drm/amd/display: add way to determine if link is active

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[Why]
Need to understand whether link is active aside from stream state.
This could be used to check what links are enabled by GOP.

[How]
Store link_active state in link status and initialize it by checking
if the DIG is enabled.
Keep it updated on every link enable and disable

Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Anthony Koo 2019-01-20 01:32:55 -05:00 • committed by Alex Deucher

parent a122b62d8a

commit ff582b6146

3 changed files with 10 additions and 0 deletions

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4

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

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1

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

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5

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

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