include/linux/pwm_backlight.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Generic PWM backlight driver data - see drivers/video/backlight/pwm_bl.c
   4  */
   5 #ifndef __LINUX_PWM_BACKLIGHT_H
   6 #define __LINUX_PWM_BACKLIGHT_H
   7
   8 #include <linux/backlight.h>
   9
  10 struct platform_pwm_backlight_data {
  11         int pwm_id;
  12         unsigned int max_brightness;
  13         unsigned int dft_brightness;
  14         unsigned int lth_brightness;
  15         unsigned int pwm_period_ns;
  16         unsigned int *levels;
  17         unsigned int post_pwm_on_delay;
  18         unsigned int pwm_off_delay;
  19         /* TODO remove once all users are switched to gpiod_* API */
  20         int enable_gpio;
  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