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 #define LOG_CATEGORY UCLASS_PANEL_BACKLIGHT
8 
9 #include <dm.h>
10 #include <backlight.h>
11 
backlight_enable(struct udevice * dev)12 int backlight_enable(struct udevice *dev)
13 {
14 	const struct backlight_ops *ops = backlight_get_ops(dev);
15 
16 	if (!ops->enable)
17 		return -ENOSYS;
18 
19 	return ops->enable(dev);
20 }
21 
backlight_set_brightness(struct udevice * dev,int percent)22 int backlight_set_brightness(struct udevice *dev, int percent)
23 {
24 	const struct backlight_ops *ops = backlight_get_ops(dev);
25 
26 	if (!ops->set_brightness)
27 		return -ENOSYS;
28 
29 	return ops->set_brightness(dev, percent);
30 }
31 
32 UCLASS_DRIVER(backlight) = {
33 	.id		= UCLASS_PANEL_BACKLIGHT,
34 	.name		= "backlight",
35 };
36