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authorDavid S. Miller <davem@davemloft.net>2010-12-27 09:37:05 +0300
committerDavid S. Miller <davem@davemloft.net>2010-12-27 09:37:05 +0300
commit17f7f4d9fcce8f1b75b5f735569309dee7665968 (patch)
tree14d7e49ca0053a0fcab3c33b5023bf3f90c5c08a /drivers/gpu/drm/nouveau/nouveau_backlight.c
parent041110a439e21cd40709ead4ffbfa8034619ad77 (diff)
parentd7c1255a3a21e98bdc64df8ccf005a174d7e6289 (diff)
downloadlinux-17f7f4d9fcce8f1b75b5f735569309dee7665968.tar.xz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: net/ipv4/fib_frontend.c
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_backlight.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_backlight.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_backlight.c b/drivers/gpu/drm/nouveau/nouveau_backlight.c
index 406228f4a2a0..b14c81110575 100644
--- a/drivers/gpu/drm/nouveau/nouveau_backlight.c
+++ b/drivers/gpu/drm/nouveau/nouveau_backlight.c
@@ -31,6 +31,7 @@
*/
#include <linux/backlight.h>
+#include <linux/acpi.h>
#include "drmP.h"
#include "nouveau_drv.h"
@@ -136,6 +137,14 @@ int nouveau_backlight_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
+#ifdef CONFIG_ACPI
+ if (acpi_video_backlight_support()) {
+ NV_INFO(dev, "ACPI backlight interface available, "
+ "not registering our own\n");
+ return 0;
+ }
+#endif
+
switch (dev_priv->card_type) {
case NV_40:
return nouveau_nv40_backlight_init(dev);