[mirror_ubuntu-artful-kernel.git] / include / linux / pwm_backlight.h

/*
 * 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>

/* 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;
	unsigned int dft_brightness;
	unsigned int lth_brightness;
	unsigned int pwm_period_ns;
	unsigned int *levels;
	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);
	void (*exit)(struct device *dev);
	int (*check_fb)(struct device *dev, struct fb_info *info);
};

#endif
Commit	Line	Data
42796d37	1	/*
	2	* Generic PWM backlight driver data - see drivers/video/backlight/pwm_bl.c
	3	*/
	4	#ifndef __LINUX_PWM_BACKLIGHT_H
	5	#define __LINUX_PWM_BACKLIGHT_H
	6
ef0a5e80 RM	7	#include <linux/backlight.h>
ef0a5e80 RM	8
2b9b1620 TR	9	/* TODO: convert to gpiod_() API once it has been merged /
	10	#define PWM_BACKLIGHT_GPIO_ACTIVE_LOW (1 << 0)
	11
42796d37	12	struct platform_pwm_backlight_data {
	13	int pwm_id;
	14	unsigned int max_brightness;
	15	unsigned int dft_brightness;
fef7764f	16	unsigned int lth_brightness;
42796d37	17	unsigned int pwm_period_ns;
3e3ed6cd	18	unsigned int *levels;
2b9b1620 TR	19	int enable_gpio;
2b9b1620 TR	20	unsigned long enable_gpio_flags;
3b73125a	21	int (init)(struct device dev);
cfc3899f	22	int (notify)(struct device dev, int brightness);
cc7993f6	23	void (notify_after)(struct device dev, int brightness);
3b73125a	24	void (exit)(struct device dev);
ef0a5e80	25	int (check_fb)(struct device dev, struct fb_info *info);
42796d37	26	};
	27
	28	#endif