drm/amd/display: skip disable CRTC in seemless bootup case

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Resync FIFO is a workaround to write the same value to
DENTIST_DISPCLK_CNTL register after programming OTG_PIXEL_RATE_DIV
register, in case seemless boot, there is no OTG_PIXEL_RATE_DIV register
update, so skip CRTC disable when resync FIFO to avoid random FIFO error
and garbage.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Fudongwang <Fudong.Wang@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Fudongwang 2024-09-14 09:33:44 +08:00 • committed by Alex Deucher

parent 8cb028a1bb

commit 0e37e4b9af

1 changed files with 3 additions and 1 deletions

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drivers/gpu/drm/amd/display/dc/hwss/dcn314/dcn314_hwseq.c

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