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| author | Jacek Anaszewski <j.anaszewski@samsung.com> | 2015-10-07 11:10:41 +0200 |
|---|---|---|
| committer | Jacek Anaszewski <j.anaszewski@samsung.com> | 2016-01-04 09:57:30 +0100 |
| commit | 81fe8e5b73e3f4de578ac7f53c1d956d4f58b8d4 (patch) | |
| tree | ff084840f52a554f7a902c7e1ffe54416e4c452f /drivers/leds/leds.h | |
| parent | 437a4240f26461610cc0d90950b1c88348d9babe (diff) | |
| download | linux-81fe8e5b73e3f4de578ac7f53c1d956d4f58b8d4.tar.gz linux-81fe8e5b73e3f4de578ac7f53c1d956d4f58b8d4.tar.bz2 linux-81fe8e5b73e3f4de578ac7f53c1d956d4f58b8d4.zip | |
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/leds.h')
| -rw-r--r-- | drivers/leds/leds.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/leds/leds.h b/drivers/leds/leds.h index cf6d44886bcb..8e252a2f8662 100644 --- a/drivers/leds/leds.h +++ b/drivers/leds/leds.h @@ -46,6 +46,10 @@ static inline int led_get_brightness(struct led_classdev *led_cdev) void led_init_core(struct led_classdev *led_cdev); void led_stop_software_blink(struct led_classdev *led_cdev); +void led_set_brightness_nopm(struct led_classdev *led_cdev, + enum led_brightness value); +void led_set_brightness_nosleep(struct led_classdev *led_cdev, + enum led_brightness value); extern struct rw_semaphore leds_list_lock; extern struct list_head leds_list; |