drm/amd/display: trigger timing sync only if TG is running

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[Why&How]
If the timing generator isnt running, it does not make sense to trigger
a sync on the corresponding OTG. Check this condition before starting.
Otherwise, this will cause error like:

*ERROR* GSL: Timeout on reset trigger!

Fixes: dc55b106ad ("drm/amd/display: Disable phantom OTG after enable for plane disable")
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Aurabindo Pillai 2022-11-21 15:48:23 -05:00 • committed by Alex Deucher

parent c6ac25f646

commit 5f9f97c02d

1 changed files with 6 additions and 0 deletions

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drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

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