drm/amd/display: Reset VRR config during resume

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[Why]
After resume the system, the new_crtc_state->vrr_infopacket does not
synchronize with the current state.  It will affect the
update_freesync_state_on_stream() does not update the state correctly.

The previous patch causes a PSR SU regression that cannot let panel go
into self-refresh mode.

[How]
Reset the VRR config during resume to force update the VRR config later.

Fixes: eb6dfbb7a9 ("drm/amd/display: Reset freesync config before update new state")
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Reviewed-by: Sun peng Li <sunpeng.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Tom Chung 2024-07-12 17:29:07 +08:00 • committed by Alex Deucher

parent 4981bd4749

commit df18a4de9e

1 changed files with 5 additions and 1 deletions

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drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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