From: "Jerry (Fangzhi) Zuo" <Jerry.Zuo@amd.com>
Date: Wed, 17 Jan 2018 13:24:28 -0500
Subject: drm/amd/display: Fixed non-native modes not lighting up
Git-commit: f783577c85c00da6a8b226a89a83789d2f105c63
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
No-fix: 4a2df0d1f28eba7bd49ad1a1527af996f54df137
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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2445,7 +2445,9 @@ create_stream_for_sink(struct amdgpu_dm_
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);