[Nouveau] [PATCH] nouveau: fixup scanout enable in nvc0_pm

[Maarten Lankhorst]

Fixes screen being black after changing performance level.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at canonical.com>
Cc: stable at vger.kernel.org [3.5+]
---
diff --git a/drivers/gpu/drm/nouveau/nvc0_pm.c b/drivers/gpu/drm/nouveau/nvc0_pm.c
index 7c95c44..4e712b1 100644
--- a/drivers/gpu/drm/nouveau/nvc0_pm.c
+++ b/drivers/gpu/drm/nouveau/nvc0_pm.c
@@ -557,7 +557,7 @@ prog_mem(struct drm_device *dev, struct nvc0_pm_state *info)
 	nouveau_mem_exec(&exec, info->perflvl);
 
 	if (dev_priv->chipset < 0xd0)
-		nv_wr32(dev, 0x611200, 0x00003300);
+		nv_wr32(dev, 0x611200, 0x00003330);
 	else
 		nv_wr32(dev, 0x62c000, 0x03030300);
 }