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drm/amd/display: Move DCN314 DOMAIN power control to DMCUB

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commit e383b12709 upstream.

[Why]
DOMAIN power gating control is now required to be done via firmware
due to interlock with other power features. This is to avoid
intermittent issues in the LB memories.

[How]
If the firmware supports the command then use the new firmware as
the sequence can avoid potential display corruption issues.

The command will be ignored on firmware that does not support DOMAIN
power control and the pipes will remain always on - frequent PG cycling
can cause the issue to occur on the old sequence, so we should avoid it.

Reviewed-by: Hansen Dsouza <hansen.dsouza@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@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>
Cc: "Limonciello, Mario" <Mario.Limonciello@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nicholas Kazlauskas 2023-01-23 14:59:28 -05:00 • committed by Greg Kroah-Hartman
commit 4da108082a
4 changed files with 52 additions and 1 deletions
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