3e3ed6cdc4
This commit adds very basic support for device tree probing. Currently, only a PWM and a list of distinct brightness levels can be specified. Enabling or disabling backlight power via GPIOs is not yet supported. Reviewed-by: Shawn Guo <shawn.guo@linaro.org> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
23 lines
621 B
C
23 lines
621 B
C
/*
|
|
* Generic PWM backlight driver data - see drivers/video/backlight/pwm_bl.c
|
|
*/
|
|
#ifndef __LINUX_PWM_BACKLIGHT_H
|
|
#define __LINUX_PWM_BACKLIGHT_H
|
|
|
|
#include <linux/backlight.h>
|
|
|
|
struct platform_pwm_backlight_data {
|
|
int pwm_id;
|
|
unsigned int max_brightness;
|
|
unsigned int dft_brightness;
|
|
unsigned int lth_brightness;
|
|
unsigned int pwm_period_ns;
|
|
unsigned int *levels;
|
|
int (*init)(struct device *dev);
|
|
int (*notify)(struct device *dev, int brightness);
|
|
void (*notify_after)(struct device *dev, int brightness);
|
|
void (*exit)(struct device *dev);
|
|
int (*check_fb)(struct device *dev, struct fb_info *info);
|
|
};
|
|
|
|
#endif
|