drm/amd/display: Enable DSC over eDP

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[why]
- Adding a DM interface to enable DSC over eDP on Linux
- DSC over eDP will allow to power savings by reducing
the bandwidth required to support panel's modes
- Apply link optimization algorithm to reduce link bandwidth
when DSC is enabled

[how]
- Read eDP panel's DSC capabilities
- Apply DSC policy on eDP panel based on its DSC capabilities
- Enable DSC encoder's on the pipe
- Enable DSC on panel's side by setting DSC_ENABLE DPCD register
- Adding link optimization algorithm to reduce link rate or lane
count based

Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Mikita Lipski 2021-10-20 08:51:04 -04:00 • committed by Alex Deucher

parent 2430be71c0

commit 2665f63a73

11 changed files with 255 additions and 7 deletions

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73

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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2

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c

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2

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

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162

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

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3

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

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1

drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c

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1

drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c

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8

drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c

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1

drivers/gpu/drm/amd/display/dc/inc/hw/dsc.h

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10

drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h

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1

drivers/gpu/drm/amd/display/include/ddc_service_types.h

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