drm/amd/display: On dce100, set clocks to 0 on suspend

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[Why]
When a dce100 asic was suspended, the clocks were not set to 0.
Upon resume, the new clock was compared to the existing clock,
they were found to be the same, and so the clock was not set.
This resulted in a pernicious blackscreen.

[How]
In atomic commit, check to see if there are any active pipes.
If no, set clocks to 0

Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

David Francis 2018-07-11 16:20:13 -04:00 • committed by Alex Deucher

parent aafded8885

commit 278ca8d677

1 changed files with 16 additions and 3 deletions

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drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c

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