drm/amd/display: Fix primary EDP link detection

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[HOW&WHY]
EDP link detection must
be updated to support a primary EDP with a
link index of greater than 0.

* SWDEV-342936 - dc: DSC bringup for SAG 1.5

[WHY]
SmartAccess Graphics 1.5 (a.k.a SmartMux 1.5)
requires seamless switching between GPUs
with DSC enabled.

[HOW]
Moved DSC programming to
apply_single_control_ctx_to_hw before the stream
enablement logic to ensure the CRC checker provides valid
values for non-black frames
allowing the system to come out of forced PSR on
d2i.

Added additional logic to both generate a black
frame through setVisibility calls and keep track
of the CRCs values for this black frame when
coming out of forced PSR.

Updating logic for DalRegKey_DisableDSC to disable
DSC on EDP and all ports for systems.

[CLEANED]
dc: Moved DSC programming to before stream enablement

[HOW&WHY]
Moved DSC programming to
apply_single_control_ctx_to_hw before the stream
enablement logic.

Co-authored-by: sregolui <sregolui@amd.com>
Reviewed-by: Jayendran Ramani <Jayendran.Ramani@amd.com>
Reviewed-by: Harry Vanzylldejong <Harry.Vanzylldejong@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: sregolui <sregolui@amd.com>
Signed-off-by: Iswara Nagulendran <Iswara.Nagulendran@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Iswara Nagulendran 2022-08-19 14:10:08 -04:00 • committed by Alex Deucher

parent b1bdb5ebb0

commit 4b91ac9e38

2 changed files with 13 additions and 12 deletions

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12

drivers/gpu/drm/amd/display/dc/core/dc_link.c

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13

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

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