1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (c) 2016 Google, Inc 3*4882a593Smuzhiyun * Written by Simon Glass <sjg@chromium.org> 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #include <common.h> 9*4882a593Smuzhiyun #include <dm.h> 10*4882a593Smuzhiyun #include <backlight.h> 11*4882a593Smuzhiyun backlight_enable(struct udevice * dev)12*4882a593Smuzhiyunint backlight_enable(struct udevice *dev) 13*4882a593Smuzhiyun { 14*4882a593Smuzhiyun const struct backlight_ops *ops = backlight_get_ops(dev); 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun if (!ops->enable) 17*4882a593Smuzhiyun return -ENOSYS; 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun return ops->enable(dev); 20*4882a593Smuzhiyun } 21*4882a593Smuzhiyun backlight_disable(struct udevice * dev)22*4882a593Smuzhiyunint backlight_disable(struct udevice *dev) 23*4882a593Smuzhiyun { 24*4882a593Smuzhiyun const struct backlight_ops *ops = backlight_get_ops(dev); 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun if (!ops->disable) 27*4882a593Smuzhiyun return -ENOSYS; 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun return ops->disable(dev); 30*4882a593Smuzhiyun } 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun UCLASS_DRIVER(backlight) = { 33*4882a593Smuzhiyun .id = UCLASS_PANEL_BACKLIGHT, 34*4882a593Smuzhiyun .name = "backlight", 35*4882a593Smuzhiyun }; 36