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authorJacek Anaszewski <j.anaszewski@samsung.com>2015-10-07 11:10:41 +0200
committerJacek Anaszewski <j.anaszewski@samsung.com>2016-01-04 09:57:30 +0100
commit81fe8e5b73e3f4de578ac7f53c1d956d4f58b8d4 (patch)
treeff084840f52a554f7a902c7e1ffe54416e4c452f /drivers/leds/led-class.c
parent437a4240f26461610cc0d90950b1c88348d9babe (diff)
downloadlinux-81fe8e5b73e3f4de578ac7f53c1d956d4f58b8d4.tar.bz2
leds: core: Add led_set_brightness_nosleep{nopm} functions
This patch adds led_set_brightness_nosleep() and led_set_brightness_nopm() functions, that guarantee setting LED brightness in a non-blocking way. The latter is used from pm_ops context and doesn't modify the brightness cached in the struct led_classdev. Its execution always ends up with a call to brightness setting op - either directly or through a set_brightness_work, regardless of LED_SUSPENDED flag state. The patch also replaces led_set_brightness_async() with led_set_brightness_nosleep() in all places where the most vital was setting brightness in a non sleeping way but not necessarily asynchronously, which is not needed for non-blocking drivers. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Diffstat (limited to 'drivers/leds/led-class.c')
-rw-r--r--drivers/leds/led-class.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 7385f98dd54b..83a1dc725864 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -109,7 +109,7 @@ static const struct attribute_group *led_groups[] = {
void led_classdev_suspend(struct led_classdev *led_cdev)
{
led_cdev->flags |= LED_SUSPENDED;
- led_cdev->brightness_set(led_cdev, 0);
+ led_set_brightness_nopm(led_cdev, 0);
}
EXPORT_SYMBOL_GPL(led_classdev_suspend);
@@ -119,7 +119,7 @@ EXPORT_SYMBOL_GPL(led_classdev_suspend);
*/
void led_classdev_resume(struct led_classdev *led_cdev)
{
- led_cdev->brightness_set(led_cdev, led_cdev->brightness);
+ led_set_brightness_nopm(led_cdev, led_cdev->brightness);
if (led_cdev->flash_resume)
led_cdev->flash_resume(led_cdev);