drm/amd/display: Wrap OTG disable workaround with FIFO control

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[Why]
The DIO FIFO will underflow if we turn off the OTG before we turn
off the FIFO.

Since this happens as part of the OTG workaround and we don't reset
the FIFO afterwards we see the error persist.

[How]
Add disable FIFO before the disable CRTC and enable FIFO after enabling
the CRTC.

Reviewed-by: Syed Hassan <Syed.Hassan@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Nicholas Kazlauskas 2022-09-08 14:17:01 -04:00 • committed by Alex Deucher

parent 936675464b

commit ec55a1c081

1 changed files with 10 additions and 1 deletions

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drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c

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