drm/amd/display: turn off the mst hub before we do detection

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[why]
not turning off the mst hub before detection on reboot
causes us to not be able to light up displays with mst hook

[how]
on hw init, see if any displays are lit up. if so, turn them off

Signed-off-by: Joseph Gravenor <joseph.gravenor@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Joseph Gravenor 2020-01-28 10:38:22 -05:00 • committed by Alex Deucher

parent 15add0c2fe

commit 896dace8ec

1 changed files with 20 additions and 2 deletions

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

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