mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-16 08:13:17 +00:00
363bf77acc
LCD panels normally have a backlight which can be controlled to illuminate the LCD contents. Add a uclass to support this. Initially it only has a method to enable the backlight. Signed-off-by: Simon Glass <sjg@chromium.org>
31 lines
604 B
C
31 lines
604 B
C
/*
|
|
* Copyright (c) 2016 Google, Inc
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef _BACKLIGHT_H
|
|
#define _BACKLIGHT_H
|
|
|
|
struct backlight_ops {
|
|
/**
|
|
* enable() - Enable a backlight
|
|
*
|
|
* @dev: Backlight device to enable
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int (*enable)(struct udevice *dev);
|
|
};
|
|
|
|
#define backlight_get_ops(dev) ((struct backlight_ops *)(dev)->driver->ops)
|
|
|
|
/**
|
|
* backlight_enable() - Enable a backlight
|
|
*
|
|
* @dev: Backlight device to enable
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int backlight_enable(struct udevice *dev);
|
|
|
|
#endif
|