drm/amd/display: Copy crc_skip_count when duplicating CRTC state

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[Why]

crc_skip_count is used to track how many frames to skip to allow the OTG
CRC engine to "warm up" before it outputs correct CRC values.
Experimentally, this seems to be 2 frames.

When duplicating CRTC states, this value was not copied to the
duplicated state. Therefore, when this state is committed, we will
needlessly wait 2 frames before outputing CRC values. Even if the CRC
engine is already warmed up.

[How]

Copy the crc_skip_count as part of dm_crtc_duplicate_state.

Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Leo Li 2021-11-04 19:41:55 -04:00 • committed by Alex Deucher

parent b1babe8623

commit c13423c63f

1 changed files with 1 additions and 0 deletions

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

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