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>
26 lines
445 B
C
26 lines
445 B
C
/*
|
|
* Copyright (c) 2016 Google, Inc
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#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);
|
|
}
|
|
|
|
UCLASS_DRIVER(backlight) = {
|
|
.id = UCLASS_PANEL_BACKLIGHT,
|
|
.name = "backlight",
|
|
};
|