/* SPDX-License-Identifier: GPL-2.0+ */

  /*
   * Copyright (c) 2016 Google, Inc
   * Written by Simon Glass <sjg@chromium.org>

   */
  
  #ifndef _PANEL_H
  #define _PANEL_H
  
  struct panel_ops {
  	/**
  	 * enable_backlight() - Enable the panel backlight
  	 *
  	 * @dev:	Panel device containing the backlight to enable
  	 * @return 0 if OK, -ve on error
  	 */
  	int (*enable_backlight)(struct udevice *dev);

  
  	/**
  	 * set_backlight - Set panel backlight brightness
  	 *
  	 * @dev:	Panel device containing the backlight to update
  	 * @percent:	Brightness value (0 to 100, or BACKLIGHT_... value)
  	 * @return 0 if OK, -ve on error
  	 */
  	int (*set_backlight)(struct udevice *dev, int percent);

  	/**
  	 * get_timings() - Get display timings from panel.
  	 *
  	 * @dev:	Panel device containing the display timings
  	 * @tim:	Place to put timings
  	 * @return 0 if OK, -ve on error
  	 */
  	int (*get_display_timing)(struct udevice *dev,
  				  struct display_timing *timing);

  };
  
  #define panel_get_ops(dev)	((struct panel_ops *)(dev)->driver->ops)
  
  /**

   * panel_enable_backlight() - Enable/disable the panel backlight

   *
   * @dev:	Panel device containing the backlight to enable

   * @enable:	true to enable the backlight, false to dis

   * @return 0 if OK, -ve on error
   */
  int panel_enable_backlight(struct udevice *dev);

  /**

   * panel_set_backlight - Set brightness for the panel backlight
   *
   * @dev:	Panel device containing the backlight to update
   * @percent:	Brightness value (0 to 100, or BACKLIGHT_... value)
   * @return 0 if OK, -ve on error
   */
  int panel_set_backlight(struct udevice *dev, int percent);
  
  /**

   * panel_get_display_timing() - Get display timings from panel.
   *
   * @dev:	Panel device containing the display timings
   * @return 0 if OK, -ve on error
   */
  int panel_get_display_timing(struct udevice *dev,
  			     struct display_timing *timing);

  #endif