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