drm/i915: Support 30 bit depth modes

Signed-off-by: Kristian Høgsberg <krh@redhat.com> Signed-off-by: Eric Anholt <eric@anholt.net>
git-mirror · Nov 5, 2009 · a4f45cf · a4f45cf
1 parent f3cd474
commit a4f45cf
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git 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)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
@@ -1289,7 +1289,10 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
 		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");