tree c379773c392480ebb91a1b21c5a57e4fe4459237
parent aba3c3fede54e55573954fa7a7e28ec304557e50
author Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> 1636959097 -0500
committer Alex Deucher <alexander.deucher@amd.com> 1638392732 -0500

drm/amd/display: Fix for otg synchronization logic

[Why]
During otg sync trigger, plane states are used to decide whether the otg
is already synchronized or not. There are scenarions when otgs are
disabled without plane state getting disabled and in such case the otg is
excluded from synchronization.

[How]
Introduced pipe_idx_syncd in pipe_ctx that tracks each otgs master pipe.
When a otg is disabled/enabled, pipe_idx_syncd is reset to itself.
On sync trigger, pipe_idx_syncd is checked to decide whether a otg is
already synchronized and the otg is further included or excluded from
synchronization.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Mustapha Ghaddar <mustapha.ghaddar@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: meenakshikumar somasundaram <meenakshikumar.somasundaram@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>