drm/amd/display: Add audio support for DFP type of active branch is DP case

Browse source

[Why]
Per DP spec, for active protocol convertor adaptor, DP source should enable audio
for DFP type is DP, HDMI or DP++. Current is_dp_active_dongle() checking is not
precise, which treat branch device default as active dongle. As a result, we will
mistakenly disable audio for DFP type is DP case.

[How]
Make is_dp_active_dongle() checking more precise for active dongle types.
Rename active diongle type as SST branch device in case confusion.

Signed-off-by: Dale Zhao <dale.zhao@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Dale Zhao 2021-04-19 16:38:55 +08:00 • committed by Alex Deucher

parent 81927e2808

commit 36c9137b1a

4 changed files with 21 additions and 14 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

17

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

View file

14

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

View file

2

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

View file

2

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

View file