ghosting.
+	 * Ghosting occurs if there are 3 keys such that -
+	 * any 2 of the 3 keys share a row, and any 2 of them share a column.
+	 * If so ignore the key presses for this iteration.
+	 */
+	if ((kbc->use_ghost_filter) && (num_down >= 3)) {
+		for (i = 0; i < num_down; i++) {
+			unsigned int j;
+			u8 curr_col = scancodes[i] & 0x07;
+			u8 curr_row = scancodes[i] >> KBC_ROW_SHIFT;
+
+			/*
+			 * Find 2 keys such that one key is in the same row
+			 * and the other is in the same column as the i-th key.
+			 */
+			for (j = i + 1; j < num_down; j++) {
+				u8 col = scancodes[j] & 0x07;
+				u8 row = scancodes[j] >> KBC_ROW_SHIFT;
+
+				if (col == curr_col)
+					key_in_same_col = true;
+				if (row == curr_row)
+					key_in_same_row = true;
+			}
+		}
+	}
+
+	/*
 	 * If the platform uses Fn keymaps, translate keys on a Fn keypress.
 	 * Function keycodes are KBC_MAX_KEY apart from the plain keycodes.
 	 */
@@ -297,6 +326,10 @@ static void tegra_kbc_report_keys(struct tegra_kbc *kbc)
 
 	spin_unlock_irqrestore(&kbc->lock, flags);
 
+	/* Ignore the key presses for this iteration? */
+	if (key_in_same_col && key_in_same_row)
+		return;
+
 	tegra_kbc_report_released_keys(kbc->idev,
 				       kbc->current_keys, kbc->num_pressed_keys,
 				       keycodes, num_down);
@@ -383,21 +416,11 @@ static void tegra_kbc_setup_wakekeys(struct tegra_kbc *kbc, bool filter)
 	int i;
 	unsigned int rst_val;
 
-	BUG_ON(pdata->wake_cnt > KBC_MAX_KEY);
-	rst_val = (filter && pdata->wake_cnt) ? ~0 : 0;
+	/* Either mask all keys or none. */
+	rst_val = (filter && !pdata->wakeup) ? ~0 : 0;
 
 	for (i = 0; i < KBC_MAX_ROW; i++)
 		writel(rst_val, kbc->mmio + KBC_ROW0_MASK_0 + i * 4);
-
-	if (filter) {
-		for (i = 0; i < pdata->wake_cnt; i++) {
-			u32 val, addr;
-			addr = pdata->wake_cfg[i].row * 4 + KBC_ROW0_MASK_0;
-			val = readl(kbc->mmio + addr);
-			val &= ~(1 << pdata->wake_cfg[i].col);
-			writel(val, kbc->mmio + addr);
-		}
-	}
 }
 
 static void tegra_kbc_config_pins(struct tegra_kbc *kbc)
@@ -559,7 +582,6 @@ static int __devinit tegra_kbc_probe(struct platform_device *pdev)
 	struct resource *res;
 	int irq;
 	int err;
-	int i;
 	int num_rows = 0;
 	unsigned int debounce_cnt;
 	unsigned int scan_time_rows;
@@ -616,13 +638,6 @@ static int __devinit tegra_kbc_probe(struct platform_device *pdev)
 		goto err_iounmap;
 	}
 
-	kbc->wake_enable_rows = 0;
-	kbc->wake_enable_cols = 0;
-	for (i = 0; i < pdata->wake_cnt; i++) {
-		kbc->wake_enable_rows |= (1 << pdata->wake_cfg[i].row);
-		kbc->wake_enable_cols |= (1 << pdata->wake_cfg[i].col);
-	}
-
 	/*
 	 * The time delay between two consecutive reads of the FIFO is
 	 * the sum of the repeat time and the time taken for scanning
@@ -652,6 +667,7 @@ static int __devinit tegra_kbc_probe(struct platform_device *pdev)
 		input_dev->keycodemax *= 2;
 
 	kbc->use_fn_map = pdata->use_fn_map;
+	kbc->use_ghost_filter = pdata->use_ghost_filter;
 	keymap_data = pdata->keymap_data ?: &tegra_kbc_default_keymap_data;
 	matrix_keypad_build_keymap(keymap_data, KBC_ROW_SHIFT,
 				   input_dev->keycode, input_dev->keybit);
diff --git a/drivers/input/misc/ad714x.c b/drivers/input/misc/ad714x.c
index c431d09e401..c3a62c42cd2 100644
--- a/drivers/input/misc/ad714x.c
+++ b/drivers/input/misc/ad714x.c
@@ -79,13 +79,7 @@ struct ad714x_slider_drv {
 struct ad714x_wheel_drv {
 	int abs_pos;
 	int flt_pos;
-	int pre_mean_value;
 	int pre_highest_stage;
-	int pre_mean_value_no_offset;
-	int mean_value;
-	int mean_value_no_offset;
-	int pos_offset;
-	int pos_ratio;
 	int highest_stage;
 	enum ad714x_device_state state;
 	struct input_dev *input;
@@ -158,10 +152,10 @@ static void ad714x_use_com_int(struct ad714x_chip *ad714x,
 	unsigned short data;
 	unsigned short mask;
 
-	mask = ((1 << (end_stage + 1)) - 1) - (1 << start_stage);
+	mask = ((1 << (end_stage + 1)) - 1) - ((1 << start_stage) - 1);
 
 	ad714x->read(ad714x->dev, STG_COM_INT_EN_REG, &data);
-	data |= 1 << start_stage;
+	data |= 1 << end_stage;
 	ad714x->write(ad714x->dev, STG_COM_INT_EN_REG, data);
 
 	ad714x->read(ad714x->dev, STG_HIGH_INT_EN_REG, &data);
@@ -175,10 +169,10 @@ static void ad714x_use_thr_int(struct ad714x_chip *ad714x,
 	unsigned short data;
 	unsigned short mask;
 
-	mask = ((1 << (end_stage + 1)) - 1) - (1 << start_stage);
+	mask = ((1 << (end_stage + 1)) - 1) - ((1 << start_stage) - 1);
 
 	ad714x->read(ad714x->dev, STG_COM_INT_EN_REG, &data);
-	data &= ~(1 << start_stage);
+	data &= ~(1 << end_stage);
 	ad714x->write(ad714x->dev, STG_COM_INT_EN_REG, data);
 
 	ad714x->read(ad714x->dev, STG_HIGH_INT_EN_REG, &data);
@@ -404,7 +398,6 @@ static void ad714x_slider_state_machine(struct ad714x_chip *ad714x, int idx)
 				ad714x_slider_cal_highest_stage(ad714x, idx);
 				ad714x_slider_cal_abs_pos(ad714x, idx);
 				ad714x_slider_cal_flt_pos(ad714x, idx);
-
 				input_report_abs(sw->input, ABS_X, sw->flt_pos);
 				input_report_key(sw->input, BTN_TOUCH, 1);
 			} else {
@@ -468,104 +461,41 @@ static void ad714x_wheel_cal_sensor_val(struct ad714x_chip *ad714x, int idx)
 /*
  * When the scroll wheel is activated, we compute the absolute position based
  * on the sensor values. To calculate the position, we first determine the
- * sensor that has the greatest response among the 8 sensors that constitutes
- * the scrollwheel. Then we determined the 2 sensors on either sides of the
+ * sensor that has the greatest response among the sensors that constitutes
+ * the scrollwheel. Then we determined the sensors on either sides of the
  * sensor with the highest response and we apply weights to these sensors. The
- * result of this computation gives us the mean value which defined by the
- * following formula:
- * For i= second_before_highest_stage to i= second_after_highest_stage
- *         v += Sensor response(i)*WEIGHT*(i+3)
- *         w += Sensor response(i)
- * Mean_Value=v/w
- * pos_on_scrollwheel = (Mean_Value - position_offset) / position_ratio
+ * result of this computation gives us the mean value.
  */
 
-#define WEIGHT_FACTOR 30
-/* This constant prevents the "PositionOffset" from reaching a big value */
-#define OFFSET_POSITION_CLAMP	120
 static void ad714x_wheel_cal_abs_pos(struct ad714x_chip *ad714x, int idx)
 {
 	struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
 	struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx];
 	int stage_num = hw->end_stage - hw->start_stage + 1;
-	int second_before, first_before, highest, first_after, second_after;
+	int first_before, highest, first_after;
 	int a_param, b_param;
 
-	/* Calculate Mean value */
-
-	second_before = (sw->highest_stage + stage_num - 2) % stage_num;
 	first_before = (sw->highest_stage + stage_num - 1) % stage_num;
 	highest = sw->highest_stage;
 	first_after = (sw->highest_stage + stage_num + 1) % stage_num;
-	second_after = (sw->highest_stage + stage_num + 2) % stage_num;
-
-	if (((sw->highest_stage - hw->start_stage) > 1) &&
-	    ((hw->end_stage - sw->highest_stage) > 1)) {
-		a_param = ad714x->sensor_val[second_before] *
-			(second_before - hw->start_stage + 3) +
-			ad714x->sensor_val[first_before] *
-			(second_before - hw->start_stage + 3) +
-			ad714x->sensor_val[highest] *
-			(second_before - hw->start_stage + 3) +
-			ad714x->sensor_val[first_after] *
-			(first_after - hw->start_stage + 3) +
-			ad714x->sensor_val[second_after] *
-			(second_after - hw->start_stage + 3);
-	} else {
-		a_param = ad714x->sensor_val[second_before] *
-			(second_before - hw->start_stage + 1) +
-			ad714x->sensor_val[first_before] *
-			(second_before - hw->start_stage + 2) +
-			ad714x->sensor_val[highest] *
-			(second_before - hw->start_stage + 3) +
-			ad714x->sensor_val[first_after] *
-			(first_after - hw->start_stage + 4) +
-			ad714x->sensor_val[second_after] *
-			(second_after - hw->start_stage + 5);
-	}
-	a_param *= WEIGHT_FACTOR;
 
-	b_param = ad714x->sensor_val[second_before] +
+	a_param = ad714x->sensor_val[highest] *
+		(highest - hw->start_stage) +
+		ad714x->sensor_val[first_before] *
+		(highest - hw->start_stage - 1) +
+		ad714x->sensor_val[first_after] *
+		(highest - hw->start_stage + 1);
+	b_param = ad714x->sensor_val[highest] +
 		ad714x->sensor_val[first_before] +
-		ad714x->sensor_val[highest] +
-		ad714x->sensor_val[first_after] +
-		ad714x->sensor_val[second_after];
-
-	sw->pre_mean_value = sw->mean_value;
-	sw->mean_value = a_param / b_param;
-
-	/* Calculate the offset */
-
-	if ((sw->pre_highest_stage == hw->end_stage) &&
-			(sw->highest_stage == hw->start_stage))
-		sw->pos_offset = sw->mean_value;
-	else if ((sw->pre_highest_stage == hw->start_stage) &&
-			(sw->highest_stage == hw->end_stage))
-		sw->pos_offset = sw->pre_mean_value;
-
-	if (sw->pos_offset > OFFSET_POSITION_CLAMP)
-		sw->pos_offset = OFFSET_POSITION_CLAMP;
-
-	/* Calculate the mean value without the offset */
-
-	sw->pre_mean_value_no_offset = sw->mean_value_no_offset;
-	sw->mean_value_no_offset = sw->mean_value - sw->pos_offset;
-	if (sw->mean_value_no_offset < 0)
-		sw->mean_value_no_offset = 0;
-
-	/* Calculate ratio to scale down to NUMBER_OF_WANTED_POSITIONS */
-
-	if ((sw->pre_highest_stage == hw->end_stage) &&
-			(sw->highest_stage == hw->start_stage))
-		sw->pos_ratio = (sw->pre_mean_value_no_offset * 100) /
-			hw->max_coord;
-	else if ((sw->pre_highest_stage == hw->start_stage) &&
-			(sw->highest_stage == hw->end_stage))
-		sw->pos_ratio = (sw->mean_value_no_offset * 100) /
-			hw->max_coord;
-	sw->abs_pos = (sw->mean_value_no_offset * 100) / sw->pos_ratio;
+		ad714x->sensor_val[first_after];
+
+	sw->abs_pos = ((hw->max_coord / (hw->end_stage - hw->start_stage)) *
+			a_param) / b_param;
+
 	if (sw->abs_pos > hw->max_coord)
 		sw->abs_pos = hw->max_coord;
+	else if (sw->abs_pos < 0)
+		sw->abs_pos = 0;
 }
 
 static void ad714x_wheel_cal_flt_pos(struct ad714x_chip *ad714x, int idx)
@@ -639,9 +569,8 @@ static void ad714x_wheel_state_machine(struct ad714x_chip *ad714x, int idx)
 				ad714x_wheel_cal_highest_stage(ad714x, idx);
 				ad714x_wheel_cal_abs_pos(ad714x, idx);
 				ad714x_wheel_cal_flt_pos(ad714x, idx);
-
 				input_report_abs(sw->input, ABS_WHEEL,
-					sw->abs_pos);
+					sw->flt_pos);
 				input_report_key(sw->input, BTN_TOUCH, 1);
 			} else {
 				/* When the user lifts off the sensor, configure
@@ -1149,6 +1078,8 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq,
 			input[alloc_idx]->id.bustype = bus_type;
 			input[alloc_idx]->id.product = ad714x->product;
 			input[alloc_idx]->id.version = ad714x->version;
+			input[alloc_idx]->name = "ad714x_captouch_slider";
+			input[alloc_idx]->dev.parent = dev;
 
 			error = input_register_device(input[alloc_idx]);
 			if (error)
@@ -1179,6 +1110,8 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq,
 			input[alloc_idx]->id.bustype = bus_type;
 			input[alloc_idx]->id.product = ad714x->product;
 			input[alloc_idx]->id.version = ad714x->version;
+			input[alloc_idx]->name = "ad714x_captouch_wheel";
+			input[alloc_idx]->dev.parent = dev;
 
 			error = input_register_device(input[alloc_idx]);
 			if (error)
@@ -1212,6 +1145,8 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq,
 			input[alloc_idx]->id.bustype = bus_type;
 			input[alloc_idx]->id.product = ad714x->product;
 			input[alloc_idx]->id.version = ad714x->version;
+			input[alloc_idx]->name = "ad714x_captouch_pad";
+			input[alloc_idx]->dev.parent = dev;
 
 			error = input_register_device(input[alloc_idx]);
 			if (error)
@@ -1240,6 +1175,8 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq,
 		input[alloc_idx]->id.bustype = bus_type;
 		input[alloc_idx]->id.product = ad714x->product;
 		input[alloc_idx]->id.version = ad714x->version;
+		input[alloc_idx]->name = "ad714x_captouch_button";
+		input[alloc_idx]->dev.parent = dev;
 
 		error = input_register_device(input[alloc_idx]);
 		if (error)
@@ -1249,7 +1186,9 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq,
 	}
 
 	error = request_threaded_irq(ad714x->irq, NULL, ad714x_interrupt_thread,
-			IRQF_TRIGGER_FALLING, "ad714x_captouch", ad714x);
+				plat_data->irqflags ?
+					plat_data->irqflags : IRQF_TRIGGER_FALLING,
+				"ad714x_captouch", ad714x);
 	if (error) {
 		dev_err(dev, "can't allocate irq %d\n", ad714x->irq);
 		goto err_unreg_dev;
diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
index 9ccdb82d869..1de58e8a1b7 100644
--- a/drivers/input/misc/ati_remote2.c
+++ b/drivers/input/misc/ati_remote2.c
@@ -737,14 +737,17 @@ static ssize_t ati_remote2_store_channel_mask(struct device *dev,
 
 	mutex_lock(&ati_remote2_mutex);
 
-	if (mask != ar2->channel_mask && !ati_remote2_setup(ar2, mask))
-		ar2->channel_mask = mask;
+	if (mask != ar2->channel_mask) {
+		r = ati_remote2_setup(ar2, mask);
+		if (!r)
+			ar2->channel_mask = mask;
+	}
 
 	mutex_unlock(&ati_remote2_mutex);
 
 	usb_autopm_put_interface(ar2->intf[0]);
 
-	return count;
+	return r ? r : count;
 }
 
 static ssize_t ati_remote2_show_mode_mask(struct device *dev,
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
index 7e64d01da2b..2c8b84dd9da 100644
--- a/drivers/input/misc/rotary_encoder.c
+++ b/drivers/input/misc/rotary_encoder.c
@@ -2,6 +2,7 @@
  * rotary_encoder.c
  *
  * (c) 2009 Daniel Mack <daniel@caiaq.de>
+ * Copyright (C) 2011 Johan Hovold <jhovold@gmail.com>
  *
  * state machine code inspired by code from Tim Ruetz
  *
@@ -38,52 +39,66 @@ struct rotary_encoder {
 
 	bool armed;
 	unsigned char dir;	/* 0 - clockwise, 1 - CCW */
+
+	char last_stable;
 };
 
-static irqreturn_t rotary_encoder_irq(int irq, void *dev_id)
+static int rotary_encoder_get_state(struct rotary_encoder_platform_data *pdata)
 {
-	struct rotary_encoder *encoder = dev_id;
-	struct rotary_encoder_platform_data *pdata = encoder->pdata;
 	int a = !!gpio_get_value(pdata->gpio_a);
 	int b = !!gpio_get_value(pdata->gpio_b);
-	int state;
 
 	a ^= pdata->inverted_a;
 	b ^= pdata->inverted_b;
-	state = (a << 1) | b;
 
-	switch (state) {
+	return ((a << 1) | b);
+}
 
-	case 0x0:
-		if (!encoder->armed)
-			break;
+static void rotary_encoder_report_event(struct rotary_encoder *encoder)
+{
+	struct rotary_encoder_platform_data *pdata = encoder->pdata;
 
-		if (pdata->relative_axis) {
-			input_report_rel(encoder->input, pdata->axis,
-					 encoder->dir ? -1 : 1);
-		} else {
-			unsigned int pos = encoder->pos;
-
-			if (encoder->dir) {
-				/* turning counter-clockwise */
-				if (pdata->rollover)
-					pos += pdata->steps;
-				if (pos)
-					pos--;
-			} else {
-				/* turning clockwise */
-				if (pdata->rollover || pos < pdata->steps)
-					pos++;
-			}
+	if (pdata->relative_axis) {
+		input_report_rel(encoder->input,
+				 pdata->axis, encoder->dir ? -1 : 1);
+	} else {
+		unsigned int pos = encoder->pos;
+
+		if (encoder->dir) {
+			/* turning counter-clockwise */
 			if (pdata->rollover)
-				pos %= pdata->steps;
-			encoder->pos = pos;
-			input_report_abs(encoder->input, pdata->axis,
-					 encoder->pos);
+				pos += pdata->steps;
+			if (pos)
+				pos--;
+		} else {
+			/* turning clockwise */
+			if (pdata->rollover || pos < pdata->steps)
+				pos++;
 		}
-		input_sync(encoder->input);
 
-		encoder->armed = false;
+		if (pdata->rollover)
+			pos %= pdata->steps;
+
+		encoder->pos = pos;
+		input_report_abs(encoder->input, pdata->axis, encoder->pos);
+	}
+
+	input_sync(encoder->input);
+}
+
+static irqreturn_t rotary_encoder_irq(int irq, void *dev_id)
+{
+	struct rotary_encoder *encoder = dev_id;
+	int state;
+
+	state = rotary_encoder_get_state(encoder->pdata);
+
+	switch (state) {
+	case 0x0:
+		if (encoder->armed) {
+			rotary_encoder_report_event(encoder);
+			encoder->armed = false;
+		}
 		break;
 
 	case 0x1:
@@ -100,11 +115,37 @@ static irqreturn_t rotary_encoder_irq(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+static irqreturn_t rotary_encoder_half_period_irq(int irq, void *dev_id)
+{
+	struct rotary_encoder *encoder = dev_id;
+	int state;
+
+	state = rotary_encoder_get_state(encoder->pdata);
+
+	switch (state) {
+	case 0x00:
+	case 0x03:
+		if (state != encoder->last_stable) {
+			rotary_encoder_report_event(encoder);
+			encoder->last_stable = state;
+		}
+		break;
+
+	case 0x01:
+	case 0x02:
+		encoder->dir = (encoder->last_stable + state) & 0x01;
+		break;
+	}
+
+	return IRQ_HANDLED;
+}
+
 static int __devinit rotary_encoder_probe(struct platform_device *pdev)
 {
 	struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
 	struct rotary_encoder *encoder;
 	struct input_dev *input;
+	irq_handler_t handler;
 	int err;
 
 	if (!pdata) {
@@ -175,7 +216,14 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev)
 	}
 
 	/* request the IRQs */
-	err = request_irq(encoder->irq_a, &rotary_encoder_irq,
+	if (pdata->half_period) {
+		handler = &rotary_encoder_half_period_irq;
+		encoder->last_stable = rotary_encoder_get_state(pdata);
+	} else {
+		handler = &rotary_encoder_irq;
+	}
+
+	err = request_irq(encoder->irq_a, handler,
 			  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 			  DRV_NAME, encoder);
 	if (err) {
@@ -184,7 +232,7 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev)
 		goto exit_free_gpio_b;
 	}
 
-	err = request_irq(encoder->irq_b, &rotary_encoder_irq,
+	err = request_irq(encoder->irq_b, handler,
 			  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 			  DRV_NAME, encoder);
 	if (err) {
@@ -252,6 +300,5 @@ module_exit(rotary_encoder_exit);
 
 MODULE_ALIAS("platform:" DRV_NAME);
 MODULE_DESCRIPTION("GPIO rotary encoder driver");
-MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
+MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>, Johan Hovold");
 MODULE_LICENSE("GPL v2");
-
diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c
index f16972bddca..38e4b507b94 100644
--- a/drivers/input/misc/twl4030-pwrbutton.c
+++ b/drivers/input/misc/twl4030-pwrbutton.c
@@ -89,7 +89,7 @@ static int __init twl4030_pwrbutton_probe(struct platform_device *pdev)
 	return 0;
 
 free_irq:
-	free_irq(irq, NULL);
+	free_irq(irq, pwr);
 free_input_dev:
 	input_free_device(pwr);
 	return err;
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 04d9bf320a4..32503565faf 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -16,6 +16,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/input.h>
+#include <linux/input/mt.h>
 #include <linux/serio.h>
 #include <linux/libps2.h>
 #include "psmouse.h"
@@ -242,15 +243,37 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
 	input_sync(dev);
 }
 
+static void elantech_set_slot(struct input_dev *dev, int slot, bool active,
+			      unsigned int x, unsigned int y)
+{
+	input_mt_slot(dev, slot);
+	input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
+	if (active) {
+		input_report_abs(dev, ABS_MT_POSITION_X, x);
+		input_report_abs(dev, ABS_MT_POSITION_Y, y);
+	}
+}
+
+/* x1 < x2 and y1 < y2 when two fingers, x = y = 0 when not pressed */
+static void elantech_report_semi_mt_data(struct input_dev *dev,
+					 unsigned int num_fingers,
+					 unsigned int x1, unsigned int y1,
+					 unsigned int x2, unsigned int y2)
+{
+	elantech_set_slot(dev, 0, num_fingers != 0, x1, y1);
+	elantech_set_slot(dev, 1, num_fingers == 2, x2, y2);
+}
+
 /*
  * Interpret complete data packets and report absolute mode input events for
  * hardware version 2. (6 byte packets)
  */
 static void elantech_report_absolute_v2(struct psmouse *psmouse)
 {
+	struct elantech_data *etd = psmouse->private;
 	struct input_dev *dev = psmouse->dev;
 	unsigned char *packet = psmouse->packet;
-	int fingers, x1, y1, x2, y2;
+	unsigned int fingers, x1 = 0, y1 = 0, x2 = 0, y2 = 0, width = 0, pres = 0;
 
 	/* byte 0: n1  n0   .   .   .   .   R   L */
 	fingers = (packet[0] & 0xc0) >> 6;
@@ -270,14 +293,18 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse)
 		 * byte 1:  .   .   .   .   .  x10 x9  x8
 		 * byte 2: x7  x6  x5  x4  x4  x2  x1  x0
 		 */
-		input_report_abs(dev, ABS_X,
-			((packet[1] & 0x07) << 8) | packet[2]);
+		x1 = ((packet[1] & 0x07) << 8) | packet[2];
 		/*
 		 * byte 4:  .   .   .   .   .   .  y9  y8
 		 * byte 5: y7  y6  y5  y4  y3  y2  y1  y0
 		 */
-		input_report_abs(dev, ABS_Y,
-			ETP_YMAX_V2 - (((packet[4] & 0x03) << 8) | packet[5]));
+		y1 = ETP_YMAX_V2 - (((packet[4] & 0x03) << 8) | packet[5]);
+
+		input_report_abs(dev, ABS_X, x1);
+		input_report_abs(dev, ABS_Y, y1);
+
+		pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4);
+		width = ((packet[0] & 0x30) >> 2) | ((packet[3] & 0x30) >> 4);
 		break;
 
 	case 2:
@@ -303,23 +330,24 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse)
 		 */
 		input_report_abs(dev, ABS_X, x1 << 2);
 		input_report_abs(dev, ABS_Y, y1 << 2);
-		/*
-		 * For compatibility with the proprietary X Elantech driver
-		 * report both coordinates as hat coordinates
-		 */
-		input_report_abs(dev, ABS_HAT0X, x1);
-		input_report_abs(dev, ABS_HAT0Y, y1);
-		input_report_abs(dev, ABS_HAT1X, x2);
-		input_report_abs(dev, ABS_HAT1Y, y2);
+
+		/* Unknown so just report sensible values */
+		pres = 127;
+		width = 7;
 		break;
 	}
 
+	elantech_report_semi_mt_data(dev, fingers, x1, y1, x2, y2);
 	input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
 	input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2);
 	input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3);
 	input_report_key(dev, BTN_TOOL_QUADTAP, fingers == 4);
 	input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
 	input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+	if (etd->reports_pressure) {
+		input_report_abs(dev, ABS_PRESSURE, pres);
+		input_report_abs(dev, ABS_TOOL_WIDTH, width);
+	}
 
 	input_sync(dev);
 }
@@ -478,10 +506,16 @@ static void elantech_set_input_params(struct psmouse *psmouse)
 		__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
 		input_set_abs_params(dev, ABS_X, ETP_XMIN_V2, ETP_XMAX_V2, 0, 0);
 		input_set_abs_params(dev, ABS_Y, ETP_YMIN_V2, ETP_YMAX_V2, 0, 0);
-		input_set_abs_params(dev, ABS_HAT0X, ETP_2FT_XMIN, ETP_2FT_XMAX, 0, 0);
-		input_set_abs_params(dev, ABS_HAT0Y, ETP_2FT_YMIN, ETP_2FT_YMAX, 0, 0);
-		input_set_abs_params(dev, ABS_HAT1X, ETP_2FT_XMIN, ETP_2FT_XMAX, 0, 0);
-		input_set_abs_params(dev, ABS_HAT1Y, ETP_2FT_YMIN, ETP_2FT_YMAX, 0, 0);
+		if (etd->reports_pressure) {
+			input_set_abs_params(dev, ABS_PRESSURE, ETP_PMIN_V2,
+					     ETP_PMAX_V2, 0, 0);
+			input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
+					     ETP_WMAX_V2, 0, 0);
+		}
+		__set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
+		input_mt_init_slots(dev, 2);
+		input_set_abs_params(dev, ABS_MT_POSITION_X, ETP_XMIN_V2, ETP_XMAX_V2, 0, 0);
+		input_set_abs_params(dev, ABS_MT_POSITION_Y, ETP_YMIN_V2, ETP_YMAX_V2, 0, 0);
 		break;
 	}
 }
@@ -725,6 +759,10 @@ int elantech_init(struct psmouse *psmouse)
 		etd->debug = 1;
 		/* Don't know how to do parity checking for version 2 */
 		etd->paritycheck = 0;
+
+		if (etd->fw_version >= 0x020800)
+			etd->reports_pressure = true;
+
 	} else {
 		etd->hw_version = 1;
 		etd->paritycheck = 1;
diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h
index aa4aac5d219..fabb2b99615 100644
--- a/drivers/input/mouse/elantech.h
+++ b/drivers/input/mouse/elantech.h
@@ -77,6 +77,11 @@
 #define ETP_YMIN_V2			(   0 + ETP_EDGE_FUZZ_V2)
 #define ETP_YMAX_V2			( 768 - ETP_EDGE_FUZZ_V2)
 
+#define ETP_PMIN_V2			0
+#define ETP_PMAX_V2			255
+#define ETP_WMIN_V2			0
+#define ETP_WMAX_V2			15
+
 /*
  * For two finger touches the coordinate of each finger gets reported
  * separately but with reduced resolution.
@@ -102,6 +107,7 @@ struct elantech_data {
 	unsigned char capabilities;
 	bool paritycheck;
 	bool jumpy_cursor;
+	bool reports_pressure;
 	unsigned char hw_version;
 	unsigned int fw_version;
 	unsigned int single_finger_reports;
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index 7630273e947..257e033986e 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -508,7 +508,6 @@ static void mousedev_attach_client(struct mousedev *mousedev,
 	spin_lock(&mousedev->client_lock);
 	list_add_tail_rcu(&client->node, &mousedev->client_list);
 	spin_unlock(&mousedev->client_lock);
-	synchronize_rcu();
 }
 
 static void mousedev_detach_client(struct mousedev *mousedev,
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 434fd800cd2..cabd9e54863 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -248,6 +248,18 @@ config TOUCHSCREEN_LPC32XX
 	  To compile this driver as a module, choose M here: the
 	  module will be called lpc32xx_ts.
 
+config TOUCHSCREEN_MAX11801
+	tristate "MAX11801 based touchscreens"
+	depends on I2C
+	help
+	  Say Y here if you have a MAX11801 based touchscreen
+	  controller.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called max11801_ts.
+
 config TOUCHSCREEN_MCS5000
 	tristate "MELFAS MCS-5000 touchscreen"
 	depends on I2C
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index ca94098d4c9..282d6f76ae2 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -27,6 +27,7 @@ obj-$(CONFIG_TOUCHSCREEN_FUJITSU)	+= fujitsu_ts.o
 obj-$(CONFIG_TOUCHSCREEN_INEXIO)	+= inexio.o
 obj-$(CONFIG_TOUCHSCREEN_INTEL_MID)	+= intel-mid-touch.o
 obj-$(CONFIG_TOUCHSCREEN_LPC32XX)	+= lpc32xx_ts.o
+obj-$(CONFIG_TOUCHSCREEN_MAX11801)	+= max11801_ts.o
 obj-$(CONFIG_TOUCHSCREEN_MC13783)	+= mc13783_ts.o
 obj-$(CONFIG_TOUCHSCREEN_MCS5000)	+= mcs5000_ts.o
 obj-$(CONFIG_TOUCHSCREEN_MIGOR)		+= migor_ts.o
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 1de1c19dad3..5196861b86e 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -109,6 +109,7 @@ struct ads7846 {
 	u16			pressure_max;
 
 	bool			swap_xy;
+	bool			use_internal;
 
 	struct ads7846_packet	*packet;
 
@@ -307,7 +308,6 @@ static int ads7846_read12_ser(struct device *dev, unsigned command)
 	struct ads7846 *ts = dev_get_drvdata(dev);
 	struct ser_req *req;
 	int status;
-	int use_internal;
 
 	req = kzalloc(sizeof *req, GFP_KERNEL);
 	if (!req)
@@ -315,11 +315,8 @@ static int ads7846_read12_ser(struct device *dev, unsigned command)
 
 	spi_message_init(&req->msg);
 
-	/* FIXME boards with ads7846 might use external vref instead ... */
-	use_internal = (ts->model == 7846);
-
 	/* maybe turn on internal vREF, and let it settle */
-	if (use_internal) {
+	if (ts->use_internal) {
 		req->ref_on = REF_ON;
 		req->xfer[0].tx_buf = &req->ref_on;
 		req->xfer[0].len = 1;
@@ -331,8 +328,14 @@ static int ads7846_read12_ser(struct device *dev, unsigned command)
 		/* for 1uF, settle for 800 usec; no cap, 100 usec.  */
 		req->xfer[1].delay_usecs = ts->vref_delay_usecs;
 		spi_message_add_tail(&req->xfer[1], &req->msg);
+
+		/* Enable reference voltage */
+		command |= ADS_PD10_REF_ON;
 	}
 
+	/* Enable ADC in every case */
+	command |= ADS_PD10_ADC_ON;
+
 	/* take sample */
 	req->command = (u8) command;
 	req->xfer[2].tx_buf = &req->command;
@@ -416,7 +419,7 @@ name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \
 { \
 	struct ads7846 *ts = dev_get_drvdata(dev); \
 	ssize_t v = ads7846_read12_ser(dev, \
-			READ_12BIT_SER(var) | ADS_PD10_ALL_ON); \
+			READ_12BIT_SER(var)); \
 	if (v < 0) \
 		return v; \
 	return sprintf(buf, "%u\n", adjust(ts, v)); \
@@ -509,6 +512,7 @@ static int ads784x_hwmon_register(struct spi_device *spi, struct ads7846 *ts)
 		if (!ts->vref_mv) {
 			dev_dbg(&spi->dev, "assuming 2.5V internal vREF\n");
 			ts->vref_mv = 2500;
+			ts->use_internal = true;
 		}
 		break;
 	case 7845:
@@ -969,6 +973,13 @@ static int __devinit ads7846_setup_pendown(struct spi_device *spi, struct ads784
 				pdata->gpio_pendown);
 			return err;
 		}
+		err = gpio_direction_input(pdata->gpio_pendown);
+		if (err) {
+			dev_err(&spi->dev, "failed to setup pendown GPIO%d\n",
+				pdata->gpio_pendown);
+			gpio_free(pdata->gpio_pendown);
+			return err;
+		}
 
 		ts->gpio_pendown = pdata->gpio_pendown;
 
@@ -1340,8 +1351,7 @@ static int __devinit ads7846_probe(struct spi_device *spi)
 	if (ts->model == 7845)
 		ads7845_read12_ser(&spi->dev, PWRDOWN);
 	else
-		(void) ads7846_read12_ser(&spi->dev,
-				READ_12BIT_SER(vaux) | ADS_PD10_ALL_ON);
+		(void) ads7846_read12_ser(&spi->dev, READ_12BIT_SER(vaux));
 
 	err = sysfs_create_group(&spi->dev.kobj, &ads784x_attr_group);
 	if (err)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 4012436633b..1e61387c73c 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -17,7 +17,7 @@
 #include <linux/firmware.h>
 #include <linux/i2c.h>
 #include <linux/i2c/atmel_mxt_ts.h>
-#include <linux/input.h>
+#include <linux/input/mt.h>
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 
@@ -196,9 +196,12 @@
 #define MXT_PRESS		(1 << 6)
 #define MXT_DETECT		(1 << 7)
 
+/* Touch orient bits */
+#define MXT_XY_SWITCH		(1 << 0)
+#define MXT_X_INVERT		(1 << 1)
+#define MXT_Y_INVERT		(1 << 2)
+
 /* Touchscreen absolute values */
-#define MXT_MAX_XC		0x3ff
-#define MXT_MAX_YC		0x3ff
 #define MXT_MAX_AREA		0xff
 
 #define MXT_MAX_FINGER		10
@@ -246,6 +249,8 @@ struct mxt_data {
 	struct mxt_info info;
 	struct mxt_finger finger[MXT_MAX_FINGER];
 	unsigned int irq;
+	unsigned int max_x;
+	unsigned int max_y;
 };
 
 static bool mxt_object_readable(unsigned int type)
@@ -499,19 +504,21 @@ static void mxt_input_report(struct mxt_data *data, int single_id)
 		if (!finger[id].status)
 			continue;
 
-		input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR,
-				finger[id].status != MXT_RELEASE ?
-				finger[id].area : 0);
-		input_report_abs(input_dev, ABS_MT_POSITION_X,
-				finger[id].x);
-		input_report_abs(input_dev, ABS_MT_POSITION_Y,
-				finger[id].y);
-		input_mt_sync(input_dev);
+		input_mt_slot(input_dev, id);
+		input_mt_report_slot_state(input_dev, MT_TOOL_FINGER,
+				finger[id].status != MXT_RELEASE);
 
-		if (finger[id].status == MXT_RELEASE)
-			finger[id].status = 0;
-		else
+		if (finger[id].status != MXT_RELEASE) {
 			finger_num++;
+			input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR,
+					finger[id].area);
+			input_report_abs(input_dev, ABS_MT_POSITION_X,
+					finger[id].x);
+			input_report_abs(input_dev, ABS_MT_POSITION_Y,
+					finger[id].y);
+		} else {
+			finger[id].status = 0;
+		}
 	}
 
 	input_report_key(input_dev, BTN_TOUCH, finger_num > 0);
@@ -549,8 +556,13 @@ static void mxt_input_touchevent(struct mxt_data *data,
 	if (!(status & (MXT_PRESS | MXT_MOVE)))
 		return;
 
-	x = (message->message[1] << 2) | ((message->message[3] & ~0x3f) >> 6);
-	y = (message->message[2] << 2) | ((message->message[3] & ~0xf3) >> 2);
+	x = (message->message[1] << 4) | ((message->message[3] >> 4) & 0xf);
+	y = (message->message[2] << 4) | ((message->message[3] & 0xf));
+	if (data->max_x < 1024)
+		x = x >> 2;
+	if (data->max_y < 1024)
+		y = y >> 2;
+
 	area = message->message[4];
 
 	dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id,
@@ -804,10 +816,6 @@ static int mxt_initialize(struct mxt_data *data)
 	if (error)
 		return error;
 
-	error = mxt_make_highchg(data);
-	if (error)
-		return error;
-
 	mxt_handle_pdata(data);
 
 	/* Backup to memory */
@@ -845,6 +853,20 @@ static int mxt_initialize(struct mxt_data *data)
 	return 0;
 }
 
+static void mxt_calc_resolution(struct mxt_data *data)
+{
+	unsigned int max_x = data->pdata->x_size - 1;
+	unsigned int max_y = data->pdata->y_size - 1;
+
+	if (data->pdata->orient & MXT_XY_SWITCH) {
+		data->max_x = max_y;
+		data->max_y = max_x;
+	} else {
+		data->max_x = max_x;
+		data->max_y = max_y;
+	}
+}
+
 static ssize_t mxt_object_show(struct device *dev,
 				    struct device_attribute *attr, char *buf)
 {
@@ -981,6 +1003,10 @@ static ssize_t mxt_update_fw_store(struct device *dev,
 
 	enable_irq(data->irq);
 
+	error = mxt_make_highchg(data);
+	if (error)
+		return error;
+
 	return count;
 }
 
@@ -1052,31 +1078,33 @@ static int __devinit mxt_probe(struct i2c_client *client,
 	input_dev->open = mxt_input_open;
 	input_dev->close = mxt_input_close;
 
+	data->client = client;
+	data->input_dev = input_dev;
+	data->pdata = pdata;
+	data->irq = client->irq;
+
+	mxt_calc_resolution(data);
+
 	__set_bit(EV_ABS, input_dev->evbit);
 	__set_bit(EV_KEY, input_dev->evbit);
 	__set_bit(BTN_TOUCH, input_dev->keybit);
 
 	/* For single touch */
 	input_set_abs_params(input_dev, ABS_X,
-			     0, MXT_MAX_XC, 0, 0);
+			     0, data->max_x, 0, 0);
 	input_set_abs_params(input_dev, ABS_Y,
-			     0, MXT_MAX_YC, 0, 0);
+			     0, data->max_y, 0, 0);
 
 	/* For multi touch */
+	input_mt_init_slots(input_dev, MXT_MAX_FINGER);
 	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
 			     0, MXT_MAX_AREA, 0, 0);
 	input_set_abs_params(input_dev, ABS_MT_POSITION_X,
-			     0, MXT_MAX_XC, 0, 0);
+			     0, data->max_x, 0, 0);
 	input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
-			     0, MXT_MAX_YC, 0, 0);
+			     0, data->max_y, 0, 0);
 
 	input_set_drvdata(input_dev, data);
-
-	data->client = client;
-	data->input_dev = input_dev;
-	data->pdata = pdata;
-	data->irq = client->irq;
-
 	i2c_set_clientdata(client, data);
 
 	error = mxt_initialize(data);
@@ -1090,6 +1118,10 @@ static int __devinit mxt_probe(struct i2c_client *client,
 		goto err_free_object;
 	}
 
+	error = mxt_make_highchg(data);
+	if (error)
+		goto err_free_irq;
+
 	error = input_register_device(input_dev);
 	if (error)
 		goto err_free_irq;
diff --git a/drivers/input/touchscreen/atmel_tsadcc.c b/drivers/input/touchscreen/atmel_tsadcc.c
index 3d9b5166ebe..432c69be6ac 100644
--- a/drivers/input/touchscreen/atmel_tsadcc.c
+++ b/drivers/input/touchscreen/atmel_tsadcc.c
@@ -317,7 +317,7 @@ err_unmap_regs:
 err_release_mem:
 	release_mem_region(res->start, resource_size(res));
 err_free_dev:
-	input_free_device(ts_dev->input);
+	input_free_device(input_dev);
 err_free_mem:
 	kfree(ts_dev);
 	return err;
diff --git a/drivers/input/touchscreen/h3600_ts_input.c b/drivers/input/touchscreen/h3600_ts_input.c
index 45f93d0f559..211811ae552 100644
--- a/drivers/input/touchscreen/h3600_ts_input.c
+++ b/drivers/input/touchscreen/h3600_ts_input.c
@@ -396,14 +396,14 @@ static int h3600ts_connect(struct serio *serio, struct serio_driver *drv)
 	set_GPIO_IRQ_edge(GPIO_BITSY_NPOWER_BUTTON, GPIO_RISING_EDGE);
 
 	if (request_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, action_button_handler,
-			IRQF_SHARED | IRQF_DISABLED, "h3600_action", &ts->dev)) {
+			IRQF_SHARED | IRQF_DISABLED, "h3600_action", ts->dev)) {
 		printk(KERN_ERR "h3600ts.c: Could not allocate Action Button IRQ!\n");
 		err = -EBUSY;
 		goto fail1;
 	}
 
 	if (request_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, npower_button_handler,
-			IRQF_SHARED | IRQF_DISABLED, "h3600_suspend", &ts->dev)) {
+			IRQF_SHARED | IRQF_DISABLED, "h3600_suspend", ts->dev)) {
 		printk(KERN_ERR "h3600ts.c: Could not allocate Power Button IRQ!\n");
 		err = -EBUSY;
 		goto fail2;
@@ -439,8 +439,8 @@ static void h3600ts_disconnect(struct serio *serio)
 {
 	struct h3600_dev *ts = serio_get_drvdata(serio);
 
-	free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, &ts->dev);
-	free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, &ts->dev);
+	free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, ts->dev);
+	free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts->dev);
 	input_get_device(ts->dev);
 	input_unregister_device(ts->dev);
 	serio_close(serio);
diff --git a/drivers/input/touchscreen/max11801_ts.c b/drivers/input/touchscreen/max11801_ts.c
new file mode 100644
index 00000000000..4f2713d9279
--- /dev/null
+++ b/drivers/input/touchscreen/max11801_ts.c
@@ -0,0 +1,272 @@
+/*
+ * Driver for MAXI MAX11801 - A Resistive touch screen controller with
+ * i2c interface
+ *
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ * Author: Zhang Jiejing <jiejing.zhang@freescale.com>
+ *
+ * Based on mcs5000_ts.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ */
+
+/*
+ * This driver aims to support the series of MAXI touch chips max11801
+ * through max11803. The main difference between these 4 chips can be
+ * found in the table below:
+ * -----------------------------------------------------
+ * | CHIP     |  AUTO MODE SUPPORT(FIFO) | INTERFACE    |
+ * |----------------------------------------------------|
+ * | max11800 |  YES                     |   SPI        |
+ * | max11801 |  YES                     |   I2C        |
+ * | max11802 |  NO                      |   SPI        |
+ * | max11803 |  NO                      |   I2C        |
+ * ------------------------------------------------------
+ *
+ * Currently, this driver only supports max11801.
+ *
+ * Data Sheet:
+ * http://www.maxim-ic.com/datasheet/index.mvp/id/5943
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+
+/* Register Address define */
+#define GENERNAL_STATUS_REG		0x00
+#define GENERNAL_CONF_REG		0x01
+#define MESURE_RES_CONF_REG		0x02
+#define MESURE_AVER_CONF_REG		0x03
+#define ADC_SAMPLE_TIME_CONF_REG	0x04
+#define PANEL_SETUPTIME_CONF_REG	0x05
+#define DELAY_CONVERSION_CONF_REG	0x06
+#define TOUCH_DETECT_PULLUP_CONF_REG	0x07
+#define AUTO_MODE_TIME_CONF_REG		0x08 /* only for max11800/max11801 */
+#define APERTURE_CONF_REG		0x09 /* only for max11800/max11801 */
+#define AUX_MESURE_CONF_REG		0x0a
+#define OP_MODE_CONF_REG		0x0b
+
+/* FIFO is found only in max11800 and max11801 */
+#define FIFO_RD_CMD			(0x50 << 1)
+#define MAX11801_FIFO_INT		(1 << 2)
+#define MAX11801_FIFO_OVERFLOW		(1 << 3)
+
+#define XY_BUFSIZE			4
+#define XY_BUF_OFFSET			4
+
+#define MAX11801_MAX_X			0xfff
+#define MAX11801_MAX_Y			0xfff
+
+#define MEASURE_TAG_OFFSET		2
+#define MEASURE_TAG_MASK		(3 << MEASURE_TAG_OFFSET)
+#define EVENT_TAG_OFFSET		0
+#define EVENT_TAG_MASK			(3 << EVENT_TAG_OFFSET)
+#define MEASURE_X_TAG			(0 << MEASURE_TAG_OFFSET)
+#define MEASURE_Y_TAG			(1 << MEASURE_TAG_OFFSET)
+
+/* These are the state of touch event state machine */
+enum {
+	EVENT_INIT,
+	EVENT_MIDDLE,
+	EVENT_RELEASE,
+	EVENT_FIFO_END
+};
+
+struct max11801_data {
+	struct i2c_client		*client;
+	struct input_dev		*input_dev;
+};
+
+static u8 read_register(struct i2c_client *client, int addr)
+{
+	/* XXX: The chip ignores LSB of register address */
+	return i2c_smbus_read_byte_data(client, addr << 1);
+}
+
+static int max11801_write_reg(struct i2c_client *client, int addr, int data)
+{
+	/* XXX: The chip ignores LSB of register address */
+	return i2c_smbus_write_byte_data(client, addr << 1, data);
+}
+
+static irqreturn_t max11801_ts_interrupt(int irq, void *dev_id)
+{
+	struct max11801_data *data = dev_id;
+	struct i2c_client *client = data->client;
+	int status, i, ret;
+	u8 buf[XY_BUFSIZE];
+	int x = -1;
+	int y = -1;
+
+	status = read_register(data->client, GENERNAL_STATUS_REG);
+
+	if (status & (MAX11801_FIFO_INT | MAX11801_FIFO_OVERFLOW)) {
+		status = read_register(data->client, GENERNAL_STATUS_REG);
+
+		ret = i2c_smbus_read_i2c_block_data(client, FIFO_RD_CMD,
+						    XY_BUFSIZE, buf);
+
+		/*
+		 * We should get 4 bytes buffer that contains X,Y
+		 * and event tag
+		 */
+		if (ret < XY_BUFSIZE)
+			goto out;
+
+		for (i = 0; i < XY_BUFSIZE; i += XY_BUFSIZE / 2) {
+			if ((buf[i + 1] & MEASURE_TAG_MASK) == MEASURE_X_TAG)
+				x = (buf[i] << XY_BUF_OFFSET) +
+				    (buf[i + 1] >> XY_BUF_OFFSET);
+			else if ((buf[i + 1] & MEASURE_TAG_MASK) == MEASURE_Y_TAG)
+				y = (buf[i] << XY_BUF_OFFSET) +
+				    (buf[i + 1] >> XY_BUF_OFFSET);
+		}
+
+		if ((buf[1] & EVENT_TAG_MASK) != (buf[3] & EVENT_TAG_MASK))
+			goto out;
+
+		switch (buf[1] & EVENT_TAG_MASK) {
+		case EVENT_INIT:
+			/* fall through */
+		case EVENT_MIDDLE:
+			input_report_abs(data->input_dev, ABS_X, x);
+			input_report_abs(data->input_dev, ABS_Y, y);
+			input_event(data->input_dev, EV_KEY, BTN_TOUCH, 1);
+			input_sync(data->input_dev);
+			break;
+
+		case EVENT_RELEASE:
+			input_event(data->input_dev, EV_KEY, BTN_TOUCH, 0);
+			input_sync(data->input_dev);
+			break;
+
+		case EVENT_FIFO_END:
+			break;
+		}
+	}
+out:
+	return IRQ_HANDLED;
+}
+
+static void __devinit max11801_ts_phy_init(struct max11801_data *data)
+{
+	struct i2c_client *client = data->client;
+
+	/* Average X,Y, take 16 samples, average eight media sample */
+	max11801_write_reg(client, MESURE_AVER_CONF_REG, 0xff);
+	/* X,Y panel setup time set to 20us */
+	max11801_write_reg(client, PANEL_SETUPTIME_CONF_REG, 0x11);
+	/* Rough pullup time (2uS), Fine pullup time (10us)  */
+	max11801_write_reg(client, TOUCH_DETECT_PULLUP_CONF_REG, 0x10);
+	/* Auto mode init period = 5ms , scan period = 5ms*/
+	max11801_write_reg(client, AUTO_MODE_TIME_CONF_REG, 0xaa);
+	/* Aperture X,Y set to +- 4LSB */
+	max11801_write_reg(client, APERTURE_CONF_REG, 0x33);
+	/* Enable Power, enable Automode, enable Aperture, enable Average X,Y */
+	max11801_write_reg(client, OP_MODE_CONF_REG, 0x36);
+}
+
+static int __devinit max11801_ts_probe(struct i2c_client *client,
+				       const struct i2c_device_id *id)
+{
+	struct max11801_data *data;
+	struct input_dev *input_dev;
+	int error;
+
+	data = kzalloc(sizeof(struct max11801_data), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!data || !input_dev) {
+		dev_err(&client->dev, "Failed to allocate memory\n");
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	data->client = client;
+	data->input_dev = input_dev;
+
+	input_dev->name = "max11801_ts";
+	input_dev->id.bustype = BUS_I2C;
+	input_dev->dev.parent = &client->dev;
+
+	__set_bit(EV_ABS, input_dev->evbit);
+	__set_bit(EV_KEY, input_dev->evbit);
+	__set_bit(BTN_TOUCH, input_dev->keybit);
+	input_set_abs_params(input_dev, ABS_X, 0, MAX11801_MAX_X, 0, 0);
+	input_set_abs_params(input_dev, ABS_Y, 0, MAX11801_MAX_Y, 0, 0);
+	input_set_drvdata(input_dev, data);
+
+	max11801_ts_phy_init(data);
+
+	error = request_threaded_irq(client->irq, NULL, max11801_ts_interrupt,
+				     IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+				     "max11801_ts", data);
+	if (error) {
+		dev_err(&client->dev, "Failed to register interrupt\n");
+		goto err_free_mem;
+	}
+
+	error = input_register_device(data->input_dev);
+	if (error)
+		goto err_free_irq;
+
+	i2c_set_clientdata(client, data);
+	return 0;
+
+err_free_irq:
+	free_irq(client->irq, data);
+err_free_mem:
+	input_free_device(input_dev);
+	kfree(data);
+	return error;
+}
+
+static __devexit int max11801_ts_remove(struct i2c_client *client)
+{
+	struct max11801_data *data = i2c_get_clientdata(client);
+
+	free_irq(client->irq, data);
+	input_unregister_device(data->input_dev);
+	kfree(data);
+
+	return 0;
+}
+
+static const struct i2c_device_id max11801_ts_id[] = {
+	{"max11801", 0},
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, max11801_ts_id);
+
+static struct i2c_driver max11801_ts_driver = {
+	.driver = {
+		.name	= "max11801_ts",
+		.owner	= THIS_MODULE,
+	},
+	.id_table	= max11801_ts_id,
+	.probe		= max11801_ts_probe,
+	.remove		= __devexit_p(max11801_ts_remove),
+};
+
+static int __init max11801_ts_init(void)
+{
+	return i2c_add_driver(&max11801_ts_driver);
+}
+
+static void __exit max11801_ts_exit(void)
+{
+	i2c_del_driver(&max11801_ts_driver);
+}
+
+module_init(max11801_ts_init);
+module_exit(max11801_ts_exit);
+
+MODULE_AUTHOR("Zhang Jiejing <jiejing.zhang@freescale.com>");
+MODULE_DESCRIPTION("Touchscreen driver for MAXI MAX11801 controller");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index 80467f26233..fadc11545b1 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -27,9 +27,6 @@
 #include <linux/i2c.h>
 #include <linux/i2c/tsc2007.h>
 
-#define TS_POLL_DELAY			1 /* ms delay between samples */
-#define TS_POLL_PERIOD			1 /* ms delay between samples */
-
 #define TSC2007_MEASURE_TEMP0		(0x0 << 4)
 #define TSC2007_MEASURE_AUX		(0x2 << 4)
 #define TSC2007_MEASURE_TEMP1		(0x4 << 4)
@@ -75,6 +72,9 @@ struct tsc2007 {
 
 	u16			model;
 	u16			x_plate_ohms;
+	u16			max_rt;
+	unsigned long		poll_delay;
+	unsigned long		poll_period;
 
 	bool			pendown;
 	int			irq;
@@ -156,6 +156,7 @@ static void tsc2007_work(struct work_struct *work)
 {
 	struct tsc2007 *ts =
 		container_of(to_delayed_work(work), struct tsc2007, work);
+	bool debounced = false;
 	struct ts_event tc;
 	u32 rt;
 
@@ -184,13 +185,14 @@ static void tsc2007_work(struct work_struct *work)
 	tsc2007_read_values(ts, &tc);
 
 	rt = tsc2007_calculate_pressure(ts, &tc);
-	if (rt > MAX_12BIT) {
+	if (rt > ts->max_rt) {
 		/*
 		 * Sample found inconsistent by debouncing or pressure is
 		 * beyond the maximum. Don't report it to user space,
 		 * repeat at least once more the measurement.
 		 */
 		dev_dbg(&ts->client->dev, "ignored pressure %d\n", rt);
+		debounced = true;
 		goto out;
 
 	}
@@ -225,9 +227,9 @@ static void tsc2007_work(struct work_struct *work)
 	}
 
  out:
-	if (ts->pendown)
+	if (ts->pendown || debounced)
 		schedule_delayed_work(&ts->work,
-				      msecs_to_jiffies(TS_POLL_PERIOD));
+				      msecs_to_jiffies(ts->poll_period));
 	else
 		enable_irq(ts->irq);
 }
@@ -239,7 +241,7 @@ static irqreturn_t tsc2007_irq(int irq, void *handle)
 	if (!ts->get_pendown_state || likely(ts->get_pendown_state())) {
 		disable_irq_nosync(ts->irq);
 		schedule_delayed_work(&ts->work,
-				      msecs_to_jiffies(TS_POLL_DELAY));
+				      msecs_to_jiffies(ts->poll_delay));
 	}
 
 	if (ts->clear_penirq)
@@ -292,6 +294,9 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
 
 	ts->model             = pdata->model;
 	ts->x_plate_ohms      = pdata->x_plate_ohms;
+	ts->max_rt            = pdata->max_rt ? : MAX_12BIT;
+	ts->poll_delay        = pdata->poll_delay ? : 1;
+	ts->poll_period       = pdata->poll_period ? : 1;
 	ts->get_pendown_state = pdata->get_pendown_state;
 	ts->clear_penirq      = pdata->clear_penirq;
 
@@ -305,9 +310,10 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
 	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
 	input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
 
-	input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, 0, 0);
-	input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, 0, 0);
-	input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_12BIT, 0, 0);
+	input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, pdata->fuzzx, 0);
+	input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, pdata->fuzzy, 0);
+	input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_12BIT,
+			pdata->fuzzz, 0);
 
 	if (pdata->init_platform_hw)
 		pdata->init_platform_hw();