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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>
This commit is contained in:
Calvin Hou 2021-04-07 15:07:45 -04:00 committed by Alex Deucher
parent 36c9137b1a
commit 70c14a1d7e
1 changed files with 0 additions and 6 deletions
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6
drivers/gpu/drm/amd/display/dc/core/dc_resource.c
View File

@ -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;