text: /* SPDX-License-Identifier: GPL-2.0 */
  /*
   * 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;
  	unsigned int post_pwm_on_delay;
  	unsigned int pwm_off_delay;
  	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
  