Commit 70c14a1d authored Apr 07, 2021 by Calvin Hou Committed by Alex Deucher May 10, 2021

drm/amd/display: remove checking sink in is_timing_changed



[Why]
Sometimes, such as sleep wake, the link->local sink pointer changed,
but the dc_stream_state->sink pointer is not changed. The checking
of timing_changed reports wrong result, lead to link tear down
unexpected wrongly.

[How]
SST compare local sink, MST compare proper remote link.

Signed-off-by: Calvin Hou <Calvin.Hou@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 36c9137b

drivers/gpu/drm/amd/display/dc/core/dc_resource.c

+0 −6

Original line number	Diff line number	Diff line
		@@ -1706,12 +1706,6 @@ static bool is_timing_changed(struct dc_stream_state *cur_stream,
		if (cur_stream == NULL)
		return true;

		/* If sink pointer changed, it means this is a hotplug, we should do
		* full hw setting.
		*/
		if (cur_stream->sink != new_stream->sink)
		return true;

		/* If output color space is changed, need to reprogram info frames */
		if (cur_stream->output_color_space != new_stream->output_color_space)
		return true;