drm/amd/display: Fixed hardware power down bypass during headless boot

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[Why]
During headless boot, DIG may be on which causes HW/SW discrepancies.
To avoid this we power down hardware on boot if DIG is turned on. With
introduction of multiple eDP, hardware power down is being bypassed
under certain conditions.

[How]
Fixed hardware power down bypass, and ensured hardware will power down
if DIG is on and seamless boot is not enabled.

Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Jake Wang <haonan.wang2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Jake Wang 2021-06-30 13:55:50 -04:00 • committed by Alex Deucher

parent d93d535636

commit 3addbde269

3 changed files with 27 additions and 30 deletions

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25

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

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25

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c

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5

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c

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