From f783577c85c00da6a8b226a89a83789d2f105c63 Mon Sep 17 00:00:00 2001
From: "Jerry (Fangzhi) Zuo" <Jerry.Zuo@amd.com>
Date: Wed, 17 Jan 2018 13:24:28 -0500
Subject: [PATCH] drm/amd/display: Fixed non-native modes not lighting up

There is no need to call drm_mode_set_crtcinfo() again once
crtc timing is decided. Otherwise non-native/unsupported timing
might get overwritten.

Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 5928d9f0e4ef9..e27f4e65dcf00 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2439,7 +2439,9 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
 				dm_state ? (dm_state->scaling != RMX_OFF) : false);
 	}
 
-	drm_mode_set_crtcinfo(&mode, 0);
+	if (!dm_state)
+		drm_mode_set_crtcinfo(&mode, 0);
+
 	fill_stream_properties_from_drm_display_mode(stream,
 			&mode, &aconnector->base);
 	update_stream_scaling_settings(&mode, dm_state, stream);
-- 
2.30.2