drm/amd/display: dsc mst re-compute pbn for changes on hub

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[why]
when unplug 1 dp from dsc mst hub, atomic_check new request
dc_state only include info for the unplug dp. this will not
trigger re-compute pbn for displays still connected to hub.

[how] all displays connected to dsc hub are available in
dc->current_state, by comparing dc->current_state and new
request from atomic_chceck, it will provide info of
displays connected to hub and do pbn re-compute.

Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Hersen Wu <hersenwu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Hersen Wu 2022-02-02 16:08:45 -05:00 • committed by Alex Deucher

parent ed72087064

commit c536555451

1 changed files with 45 additions and 8 deletions

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drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

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