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 #include <common.h>
8 #include <dm.h>
9 #include <backlight.h>
10 
11 int backlight_enable(struct udevice *dev)
12 {
13 	const struct backlight_ops *ops = backlight_get_ops(dev);
14 
15 	if (!ops->enable)
16 		return -ENOSYS;
17 
18 	return ops->enable(dev);
19 }
20 
21 int backlight_set_brightness(struct udevice *dev, int percent)
22 {
23 	const struct backlight_ops *ops = backlight_get_ops(dev);
24 
25 	if (!ops->set_brightness)
26 		return -ENOSYS;
27 
28 	return ops->set_brightness(dev, percent);
29 }
30 
31 UCLASS_DRIVER(backlight) = {
32 	.id		= UCLASS_PANEL_BACKLIGHT,
33 	.name		= "backlight",
34 };
35