Files
Linux_Drivers/u-boot-2021.10/drivers/video/backlight-uclass.c
sam.xiang f8fc109960 [uboot] create uboot from github:
repo: https://github.com/u-boot/u-boot
	commit: d80bb749fab53da72c4a0e09b8c2d2aaa3103c91

Change-Id: Ie6434426e1ec15bc08bb1832798e371f3fd5fb29
2023-03-10 20:30:57 +08:00

37 lines
704 B
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2016 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*/
#define LOG_CATEGORY UCLASS_PANEL_BACKLIGHT
#include <common.h>
#include <dm.h>
#include <backlight.h>
int backlight_enable(struct udevice *dev)
{
const struct backlight_ops *ops = backlight_get_ops(dev);
if (!ops->enable)
return -ENOSYS;
return ops->enable(dev);
}
int backlight_set_brightness(struct udevice *dev, int percent)
{
const struct backlight_ops *ops = backlight_get_ops(dev);
if (!ops->set_brightness)
return -ENOSYS;
return ops->set_brightness(dev, percent);
}
UCLASS_DRIVER(backlight) = {
.id = UCLASS_PANEL_BACKLIGHT,
.name = "backlight",
};