GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-20 21:51:05 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

pwm-backlight: switch to gpiod interface

Browse source 
Switch to the new gpiod interface, which allows to handle GPIO
properties such as active low transparently and removes a whole bunch of
code.

There are still a couple of users of this driver that rely on passing
the enable GPIO number through platform data, so a fallback mechanism
using a GPIO number is still available to avoid breaking them. It will
be removed once current users have switched to the GPIO lookup tables
provided by the gpiod interface.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Alexandre Courbot 2014-02-27 14:53:34 +09:00 • committed by Thierry Reding
parent a4406f165f
commit 257462dbf3
2 changed files with 30 additions and 44 deletions
Download patch file Download diff file Expand all files Collapse all files

5
include/linux/pwm_backlight.h
View file

@ -6,9 +6,6 @@
#include <linux/backlight.h>
/* TODO: convert to gpiod_*() API once it has been merged */
#define PWM_BACKLIGHT_GPIO_ACTIVE_LOW (1 << 0)
struct platform_pwm_backlight_data {
int pwm_id;
unsigned int max_brightness;
@ -16,8 +13,8 @@ struct platform_pwm_backlight_data {
unsigned int lth_brightness;
unsigned int pwm_period_ns;
unsigned int *levels;
/* TODO remove once all users are switched to gpiod_* API */
int enable_gpio;
unsigned long enable_gpio_flags;
int (*init)(struct device *dev);
int (*notify)(struct device *dev, int brightness);
void (*notify_after)(struct device *dev, int brightness);