https://github.com/torvalds/linux
Revision 85096a73f4dc223b5848e41ce40afc5ee913079e authored by Nicholas Kazlauskas on 08 September 2022, 15:11:47 UTC, committed by Alex Deucher on 27 September 2022, 21:56:51 UTC
[Why]
We rely on DMCUB to do this when disabling the link but it should
actually come before we disable the DP VID stream.

If we don't then the FIFO can end up with underflow that persists
the next time it's enabled.

[How]
Add a DCN314 specific blank sequence that will disable the DIG FIFO
first.

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>
1 parent ec669ef
History
Tip revision: 85096a73f4dc223b5848e41ce40afc5ee913079e authored by Nicholas Kazlauskas on 08 September 2022, 15:11:47 UTC
drm/amd/display: Add explicit FIFO disable for DP blank
Tip revision: 85096a7
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