Commit deb11029 authored by Tom Chung's avatar Tom Chung Committed by Alex Deucher
Browse files

drm/amd/display: Preserve original aspect ratio in create stream 



[Why]
The original picture aspect ratio in mode struct may have chance be
overwritten with wrong aspect ratio data in create_stream_for_sink().
It will create a different VIC output and cause HDMI compliance test
failed.

[How]
Preserve the original picture aspect ratio data during create the
stream.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: default avatarAurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: default avatarTom Chung <chiahsuan.chung@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent a589fa17

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

+2 −0
Original line number Diff line number Diff line
@@ -6199,7 +6199,9 @@ create_stream_for_sink(struct drm_connector *connector, 
		if (recalculate_timing) {

			freesync_mode = get_highest_refresh_rate_mode(aconnector, false);

			drm_mode_copy(&saved_mode, &mode);

			saved_mode.picture_aspect_ratio = mode.picture_aspect_ratio;

			drm_mode_copy(&mode, freesync_mode);

			mode.picture_aspect_ratio = saved_mode.picture_aspect_ratio;

		} else {

			decide_crtc_timing_for_drm_display_mode(

					&mode, preferred_mode, scale);