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drm/amd/display: Multi display synchronization logic

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This feature synchronizes multiple displays with various timings
to a display with the highest refresh rate
it is enabled if edid caps flag multi_display_sync is set to one

There are limitations on refresh rates allowed
that can be synchronized. That would
prevent from underflow and other potential
corruptions.

Multi display synchronization is using the
same functions as timing_sync in order to minimize
redunduncy and decision to disable synchronization is
based on trigger parametre set in DM

Feature is developed for DCN1 and DCE11

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Mikita Lipski <Mikita.Lipski@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mikita Lipski 2017-10-17 15:29:22 -04:00 • committed by Alex Deucher
commit fa2123dbcc
11 changed files with 456 additions and 66 deletions
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