diff options
author | David Vrabel <david.vrabel@csr.com> | 2009-01-22 19:12:32 +0000 |
---|---|---|
committer | David Vrabel <david.vrabel@csr.com> | 2009-01-22 19:12:32 +0000 |
commit | dff243f7cb3a2ebbb09093066c1bc4a90ff5b3a4 (patch) | |
tree | 1c63e7c2f879cd322ca785671b74b4ff796dd24c /drivers/leds | |
parent | a5e6ced58d423cb09c4fc0087dcfdb0b5deb5e1c (diff) | |
parent | f3b8436ad9a8ad36b3c9fa1fe030c7f38e5d3d0b (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
Diffstat (limited to 'drivers/leds')
-rw-r--r-- | drivers/leds/Kconfig | 22 | ||||
-rw-r--r-- | drivers/leds/Makefile | 3 | ||||
-rw-r--r-- | drivers/leds/led-class.c | 24 | ||||
-rw-r--r-- | drivers/leds/leds-alix2.c | 181 | ||||
-rw-r--r-- | drivers/leds/leds-ams-delta.c | 33 | ||||
-rw-r--r-- | drivers/leds/leds-clevo-mail.c | 21 | ||||
-rw-r--r-- | drivers/leds/leds-fsg.c | 37 | ||||
-rw-r--r-- | drivers/leds/leds-gpio.c | 36 | ||||
-rw-r--r-- | drivers/leds/leds-hp-disk.c | 155 | ||||
-rw-r--r-- | drivers/leds/leds-hp6xx.c | 22 | ||||
-rw-r--r-- | drivers/leds/leds-net48xx.c | 21 | ||||
-rw-r--r-- | drivers/leds/leds-pca9532.c | 77 | ||||
-rw-r--r-- | drivers/leds/leds-s3c24xx.c | 25 | ||||
-rw-r--r-- | drivers/leds/leds-wm8350.c | 311 | ||||
-rw-r--r-- | drivers/leds/leds-wrap.c | 27 | ||||
-rw-r--r-- | drivers/leds/ledtrig-timer.c | 5 |
16 files changed, 612 insertions, 388 deletions
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index e7fb7d2fcbf..742713611bc 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -63,6 +63,12 @@ config LEDS_WRAP help This option enables support for the PCEngines WRAP programmable LEDs. +config LEDS_ALIX2 + tristate "LED Support for ALIX.2 and ALIX.3 series" + depends on LEDS_CLASS && X86 && EXPERIMENTAL + help + This option enables support for the PCEngines ALIX.2 and ALIX.3 LEDs. + config LEDS_H1940 tristate "LED Support for iPAQ H1940 device" depends on LEDS_CLASS && ARCH_H1940 @@ -77,7 +83,7 @@ config LEDS_COBALT_QUBE config LEDS_COBALT_RAQ bool "LED Support for the Cobalt Raq series" - depends on LEDS_CLASS && MIPS_COBALT + depends on LEDS_CLASS=y && MIPS_COBALT select LEDS_TRIGGERS help This option enables support for the Cobalt Raq series LEDs. @@ -113,13 +119,6 @@ config LEDS_GPIO outputs. To be useful the particular board must have LEDs and they must be connected to the GPIO lines. -config LEDS_HP_DISK - tristate "LED Support for disk protection LED on HP notebooks" - depends on LEDS_CLASS && ACPI - help - This option enable support for disk protection LED, found on - newer HP notebooks. - config LEDS_CLEVO_MAIL tristate "Mail LED on Clevo notebook (EXPERIMENTAL)" depends on LEDS_CLASS && X86 && SERIO_I8042 && DMI && EXPERIMENTAL @@ -158,6 +157,13 @@ config LEDS_PCA955X LED driver chips accessed via the I2C bus. Supported devices include PCA9550, PCA9551, PCA9552, and PCA9553. +config LEDS_WM8350 + tristate "LED Support for WM8350 AudioPlus PMIC" + depends on LEDS_CLASS && MFD_WM8350 + help + This option enables support for LEDs driven by the Wolfson + Microelectronics WM8350 AudioPlus PMIC. + config LEDS_DA903X tristate "LED Support for DA9030/DA9034 PMIC" depends on LEDS_CLASS && PMIC_DA903X diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index e1967a29850..9d76f0f160a 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -11,6 +11,7 @@ obj-$(CONFIG_LEDS_S3C24XX) += leds-s3c24xx.o obj-$(CONFIG_LEDS_AMS_DELTA) += leds-ams-delta.o obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o +obj-$(CONFIG_LEDS_ALIX2) += leds-alix2.o obj-$(CONFIG_LEDS_H1940) += leds-h1940.o obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o @@ -22,7 +23,7 @@ obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o obj-$(CONFIG_LEDS_FSG) += leds-fsg.o obj-$(CONFIG_LEDS_PCA955X) += leds-pca955x.o obj-$(CONFIG_LEDS_DA903X) += leds-da903x.o -obj-$(CONFIG_LEDS_HP_DISK) += leds-hp-disk.o +obj-$(CONFIG_LEDS_WM8350) += leds-wm8350.o # LED Triggers obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c index 6c4a326176d..52f82e3ea13 100644 --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -91,9 +91,29 @@ void led_classdev_resume(struct led_classdev *led_cdev) } EXPORT_SYMBOL_GPL(led_classdev_resume); +static int led_suspend(struct device *dev, pm_message_t state) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + + if (led_cdev->flags & LED_CORE_SUSPENDRESUME) + led_classdev_suspend(led_cdev); + + return 0; +} + +static int led_resume(struct device *dev) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + + if (led_cdev->flags & LED_CORE_SUSPENDRESUME) + led_classdev_resume(led_cdev); + + return 0; +} + /** * led_classdev_register - register a new object of led_classdev class. - * @dev: The device to register. + * @parent: The device to register. * @led_cdev: the led_classdev structure for this device. */ int led_classdev_register(struct device *parent, struct led_classdev *led_cdev) @@ -174,6 +194,8 @@ static int __init leds_init(void) leds_class = class_create(THIS_MODULE, "leds"); if (IS_ERR(leds_class)) return PTR_ERR(leds_class); + leds_class->suspend = led_suspend; + leds_class->resume = led_resume; return 0; } diff --git a/drivers/leds/leds-alix2.c b/drivers/leds/leds-alix2.c new file mode 100644 index 00000000000..ddbd7730dfc --- /dev/null +++ b/drivers/leds/leds-alix2.c @@ -0,0 +1,181 @@ +/* + * LEDs driver for PCEngines ALIX.2 and ALIX.3 + * + * Copyright (C) 2008 Constantin Baranov <const@mimas.ru> + */ + +#include <linux/err.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/leds.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/string.h> + +static int force = 0; +module_param(force, bool, 0444); +MODULE_PARM_DESC(force, "Assume system has ALIX.2 style LEDs"); + +struct alix_led { + struct led_classdev cdev; + unsigned short port; + unsigned int on_value; + unsigned int off_value; +}; + +static void alix_led_set(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + struct alix_led *led_dev = + container_of(led_cdev, struct alix_led, cdev); + + if (brightness) + outl(led_dev->on_value, led_dev->port); + else + outl(led_dev->off_value, led_dev->port); +} + +static struct alix_led alix_leds[] = { + { + .cdev = { + .name = "alix:1", + .brightness_set = alix_led_set, + }, + .port = 0x6100, + .on_value = 1 << 22, + .off_value = 1 << 6, + }, + { + .cdev = { + .name = "alix:2", + .brightness_set = alix_led_set, + }, + .port = 0x6180, + .on_value = 1 << 25, + .off_value = 1 << 9, + }, + { + .cdev = { + .name = "alix:3", + .brightness_set = alix_led_set, + }, + .port = 0x6180, + .on_value = 1 << 27, + .off_value = 1 << 11, + }, +}; + +static int __init alix_led_probe(struct platform_device *pdev) +{ + int i; + int ret; + + for (i = 0; i < ARRAY_SIZE(alix_leds); i++) { + alix_leds[i].cdev.flags |= LED_CORE_SUSPENDRESUME; + ret = led_classdev_register(&pdev->dev, &alix_leds[i].cdev); + if (ret < 0) + goto fail; + } + return 0; + +fail: + while (--i >= 0) + led_classdev_unregister(&alix_leds[i].cdev); + return ret; +} + +static int alix_led_remove(struct platform_device *pdev) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(alix_leds); i++) + led_classdev_unregister(&alix_leds[i].cdev); + return 0; +} + +static struct platform_driver alix_led_driver = { + .remove = alix_led_remove, + .driver = { + .name = KBUILD_MODNAME, + .owner = THIS_MODULE, + }, +}; + +static int __init alix_present(void) +{ + const unsigned long bios_phys = 0x000f0000; + const size_t bios_len = 0x00010000; + const char alix_sig[] = "PC Engines ALIX."; + const size_t alix_sig_len = sizeof(alix_sig) - 1; + + const char *bios_virt; + const char *scan_end; + const char *p; + int ret = 0; + + if (force) { + printk(KERN_NOTICE "%s: forced to skip BIOS test, " + "assume system has ALIX.2 style LEDs\n", + KBUILD_MODNAME); + ret = 1; + goto out; + } + + bios_virt = phys_to_virt(bios_phys); + scan_end = bios_virt + bios_len - (alix_sig_len + 2); + for (p = bios_virt; p < scan_end; p++) { + const char *tail; + + if (memcmp(p, alix_sig, alix_sig_len) != 0) { + continue; + } + + tail = p + alix_sig_len; + if ((tail[0] == '2' || tail[0] == '3') && tail[1] == '\0') { + printk(KERN_INFO + "%s: system is recognized as \"%s\"\n", + KBUILD_MODNAME, p); + ret = 1; + break; + } + } + +out: + return ret; +} + +static struct platform_device *pdev; + +static int __init alix_led_init(void) +{ + int ret; + + if (!alix_present()) { + ret = -ENODEV; + goto out; + } + + pdev = platform_device_register_simple(KBUILD_MODNAME, -1, NULL, 0); + if (!IS_ERR(pdev)) { + ret = platform_driver_probe(&alix_led_driver, alix_led_probe); + if (ret) + platform_device_unregister(pdev); + } else + ret = PTR_ERR(pdev); + +out: + return ret; +} + +static void __exit alix_led_exit(void) +{ + platform_device_unregister(pdev); + platform_driver_unregister(&alix_led_driver); +} + +module_init(alix_led_init); +module_exit(alix_led_exit); + +MODULE_AUTHOR("Constantin Baranov <const@mimas.ru>"); +MODULE_DESCRIPTION("PCEngines ALIX.2 and ALIX.3 LED driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/leds/leds-ams-delta.c b/drivers/leds/leds-ams-delta.c index 1bd590bb3a6..446050759b4 100644 --- a/drivers/leds/leds-ams-delta.c +++ b/drivers/leds/leds-ams-delta.c @@ -79,37 +79,12 @@ static struct ams_delta_led ams_delta_leds[] = { }, }; -#ifdef CONFIG_PM -static int ams_delta_led_suspend(struct platform_device *dev, - pm_message_t state) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(ams_delta_leds); i++) - led_classdev_suspend(&ams_delta_leds[i].cdev); - - return 0; -} - -static int ams_delta_led_resume(struct platform_device *dev) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(ams_delta_leds); i++) - led_classdev_resume(&ams_delta_leds[i].cdev); - - return 0; -} -#else -#define ams_delta_led_suspend NULL -#define ams_delta_led_resume NULL -#endif - static int ams_delta_led_probe(struct platform_device *pdev) { int i, ret; for (i = 0; i < ARRAY_SIZE(ams_delta_leds); i++) { + ams_delta_leds[i].cdev.flags |= LED_CORE_SUSPENDRESUME; ret = led_classdev_register(&pdev->dev, &ams_delta_leds[i].cdev); if (ret < 0) @@ -127,7 +102,7 @@ static int ams_delta_led_remove(struct platform_device *pdev) { int i; - for (i = 0; i < ARRAY_SIZE(ams_delta_leds); i--) + for (i = 0; i < ARRAY_SIZE(ams_delta_leds); i++) led_classdev_unregister(&ams_delta_leds[i].cdev); return 0; @@ -136,8 +111,6 @@ static int ams_delta_led_remove(struct platform_device *pdev) static struct platform_driver ams_delta_led_driver = { .probe = ams_delta_led_probe, .remove = ams_delta_led_remove, - .suspend = ams_delta_led_suspend, - .resume = ams_delta_led_resume, .driver = { .name = "ams-delta-led", .owner = THIS_MODULE, @@ -151,7 +124,7 @@ static int __init ams_delta_led_init(void) static void __exit ams_delta_led_exit(void) { - return platform_driver_unregister(&ams_delta_led_driver); + platform_driver_unregister(&ams_delta_led_driver); } module_init(ams_delta_led_init); diff --git a/drivers/leds/leds-clevo-mail.c b/drivers/leds/leds-clevo-mail.c index eb3415e88f4..1813c84ea5f 100644 --- a/drivers/leds/leds-clevo-mail.c +++ b/drivers/leds/leds-clevo-mail.c @@ -142,6 +142,7 @@ static struct led_classdev clevo_mail_led = { .name = "clevo::mail", .brightness_set = clevo_mail_led_set, .blink_set = clevo_mail_led_blink, + .flags = LED_CORE_SUSPENDRESUME, }; static int __init clevo_mail_led_probe(struct platform_device *pdev) @@ -155,29 +156,9 @@ static int clevo_mail_led_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM -static int clevo_mail_led_suspend(struct platform_device *dev, - pm_message_t state) -{ - led_classdev_suspend(&clevo_mail_led); - return 0; -} - -static int clevo_mail_led_resume(struct platform_device *dev) -{ - led_classdev_resume(&clevo_mail_led); - return 0; -} -#else -#define clevo_mail_led_suspend NULL -#define clevo_mail_led_resume NULL -#endif - static struct platform_driver clevo_mail_led_driver = { .probe = clevo_mail_led_probe, .remove = clevo_mail_led_remove, - .suspend = clevo_mail_led_suspend, - .resume = clevo_mail_led_resume, .driver = { .name = KBUILD_MODNAME, .owner = THIS_MODULE, diff --git a/drivers/leds/leds-fsg.c b/drivers/leds/leds-fsg.c index 34935155c1c..5f7c9c5c09b 100644 --- a/drivers/leds/leds-fsg.c +++ b/drivers/leds/leds-fsg.c @@ -99,64 +99,43 @@ static void fsg_led_ring_set(struct led_classdev *led_cdev, } - static struct led_classdev fsg_wlan_led = { .name = "fsg:blue:wlan", .brightness_set = fsg_led_wlan_set, + .flags = LED_CORE_SUSPENDRESUME, }; static struct led_classdev fsg_wan_led = { .name = "fsg:blue:wan", .brightness_set = fsg_led_wan_set, + .flags = LED_CORE_SUSPENDRESUME, }; static struct led_classdev fsg_sata_led = { .name = "fsg:blue:sata", .brightness_set = fsg_led_sata_set, + .flags = LED_CORE_SUSPENDRESUME, }; static struct led_classdev fsg_usb_led = { .name = "fsg:blue:usb", .brightness_set = fsg_led_usb_set, + .flags = LED_CORE_SUSPENDRESUME, }; static struct led_classdev fsg_sync_led = { .name = "fsg:blue:sync", .brightness_set = fsg_led_sync_set, + .flags = LED_CORE_SUSPENDRESUME, }; static struct led_classdev fsg_ring_led = { .name = "fsg:blue:ring", .brightness_set = fsg_led_ring_set, + .flags = LED_CORE_SUSPENDRESUME, }; - -#ifdef CONFIG_PM -static int fsg_led_suspend(struct platform_device *dev, pm_message_t state) -{ - led_classdev_suspend(&fsg_wlan_led); - led_classdev_suspend(&fsg_wan_led); - led_classdev_suspend(&fsg_sata_led); - led_classdev_suspend(&fsg_usb_led); - led_classdev_suspend(&fsg_sync_led); - led_classdev_suspend(&fsg_ring_led); - return 0; -} - -static int fsg_led_resume(struct platform_device *dev) -{ - led_classdev_resume(&fsg_wlan_led); - led_classdev_resume(&fsg_wan_led); - led_classdev_resume(&fsg_sata_led); - led_classdev_resume(&fsg_usb_led); - led_classdev_resume(&fsg_sync_led); - led_classdev_resume(&fsg_ring_led); - return 0; -} -#endif - - static int fsg_led_probe(struct platform_device *pdev) { int ret; @@ -232,10 +211,6 @@ static int fsg_led_remove(struct platform_device *pdev) static struct platform_driver fsg_led_driver = { .probe = fsg_led_probe, .remove = fsg_led_remove, -#ifdef CONFIG_PM - .suspend = fsg_led_suspend, - .resume = fsg_led_resume, -#endif .driver = { .name = "fsg-led", }, diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c index b13bd2950e9..2e3df08b649 100644 --- a/drivers/leds/leds-gpio.c +++ b/drivers/leds/leds-gpio.c @@ -105,6 +105,7 @@ static int gpio_led_probe(struct platform_device *pdev) } led_dat->cdev.brightness_set = gpio_led_set; led_dat->cdev.brightness = LED_OFF; + led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME; gpio_direction_output(led_dat->gpio, led_dat->active_low); @@ -154,44 +155,9 @@ static int __devexit gpio_led_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM -static int gpio_led_suspend(struct platform_device *pdev, pm_message_t state) -{ - struct gpio_led_platform_data *pdata = pdev->dev.platform_data; - struct gpio_led_data *leds_data; - int i; - - leds_data = platform_get_drvdata(pdev); - - for (i = 0; i < pdata->num_leds; i++) - led_classdev_suspend(&leds_data[i].cdev); - - return 0; -} - -static int gpio_led_resume(struct platform_device *pdev) -{ - struct gpio_led_platform_data *pdata = pdev->dev.platform_data; - struct gpio_led_data *leds_data; - int i; - - leds_data = platform_get_drvdata(pdev); - - for (i = 0; i < pdata->num_leds; i++) - led_classdev_resume(&leds_data[i].cdev); - - return 0; -} -#else -#define gpio_led_suspend NULL -#define gpio_led_resume NULL -#endif - static struct platform_driver gpio_led_driver = { .probe = gpio_led_probe, .remove = __devexit_p(gpio_led_remove), - .suspend = gpio_led_suspend, - .resume = gpio_led_resume, .driver = { .name = "leds-gpio", .owner = THIS_MODULE, diff --git a/drivers/leds/leds-hp-disk.c b/drivers/leds/leds-hp-disk.c deleted file mode 100644 index 44fa757d825..00000000000 --- a/drivers/leds/leds-hp-disk.c +++ /dev/null @@ -1,155 +0,0 @@ -/* - * leds-hp-disk.c - driver for HP "hard disk protection" LED - * - * Copyright (C) 2008 Pavel Machek - * - * 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, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/dmi.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/input.h> -#include <linux/kthread.h> -#include <linux/leds.h> -#include <acpi/acpi_drivers.h> - -#define DRIVER_NAME "leds-hp-disk" -#define ACPI_MDPS_CLASS "led" - -/* For automatic insertion of the module */ -static struct acpi_device_id hpled_device_ids[] = { - {"HPQ0004", 0}, /* HP Mobile Data Protection System PNP */ - {"", 0}, -}; -MODULE_DEVICE_TABLE(acpi, hpled_device_ids); - -struct acpi_hpled { - struct acpi_device *device; /* The ACPI device */ -}; - -static struct acpi_hpled adev; - -static acpi_status hpled_acpi_write(acpi_handle handle, int reg) -{ - unsigned long long ret; /* Not used when writing */ - union acpi_object in_obj[1]; - struct acpi_object_list args = { 1, in_obj }; - - in_obj[0].type = ACPI_TYPE_INTEGER; - in_obj[0].integer.value = reg; - - return acpi_evaluate_integer(handle, "ALED", &args, &ret); -} - -static void hpled_set(struct led_classdev *led_cdev, - enum led_brightness value) -{ - hpled_acpi_write(adev.device->handle, !!value); -} - -static struct led_classdev hpled_led = { - .name = "hp:red:hddprotection", - .default_trigger = "heartbeat", - .brightness_set = hpled_set, -}; - -#ifdef CONFIG_PM -static int hpled_suspend(struct acpi_device *dev, pm_message_t state) -{ - led_classdev_suspend(&hpled_led); - return 0; -} - -static int hpled_resume(struct acpi_device *dev) -{ - led_classdev_resume(&hpled_led); - return 0; -} -#else -#define hpled_suspend NULL -#define hpled_resume NULL -#endif - -static int hpled_add(struct acpi_device *device) -{ - int ret; - - if (!device) - return -EINVAL; - - adev.device = device; - strcpy(acpi_device_name(device), DRIVER_NAME); - strcpy(acpi_device_class(device), ACPI_MDPS_CLASS); - device->driver_data = &adev; - - ret = led_classdev_register(NULL, &hpled_led); - return ret; -} - -static int hpled_remove(struct acpi_device *device, int type) -{ - if (!device) - return -EINVAL; - - led_classdev_unregister(&hpled_led); - return 0; -} - - - -static struct acpi_driver leds_hp_driver = { - .name = DRIVER_NAME, - .class = ACPI_MDPS_CLASS, - .ids = hpled_device_ids, - .ops = { - .add = hpled_add, - .remove = hpled_remove, - .suspend = hpled_suspend, - .resume = hpled_resume, - } -}; - -static int __init hpled_init_module(void) -{ - int ret; - - if (acpi_disabled) - return -ENODEV; - - ret = acpi_bus_register_driver(&leds_hp_driver); - if (ret < 0) - return ret; - - printk(KERN_INFO DRIVER_NAME " driver loaded.\n"); - - return 0; -} - -static void __exit hpled_exit_module(void) -{ - acpi_bus_unregister_driver(&leds_hp_driver); -} - -MODULE_DESCRIPTION("Driver for HP disk protection LED"); -MODULE_AUTHOR("Pavel Machek <pavel@suse.cz>"); -MODULE_LICENSE("GPL"); - -module_init(hpled_init_module); -module_exit(hpled_exit_module); diff --git a/drivers/leds/leds-hp6xx.c b/drivers/leds/leds-hp6xx.c index e8fb1baf8a5..e4ce1fd4633 100644 --- a/drivers/leds/leds-hp6xx.c +++ b/drivers/leds/leds-hp6xx.c @@ -45,30 +45,16 @@ static struct led_classdev hp6xx_red_led = { .name = "hp6xx:red", .default_trigger = "hp6xx-charge", .brightness_set = hp6xxled_red_set, + .flags = LED_CORE_SUSPENDRESUME, }; static struct led_classdev hp6xx_green_led = { .name = "hp6xx:green", .default_trigger = "ide-disk", .brightness_set = hp6xxled_green_set, + .flags = LED_CORE_SUSPENDRESUME, }; -#ifdef CONFIG_PM -static int hp6xxled_suspend(struct platform_device *dev, pm_message_t state) -{ - led_classdev_suspend(&hp6xx_red_led); - led_classdev_suspend(&hp6xx_green_led); - return 0; -} - -static int hp6xxled_resume(struct platform_device *dev) -{ - led_classdev_resume(&hp6xx_red_led); - led_classdev_resume(&hp6xx_green_led); - return 0; -} -#endif - static int hp6xxled_probe(struct platform_device *pdev) { int ret; @@ -98,10 +84,6 @@ MODULE_ALIAS("platform:hp6xx-led"); static struct platform_driver hp6xxled_driver = { .probe = hp6xxled_probe, .remove = hp6xxled_remove, -#ifdef CONFIG_PM - .suspend = hp6xxled_suspend, - .resume = hp6xxled_resume, -#endif .driver = { .name = "hp6xx-led", .owner = THIS_MODULE, diff --git a/drivers/leds/leds-net48xx.c b/drivers/leds/leds-net48xx.c index 054360473c9..93987a12da4 100644 --- a/drivers/leds/leds-net48xx.c +++ b/drivers/leds/leds-net48xx.c @@ -33,26 +33,9 @@ static void net48xx_error_led_set(struct led_classdev *led_cdev, static struct led_classdev net48xx_error_led = { .name = "net48xx::error", .brightness_set = net48xx_error_led_set, + .flags = LED_CORE_SUSPENDRESUME, }; -#ifdef CONFIG_PM -static int net48xx_led_suspend(struct platform_device *dev, - pm_message_t state) -{ - led_classdev_suspend(&net48xx_error_led); - return 0; -} - -static int net48xx_led_resume(struct platform_device *dev) -{ - led_classdev_resume(&net48xx_error_led); - return 0; -} -#else -#define net48xx_led_suspend NULL -#define net48xx_led_resume NULL -#endif - static int net48xx_led_probe(struct platform_device *pdev) { return led_classdev_register(&pdev->dev, &net48xx_error_led); @@ -67,8 +50,6 @@ static int net48xx_led_remove(struct platform_device *pdev) static struct platform_driver net48xx_led_driver = { .probe = net48xx_led_probe, .remove = net48xx_led_remove, - .suspend = net48xx_led_suspend, - .resume = net48xx_led_resume, .driver = { .name = DRVNAME, .owner = THIS_MODULE, diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c index 4064d4f6b33..76ec7498e2d 100644 --- a/drivers/leds/leds-pca9532.c +++ b/drivers/leds/leds-pca9532.c @@ -16,6 +16,7 @@ #include <linux/leds.h> #include <linux/input.h> #include <linux/mutex.h> +#include <linux/workqueue.h> #include <linux/leds-pca9532.h> static const unsigned short normal_i2c[] = { /*0x60,*/ I2C_CLIENT_END}; @@ -34,6 +35,7 @@ struct pca9532_data { struct pca9532_led leds[16]; struct mutex update_lock; struct input_dev *idev; + struct work_struct work; u8 pwm[2]; u8 psc[2]; }; @@ -63,7 +65,7 @@ static struct i2c_driver pca9532_driver = { * as a compromise we average one pwm to the values requested by all * leds that are not ON/OFF. * */ -static int pca9532_setpwm(struct i2c_client *client, int pwm, int blink, +static int pca9532_calcpwm(struct i2c_client *client, int pwm, int blink, enum led_brightness value) { int a = 0, b = 0, i = 0; @@ -84,11 +86,17 @@ static int pca9532_setpwm(struct i2c_client *client, int pwm, int blink, b = b/a; if (b > 0xFF) return -EINVAL; - mutex_lock(&data->update_lock); data->pwm[pwm] = b; + data->psc[pwm] = blink; + return 0; +} + +static int pca9532_setpwm(struct i2c_client *client, int pwm) +{ + struct pca9532_data *data = i2c_get_clientdata(client); + mutex_lock(&data->update_lock); i2c_smbus_write_byte_data(client, PCA9532_REG_PWM(pwm), data->pwm[pwm]); - data->psc[pwm] = blink; i2c_smbus_write_byte_data(client, PCA9532_REG_PSC(pwm), data->psc[pwm]); mutex_unlock(&data->update_lock); @@ -124,11 +132,11 @@ static void pca9532_set_brightness(struct led_classdev *led_cdev, led->state = PCA9532_ON; else { led->state = PCA9532_PWM0; /* Thecus: hardcode one pwm */ - err = pca9532_setpwm(led->client, 0, 0, value); + err = pca9532_calcpwm(led->client, 0, 0, value); if (err) return; /* XXX: led api doesn't allow error code? */ } - pca9532_setled(led); + schedule_work(&led->work); } static int pca9532_set_blink(struct led_classdev *led_cdev, @@ -137,6 +145,7 @@ static int pca9532_set_blink(struct led_classdev *led_cdev, struct pca9532_led *led = ldev_to_led(led_cdev); struct i2c_client *client = led->client; int psc; + int err = 0; if (*delay_on == 0 && *delay_off == 0) { /* led subsystem ask us for a blink rate */ @@ -148,11 +157,15 @@ static int pca9532_set_blink(struct led_classdev *led_cdev, /* Thecus specific: only use PSC/PWM 0 */ psc = (*delay_on * 152-1)/1000; - return pca9532_setpwm(client, 0, psc, led_cdev->brightness); + err = pca9532_calcpwm(client, 0, psc, led_cdev->brightness); + if (err) + return err; + schedule_work(&led->work); + return 0; } -int pca9532_event(struct input_dev *dev, unsigned int type, unsigned int code, - int value) +static int pca9532_event(struct input_dev *dev, unsigned int type, + unsigned int code, int value) { struct pca9532_data *data = input_get_drvdata(dev); @@ -165,13 +178,28 @@ int pca9532_event(struct input_dev *dev, unsigned int type, unsigned int code, else data->pwm[1] = 0; - dev_info(&dev->dev, "setting beep to %d \n", data->pwm[1]); + schedule_work(&data->work); + + return 0; +} + +static void pca9532_input_work(struct work_struct *work) +{ + struct pca9532_data *data; + data = container_of(work, struct pca9532_data, work); mutex_lock(&data->update_lock); i2c_smbus_write_byte_data(data->client, PCA9532_REG_PWM(1), data->pwm[1]); mutex_unlock(&data->update_lock); +} - return 0; +static void pca9532_led_work(struct work_struct *work) +{ + struct pca9532_led *led; + led = container_of(work, struct pca9532_led, work); + if (led->state == PCA9532_PWM0) + pca9532_setpwm(led->client, 0); + pca9532_setled(led); } static int pca9532_configure(struct i2c_client *client, @@ -204,8 +232,9 @@ static int pca9532_configure(struct i2c_client *client, led->ldev.brightness = LED_OFF; led->ldev.brightness_set = pca9532_set_brightness; led->ldev.blink_set = pca9532_set_blink; - if (led_classdev_register(&client->dev, - &led->ldev) < 0) { + INIT_WORK(&led->work, pca9532_led_work); + err = led_classdev_register(&client->dev, &led->ldev); + if (err < 0) { dev_err(&client->dev, "couldn't register LED %s\n", led->name); @@ -233,9 +262,11 @@ static int pca9532_configure(struct i2c_client *client, BIT_MASK(SND_TONE); data->idev->event = pca9532_event; input_set_drvdata(data->idev, data); + INIT_WORK(&data->work, pca9532_input_work); err = input_register_device(data->idev); if (err) { input_free_device(data->idev); + cancel_work_sync(&data->work); data->idev = NULL; goto exit; } @@ -252,18 +283,19 @@ exit: break; case PCA9532_TYPE_LED: led_classdev_unregister(&data->leds[i].ldev); + cancel_work_sync(&data->leds[i].work); break; case PCA9532_TYPE_N2100_BEEP: if (data->idev != NULL) { input_unregister_device(data->idev); input_free_device(data->idev); + cancel_work_sync(&data->work); data->idev = NULL; } break; } return err; - } static int pca9532_probe(struct i2c_client *client, @@ -271,12 +303,16 @@ static int pca9532_probe(struct i2c_client *client, { struct pca9532_data *data = i2c_get_clientdata(client); struct pca9532_platform_data *pca9532_pdata = client->dev.platform_data; + int err; + + if (!pca9532_pdata) + return -EIO; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -EIO; - data = kzalloc(sizeof(struct pca9532_data), GFP_KERNEL); + data = kzalloc(sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -285,12 +321,13 @@ static int pca9532_probe(struct i2c_client *client, data->client = client; mutex_init(&data->update_lock); - if (pca9532_pdata == NULL) - return -EIO; - - pca9532_configure(client, data, pca9532_pdata); - return 0; + err = pca9532_configure(client, data, pca9532_pdata); + if (err) { + kfree(data); + i2c_set_clientdata(client, NULL); + } + return err; } static int pca9532_remove(struct i2c_client *client) @@ -303,11 +340,13 @@ static int pca9532_remove(struct i2c_client *client) break; case PCA9532_TYPE_LED: led_classdev_unregister(&data->leds[i].ldev); + cancel_work_sync(&data->leds[i].work); break; case PCA9532_TYPE_N2100_BEEP: if (data->idev != NULL) { input_unregister_device(data->idev); input_free_device(data->idev); + cancel_work_sync(&data->work); data->idev = NULL; } break; diff --git a/drivers/leds/leds-s3c24xx.c b/drivers/leds/leds-s3c24xx.c index 25a07f2643a..4d81131542a 100644 --- a/drivers/leds/leds-s3c24xx.c +++ b/drivers/leds/leds-s3c24xx.c @@ -82,6 +82,7 @@ static int s3c24xx_led_probe(struct platform_device *dev) led->cdev.brightness_set = s3c24xx_led_set; led->cdev.default_trigger = pdata->def_trigger; led->cdev.name = pdata->name; + led->cdev.flags |= LED_CORE_SUSPENDRESUME; led->pdata = pdata; @@ -111,33 +112,9 @@ static int s3c24xx_led_probe(struct platform_device *dev) return ret; } - -#ifdef CONFIG_PM -static int s3c24xx_led_suspend(struct platform_device *dev, pm_message_t state) -{ - struct s3c24xx_gpio_led *led = pdev_to_gpio(dev); - - led_classdev_suspend(&led->cdev); - return 0; -} - -static int s3c24xx_led_resume(struct platform_device *dev) -{ - struct s3c24xx_gpio_led *led = pdev_to_gpio(dev); - - led_classdev_resume(&led->cdev); - return 0; -} -#else -#define s3c24xx_led_suspend NULL -#define s3c24xx_led_resume NULL -#endif - static struct platform_driver s3c24xx_led_driver = { .probe = s3c24xx_led_probe, .remove = s3c24xx_led_remove, - .suspend = s3c24xx_led_suspend, - .resume = s3c24xx_led_resume, .driver = { .name = "s3c24xx_led", .owner = THIS_MODULE, diff --git a/drivers/leds/leds-wm8350.c b/drivers/leds/leds-wm8350.c new file mode 100644 index 00000000000..38c6bcb07e6 --- /dev/null +++ b/drivers/leds/leds-wm8350.c @@ -0,0 +1,311 @@ +/* + * LED driver for WM8350 driven LEDS. + * + * Copyright(C) 2007, 2008 Wolfson Microelectronics PLC. + * + * 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/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/leds.h> +#include <linux/err.h> +#include <linux/mfd/wm8350/pmic.h> +#include <linux/regulator/consumer.h> + +/* Microamps */ +static const int isink_cur[] = { + 4, + 5, + 6, + 7, + 8, + 10, + 11, + 14, + 16, + 19, + 23, + 27, + 32, + 39, + 46, + 54, + 65, + 77, + 92, + 109, + 130, + 154, + 183, + 218, + 259, + 308, + 367, + 436, + 518, + 616, + 733, + 872, + 1037, + 1233, + 1466, + 1744, + 2073, + 2466, + 2933, + 3487, + 4147, + 4932, + 5865, + 6975, + 8294, + 9864, + 11730, + 13949, + 16589, + 19728, + 23460, + 27899, + 33178, + 39455, + 46920, + 55798, + 66355, + 78910, + 93840, + 111596, + 132710, + 157820, + 187681, + 223191 +}; + +#define to_wm8350_led(led_cdev) \ + container_of(led_cdev, struct wm8350_led, cdev) + +static void wm8350_led_enable(struct wm8350_led *led) +{ + int ret; + + if (led->enabled) + return; + + ret = regulator_enable(led->isink); + if (ret != 0) { + dev_err(led->cdev.dev, "Failed to enable ISINK: %d\n", ret); + return; + } + + ret = regulator_enable(led->dcdc); + if (ret != 0) { + dev_err(led->cdev.dev, "Failed to enable DCDC: %d\n", ret); + regulator_disable(led->isink); + return; + } + + led->enabled = 1; +} + +static void wm8350_led_disable(struct wm8350_led *led) +{ + int ret; + + if (!led->enabled) + return; + + ret = regulator_disable(led->dcdc); + if (ret != 0) { + dev_err(led->cdev.dev, "Failed to disable DCDC: %d\n", ret); + return; + } + + ret = regulator_disable(led->isink); + if (ret != 0) { + dev_err(led->cdev.dev, "Failed to disable ISINK: %d\n", ret); + regulator_enable(led->dcdc); + return; + } + + led->enabled = 0; +} + +static void led_work(struct work_struct *work) +{ + struct wm8350_led *led = container_of(work, struct wm8350_led, work); + int ret; + int uA; + unsigned long flags; + + mutex_lock(&led->mutex); + + spin_lock_irqsave(&led->value_lock, flags); + + if (led->value == LED_OFF) { + spin_unlock_irqrestore(&led->value_lock, flags); + wm8350_led_disable(led); + goto out; + } + + /* This scales linearly into the index of valid current + * settings which results in a linear scaling of perceived + * brightness due to the non-linear current settings provided + * by the hardware. + */ + uA = (led->max_uA_index * led->value) / LED_FULL; + spin_unlock_irqrestore(&led->value_lock, flags); + BUG_ON(uA >= ARRAY_SIZE(isink_cur)); + + ret = regulator_set_current_limit(led->isink, isink_cur[uA], + isink_cur[uA]); + if (ret != 0) + dev_err(led->cdev.dev, "Failed to set %duA: %d\n", + isink_cur[uA], ret); + + wm8350_led_enable(led); + +out: + mutex_unlock(&led->mutex); +} + +static void wm8350_led_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct wm8350_led *led = to_wm8350_led(led_cdev); + unsigned long flags; + + spin_lock_irqsave(&led->value_lock, flags); + led->value = value; + schedule_work(&led->work); + spin_unlock_irqrestore(&led->value_lock, flags); +} + +static void wm8350_led_shutdown(struct platform_device *pdev) +{ + struct wm8350_led *led = platform_get_drvdata(pdev); + + mutex_lock(&led->mutex); + led->value = LED_OFF; + wm8350_led_disable(led); + mutex_unlock(&led->mutex); +} + +static int wm8350_led_probe(struct platform_device *pdev) +{ + struct regulator *isink, *dcdc; + struct wm8350_led *led; + struct wm8350_led_platform_data *pdata = pdev->dev.platform_data; + int ret, i; + + if (pdata == NULL) { + dev_err(&pdev->dev, "no platform data\n"); + return -ENODEV; + } + + if (pdata->max_uA < isink_cur[0]) { + dev_err(&pdev->dev, "Invalid maximum current %duA\n", + pdata->max_uA); + return -EINVAL; + } + + isink = regulator_get(&pdev->dev, "led_isink"); + if (IS_ERR(isink)) { + printk(KERN_ERR "%s: cant get ISINK\n", __func__); + return PTR_ERR(isink); + } + + dcdc = regulator_get(&pdev->dev, "led_vcc"); + if (IS_ERR(dcdc)) { + printk(KERN_ERR "%s: cant get DCDC\n", __func__); + ret = PTR_ERR(dcdc); + goto err_isink; + } + + led = kzalloc(sizeof(*led), GFP_KERNEL); + if (led == NULL) { + ret = -ENOMEM; + goto err_dcdc; + } + + led->cdev.brightness_set = wm8350_led_set; + led->cdev.default_trigger = pdata->default_trigger; + led->cdev.name = pdata->name; + led->cdev.flags |= LED_CORE_SUSPENDRESUME; + led->enabled = regulator_is_enabled(isink); + led->isink = isink; + led->dcdc = dcdc; + + for (i = 0; i < ARRAY_SIZE(isink_cur) - 1; i++) + if (isink_cur[i] >= pdata->max_uA) + break; + led->max_uA_index = i; + if (pdata->max_uA != isink_cur[i]) + dev_warn(&pdev->dev, + "Maximum current %duA is not directly supported," + " check platform data\n", + pdata->max_uA); + + spin_lock_init(&led->value_lock); + mutex_init(&led->mutex); + INIT_WORK(&led->work, led_work); + led->value = LED_OFF; + platform_set_drvdata(pdev, led); + + ret = led_classdev_register(&pdev->dev, &led->cdev); + if (ret < 0) + goto err_led; + + return 0; + + err_led: + kfree(led); + err_dcdc: + regulator_put(dcdc); + err_isink: + regulator_put(isink); + return ret; +} + +static int wm8350_led_remove(struct platform_device *pdev) +{ + struct wm8350_led *led = platform_get_drvdata(pdev); + + led_classdev_unregister(&led->cdev); + flush_scheduled_work(); + wm8350_led_disable(led); + regulator_put(led->dcdc); + regulator_put(led->isink); + kfree(led); + return 0; +} + +static struct platform_driver wm8350_led_driver = { + .driver = { + .name = "wm8350-led", + .owner = THIS_MODULE, + }, + .probe = wm8350_led_probe, + .remove = wm8350_led_remove, + .shutdown = wm8350_led_shutdown, +}; + +static int __devinit wm8350_led_init(void) +{ + return platform_driver_register(&wm8350_led_driver); +} +module_init(wm8350_led_init); + +static void wm8350_led_exit(void) +{ + platform_driver_unregister(&wm8350_led_driver); +} +module_exit(wm8350_led_exit); + +MODULE_AUTHOR("Mark Brown"); +MODULE_DESCRIPTION("WM8350 LED driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:wm8350-led"); diff --git a/drivers/leds/leds-wrap.c b/drivers/leds/leds-wrap.c index 2f3aa87f2a1..2982c86ac4c 100644 --- a/drivers/leds/leds-wrap.c +++ b/drivers/leds/leds-wrap.c @@ -56,40 +56,21 @@ static struct led_classdev wrap_power_led = { .name = "wrap::power", .brightness_set = wrap_power_led_set, .default_trigger = "default-on", + .flags = LED_CORE_SUSPENDRESUME, }; static struct led_classdev wrap_error_led = { .name = "wrap::error", .brightness_set = wrap_error_led_set, + .flags = LED_CORE_SUSPENDRESUME, }; static struct led_classdev wrap_extra_led = { .name = "wrap::extra", .brightness_set = wrap_extra_led_set, + .flags = LED_CORE_SUSPENDRESUME, }; -#ifdef CONFIG_PM -static int wrap_led_suspend(struct platform_device *dev, - pm_message_t state) -{ - led_classdev_suspend(&wrap_power_led); - led_classdev_suspend(&wrap_error_led); - led_classdev_suspend(&wrap_extra_led); - return 0; -} - -static int wrap_led_resume(struct platform_device *dev) -{ - led_classdev_resume(&wrap_power_led); - led_classdev_resume(&wrap_error_led); - led_classdev_resume(&wrap_extra_led); - return 0; -} -#else -#define wrap_led_suspend NULL -#define wrap_led_resume NULL -#endif - static int wrap_led_probe(struct platform_device *pdev) { int ret; @@ -127,8 +108,6 @@ static int wrap_led_remove(struct platform_device *pdev) static struct platform_driver wrap_led_driver = { .probe = wrap_led_probe, .remove = wrap_led_remove, - .suspend = wrap_led_suspend, - .resume = wrap_led_resume, .driver = { .name = DRVNAME, .owner = THIS_MODULE, diff --git a/drivers/leds/ledtrig-timer.c b/drivers/leds/ledtrig-timer.c index db681962d7b..3d6531396dd 100644 --- a/drivers/leds/ledtrig-timer.c +++ b/drivers/leds/ledtrig-timer.c @@ -199,6 +199,7 @@ err_out: static void timer_trig_deactivate(struct led_classdev *led_cdev) { struct timer_trig_data *timer_data = led_cdev->trigger_data; + unsigned long on = 0, off = 0; if (timer_data) { device_remove_file(led_cdev->dev, &dev_attr_delay_on); @@ -206,6 +207,10 @@ static void timer_trig_deactivate(struct led_classdev *led_cdev) del_timer_sync(&timer_data->timer); kfree(timer_data); } + + /* If there is hardware support for blinking, stop it */ + if (led_cdev->blink_set) + led_cdev->blink_set(led_cdev, &on, &off); } static struct led_trigger timer_led_trigger = { |