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authorJacek Anaszewski <j.anaszewski@samsung.com>2015-10-19 10:04:01 +0300
committerJacek Anaszewski <j.anaszewski@samsung.com>2016-01-04 11:57:30 +0300
commit1afcadfcd184c3b52e38bae15c247a5fa4a0e054 (patch)
tree6e94c39adb855e8309f97a7d79fbad19bcffda96 /include/linux/leds.h
parent81fe8e5b73e3f4de578ac7f53c1d956d4f58b8d4 (diff)
downloadlinux-1afcadfcd184c3b52e38bae15c247a5fa4a0e054.tar.xz
leds: core: Use set_brightness_work for the blocking op
This patch makes LED core capable of setting brightness for drivers that implement brightness_set_blocking op. It removes from LED class drivers responsibility for using work queues on their own. In order to achieve this set_brightness_delayed callback is being modified to directly call one of available ops for brightness setting. led_set_brightness_async() function didn't set brightness in an asynchronous way in all cases. It was mistakenly assuming that all LED subsystem drivers used work queue in their brightness_set op, whereas only half of them did that. Since it has no users now, it is being removed. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Diffstat (limited to 'include/linux/leds.h')
-rw-r--r--include/linux/leds.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 403fa8690295..b35e0f5b8d6c 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -158,7 +158,7 @@ extern void led_blink_set_oneshot(struct led_classdev *led_cdev,
*
* Set an LED's brightness, and, if necessary, cancel the
* software blink timer that implements blinking when the
- * hardware doesn't.
+ * hardware doesn't. This function is guaranteed not to sleep.
*/
extern void led_set_brightness(struct led_classdev *led_cdev,
enum led_brightness brightness);