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

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds

Browse Source 
Pull LED update from Bryan Wu:
 "Basically we have some bug fixing and clean up and one big thing is we
  start to merge patch to add support LED Flash class"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  leds: gpio: cleanup the leds-gpio driver
  led: gpio: Fix possible ZERO_SIZE_PTR pointer dereferencing error.
  led: gpio: Sort include headers alphabetically
  leds: Improve and export led_update_brightness
  leds: trigger: gpio: fix warning in gpio trigger for gpios whose accessor function may sleep
  leds: lp3944: fix sparse warning
  leds: avoid using DEVICE_ATTR macro for max_brightness attribute
  leds: make brightness type consistent across whole subsystem
  leds: Reorder include directives
This commit is contained in:
Linus Torvalds
2014-10-21 08:18:38 -07:00
parent 5b9c897252 a4c84e6aaf
commit 045aaedab6
7 changed files with 55 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
include/linux/leds.h
View File

@@ -13,8 +13,8 @@
#define __LINUX_LEDS_H_INCLUDED
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/rwsem.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <linux/workqueue.h>
@@ -31,8 +31,8 @@ enum led_brightness {
struct led_classdev {
const char *name;
int brightness;
int max_brightness;
enum led_brightness brightness;
enum led_brightness max_brightness;
int flags;
/* Lower 16 bits reflect status */
@@ -140,6 +140,16 @@ extern void led_blink_set_oneshot(struct led_classdev *led_cdev,
*/
extern void led_set_brightness(struct led_classdev *led_cdev,
enum led_brightness brightness);
/**
* led_update_brightness - update LED brightness
* @led_cdev: the LED to query
*
* Get an LED's current brightness and update led_cdev->brightness
* member with the obtained value.
*
* Returns: 0 on success or negative error value on failure
*/
extern int led_update_brightness(struct led_classdev *led_cdev);
/*
* LED Triggers