From b44acad479959178a8ab0f7cbfa894bd554b0771 Mon Sep 17 00:00:00 2001
From: Yongqiang Sun <yongqiang.sun@amd.com>
Date: Mon, 6 Mar 2017 14:58:59 -0500
Subject: [PATCH 0263/4131] drm/amd/display: Do not copy bottom pipe when map
 resource.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index f1b1dae..c38f71e 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1134,6 +1134,9 @@ enum dc_status resource_map_pool_resources(
 			if (!are_stream_backends_same(old_pipe_ctx->stream, stream))
 				continue;
 
+			if (old_pipe_ctx->top_pipe)
+				continue;
+
 			pipe_ctx->stream = stream;
 			copy_pipe_ctx(old_pipe_ctx, pipe_ctx);
 
-- 
2.7.4