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 <common.h> 10#include <dm.h> 11#include <backlight.h> 12 13int backlight_enable(struct udevice *dev) 14{ 15 const struct backlight_ops *ops = backlight_get_ops(dev); 16 17 if (!ops->enable) 18 return -ENOSYS; 19 20 return ops->enable(dev); 21} 22 23int backlight_set_brightness(struct udevice *dev, int percent) 24{ 25 const struct backlight_ops *ops = backlight_get_ops(dev); 26 27 if (!ops->set_brightness) 28 return -ENOSYS; 29 30 return ops->set_brightness(dev, percent); 31} 32 33UCLASS_DRIVER(backlight) = { 34 .id = UCLASS_PANEL_BACKLIGHT, 35 .name = "backlight", 36}; 37