commit a4f45cf178f0d0ad4e516e020818b5f1c00e3d63
author Kristian Høgsberg <krh@bitplanet.net> Mon Oct 19 14:35:30 2009 -0400
committer Eric Anholt <eric@anholt.net> Thu Nov 05 14:47:13 2009 -0800
tree ab135d480b0f9d8b3e9c4b94216c647a840c30e0
parent f3cd474bb235f2331c1a6f579bdbf892386e5c7c

drm/i915: Support 30 bit depth modes

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>

drivers/gpu/drm/i915/i915_reg.h

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index d1be184..e8c6d00 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1915,6 +1915,7 @@
 #define   DISPPLANE_16BPP			(0x5<<26)
 #define   DISPPLANE_32BPP_NO_ALPHA		(0x6<<26)
 #define   DISPPLANE_32BPP			(0x7<<26)
+#define   DISPPLANE_32BPP_30BIT_NO_ALPHA	(0xa<<26)
 #define   DISPPLANE_STEREO_ENABLE		(1<<25)
 #define   DISPPLANE_STEREO_DISABLE		0
 #define   DISPPLANE_SEL_PIPE_MASK		(1<<24)

drivers/gpu/drm/i915/intel_display.c

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 8df8140..e4221b8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1289,7 +1289,10 @@
 		break;
 	case 24:
 	case 32:
-		dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
+		if (crtc->fb->depth == 30)
+			dspcntr |= DISPPLANE_32BPP_30BIT_NO_ALPHA;
+		else
+			dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
 		break;
 	default:
 		DRM_ERROR("Unknown color depth\n");