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