drm/amd/display: handle active dongle port type is DP++ or DP case

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[Why]:
Some active dongles have DP++ port and DP port at the same time. Current
code doesn't cover DP++ case and processes as default DVI case, in which
audio is disabled. Because of dual mode, DP case is also treat as DVI case
for the other port.

[How]:
According DP 1.4 spec, add DP++ procedure similar with HDMI case. Also
add None dongle type for DP case.

Signed-off-by: Dale Zhao <dale.zhao@amd.com>
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Dale Zhao 2019-07-10 17:36:53 +08:00 • committed by Alex Deucher

parent b791f9dc2d

commit b70666934b

2 changed files with 21 additions and 11 deletions

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30

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

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2

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

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