include/panel.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (c) 2016 Google, Inc
   4  * Written by Simon Glass <sjg@chromium.org>
   5  */
   6
   7 #ifndef _PANEL_H
   8 #define _PANEL_H
   9
  10 struct panel_ops {
  11         /**
  12          * enable_backlight() - Enable the panel backlight
  13          *
  14          * @dev:        Panel device containing the backlight to enable
  15          * @return 0 if OK, -ve on error
  16          */
  17         int (*enable_backlight)(struct udevice *dev);
  18
  19         /**
  20          * set_backlight - Set panel backlight brightness
  21          *
  22          * @dev:        Panel device containing the backlight to update
  23          * @percent:    Brightness value (0 to 100, or BACKLIGHT_... value)
  24          * @return 0 if OK, -ve on error
  25          */
  26         int (*set_backlight)(struct udevice *dev, int percent);
  27
  28         /**
  29          * get_timings() - Get display timings from panel.
  30          *
  31          * @dev:        Panel device containing the display timings
  32          * @tim:        Place to put timings
  33          * @return 0 if OK, -ve on error
  34          */
  35         int (*get_display_timing)(struct udevice *dev,
  36                                   struct display_timing *timing);
  37 };
  38
  39 #define panel_get_ops(dev)      ((struct panel_ops *)(dev)->driver->ops)
  40
  41 /**
  42  * panel_enable_backlight() - Enable/disable the panel backlight
  43  *
  44  * @dev:        Panel device containing the backlight to enable
  45  * @enable:     true to enable the backlight, false to dis
  46  * @return 0 if OK, -ve on error
  47  */
  48 int panel_enable_backlight(struct udevice *dev);
  49
  50 /**
  51  * panel_set_backlight - Set brightness for the panel backlight
  52  *
  53  * @dev:        Panel device containing the backlight to update
  54  * @percent:    Brightness value (0 to 100, or BACKLIGHT_... value)
  55  * @return 0 if OK, -ve on error
  56  */
  57 int panel_set_backlight(struct udevice *dev, int percent);
  58
  59 /**
  60  * panel_get_display_timing() - Get display timings from panel.
  61  *
  62  * @dev:        Panel device containing the display timings
  63  * @return 0 if OK, -ve on error
  64  */
  65 int panel_get_display_timing(struct udevice *dev,
  66                              struct display_timing *timing);
  67
  68 #endif