mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 10:35:15 +07:00
bbbb262d37
The devices have various internal differences so we have some abstractions to hide the ugly differences and we then wrap them up in standard interfaces. Add these bits Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/*
|
|
* 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);
|
|
#else
|
|
return 0;
|
|
#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
|
|
}
|