drm/amd/display: Power down hw blocks on boot

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[WHY]
On headless boot a DIG may be turned on by VBIOS on RN.  This leads to
display_count being non-zero in hybrid graphics cases leading to SMU
DISPLAY_OFF message not being sent.

[HOW]
Power down hardware on boot
if seamless boot is not occurring
(power_down_display_on_boot == 1)

Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Sung Lee 2020-04-05 16:40:45 -04:00 • committed by Alex Deucher

parent 2deade5ede

commit b3a941df69

3 changed files with 34 additions and 0 deletions

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29

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

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1

drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c

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4

drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h

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