drm/amd/display: Read USB4 DP tunneling data from DPCD.

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[Why]
We requires information from DPCD in order to identify USB4 DP
tunneling targets.

[How]
Add USB4 DP tunneling fields to DPCD struct and populate these fields
during sink detection.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Jimmy Kizito <Jimmy.Kizito@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Jimmy Kizito 2021-05-14 19:56:19 -04:00 • committed by Alex Deucher

parent 71af9d465b

commit e8536806b0

4 changed files with 67 additions and 2 deletions

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30

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

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1

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

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31

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

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7

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

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