Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
7#include <linux/backlight.h>
8
9/* TODO: convert to gpiod_*() API once it has been merged */
10#define PWM_BACKLIGHT_GPIO_ACTIVE_LOW (1 << 0)
11
12struct platform_pwm_backlight_data {
13 int pwm_id;
14 unsigned int max_brightness;
15 unsigned int dft_brightness;
16 unsigned int lth_brightness;
17 unsigned int pwm_period_ns;
18 unsigned int *levels;
19 int enable_gpio;
20 unsigned long enable_gpio_flags;
21 int (*init)(struct device *dev);
22 int (*notify)(struct device *dev, int brightness);
23 void (*notify_after)(struct device *dev, int brightness);
24 void (*exit)(struct device *dev);
25 int (*check_fb)(struct device *dev, struct fb_info *info);
26};
27
28#endif