[PATCH] drivers/gpu/drm/gma500:fix build failure for 3.9-rc5

[Xiong Zhou]

From: Xiong Zhou <jencce.kernel at gmail.com>

This patch fixes build failure of v3.9-rc5.
When config ACPI_VIDEO as m, DRM_GMA500 as y, here comes the failure.
gma5/600 needs acpi_video just like nouveau.

Failure message:
drivers/built-in.o: In function `psb_driver_load':
kernel-3.9-rc5/drivers/gpu/drm/gma500/psb_drv.c:340: \
	undefined reference to `acpi_video_register'
make: *** [vmlinux] Error 1

Signed-off-by: Xiong Zhou <jencce.kernel at gmail.com>
---
drivers/gpu/drm/gma500/Kconfig |    1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/gma500/Kconfig b/drivers/gpu/drm/gma500/Kconfig
index 1188f0f..d64fc45 100644
--- a/drivers/gpu/drm/gma500/Kconfig
+++ b/drivers/gpu/drm/gma500/Kconfig
@@ -6,6 +6,7 @@ config DRM_GMA500
         select FB_CFB_IMAGEBLIT
         select DRM_KMS_HELPER
         select DRM_TTM
+        select ACPI_VIDEO if ACPI && X86 && BACKLIGHT_CLASS_DEVICE && VIDEO_OUTPUT_CONTROL && INPUT
 	help
 	  Say yes for an experimental 2D KMS framebuffer driver for the
 	  Intel GMA500 ('Poulsbo') and other Intel IMG based graphics