diff options
| author | Leo Li <sunpeng.li@amd.com> | 2021-11-04 19:41:55 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-07-25 17:18:08 -0400 |
| commit | c13423c63f73ee2f9807fdb2a3a7e647421a8114 (patch) | |
| tree | ada707b14b5965915699fb66a3e6072a91d1c6ca /drivers/gpu/drm | |
| parent | b1babe8623f91a71a5acc34eb323c718e0413b74 (diff) | |
drm/amd/display: Copy crc_skip_count when duplicating CRTC state
[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>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c index 828189cb3441..594fe8a4d02b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c @@ -243,6 +243,7 @@ static struct drm_crtc_state *dm_crtc_duplicate_state(struct drm_crtc *crtc) state->freesync_config = cur->freesync_config; state->cm_has_degamma = cur->cm_has_degamma; state->cm_is_degamma_srgb = cur->cm_is_degamma_srgb; + state->crc_skip_count = cur->crc_skip_count; state->mpo_requested = cur->mpo_requested; /* TODO Duplicate dc_stream after objects are stream object is flattened */ |