drm/amdgpu/display/dc: do blocked MST topology discovery at resume from S3/S4

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Why:
When resume from sleep or hiberation, blocked MST Topology discovery might
need to be used.

How:
Added "DETECT_REASON_RESUMEFROMS3S4" to enum dc_detect_reason; use it to
require blocked MST Topology discovery.

Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Bing Guo <Bing.Guo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Bing Guo 2022-01-20 18:34:24 -05:00 • committed by Alex Deucher

parent 77a35bb579

commit b650075909

2 changed files with 2 additions and 1 deletions

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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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