xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

leds: delay led_set_brightness if stopping soft-blink

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/leds.h
View File

@@ -16,6 +16,7 @@
#include <linux/spinlock.h>
#include <linux/rwsem.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
struct device;
/*
@@ -69,6 +70,9 @@ struct led_classdev {
struct timer_list blink_timer;
int blink_brightness;
struct work_struct set_brightness_work;
int delayed_set_value;
#ifdef CONFIG_LEDS_TRIGGERS
/* Protects the trigger data below */
struct rw_semaphore trigger_lock;