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leds: delay led_set_brightness if stopping soft-blink

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Delay execution of led_set_brightness() if need to stop soft-blink
timer.

This allows led_set_brightness to be called in hard-irq context even if
soft-blink was activated on that LED.

Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
This commit is contained in:
Fabio Baltieri
2012-08-15 21:44:34 +08:00
committed by Bryan Wu
parent 490dcee9b4
commit d23a22a74f
5 changed files with 37 additions and 4 deletions
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4
drivers/leds/led-triggers.c
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@@ -109,6 +109,8 @@ void led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trig)
list_del(&led_cdev->trig_list);
write_unlock_irqrestore(&led_cdev->trigger->leddev_list_lock,
flags);
cancel_work_sync(&led_cdev->set_brightness_work);
led_stop_software_blink(led_cdev);
if (led_cdev->trigger->deactivate)
led_cdev->trigger->deactivate(led_cdev);
led_cdev->trigger = NULL;
@@ -224,7 +226,7 @@ void led_trigger_event(struct led_trigger *trig,
struct led_classdev *led_cdev;
led_cdev = list_entry(entry, struct led_classdev, trig_list);
__led_set_brightness(led_cdev, brightness);
led_set_brightness(led_cdev, brightness);
}
read_unlock(&trig->leddev_list_lock);
}