/* * GMA500 Backlight Interface * * Copyright (c) 2009-2011, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. * * Authors: Eric Knopp * */ #include "psb_drv.h" #include "psb_intel_reg.h" #include "psb_intel_drv.h" #include "intel_bios.h" #include "power.h" int gma_backlight_init(struct drm_device *dev) { #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE struct drm_psb_private *dev_priv = dev->dev_private; return dev_priv->ops->backlight_init(dev); #endif } void gma_backlight_exit(struct drm_device *dev) { #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE struct drm_psb_private *dev_priv = dev->dev_private; if (dev_priv->backlight_device) { dev_priv->backlight_device->props.brightness = 0; backlight_update_status(dev_priv->backlight_device); backlight_device_unregister(dev_priv->backlight_device); } #endif }