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From da38ac38102917bb1b77b92e38126317a1d85ec4 Mon Sep 17 00:00:00 2001
From: Shirish S <shirish.s@amd.com>
Date: Wed, 7 Mar 2018 12:36:11 +0530
Subject: [PATCH 3698/4131] drm/amd/display: validate plane format on primary
plane
In dce110, the plane configuration is such that plane 0
or the primary plane should be rendered with only RGB data.
This patch adds the validation to ensure that no video data
is rendered on plane 0.
Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
---
drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
index 830cbbc..b1f14be 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
@@ -879,6 +879,13 @@ static bool dce110_validate_surface_sets(
plane->src_rect.height > 1080))
return false;
+ /* we don't have the logic to support underlay
+ * only yet so block the use case where we get
+ * NV12 plane as top layer
+ */
+ if (j == 0)
+ return false;
+
/* irrespective of plane format,
* stream should be RGB encoded
*/
--
2.7.4
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