It's useful for syncing async connector work like link retraining.
Cc: Manasi Navare <manasi.d.nav...@intel.com>
Cc: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vet...@intel.com>
---
drivers/gpu/drm/drm_atomic_helper.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_helper.c
b/drivers/gpu/drm/drm_atomic_helper.c
index 71d712f1b56a..ea781d55f2c1 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1791,7 +1791,8 @@ int drm_atomic_helper_setup_commit(struct
drm_atomic_state *state,
if (new_conn_state->crtc)
continue;
- commit = crtc_or_fake_commit(state, old_conn_state->crtc);
+ /* Always track connectors explicitly for e.g. link retraining.
*/
+ commit = crtc_or_fake_commit(state, new_conn_state->crtc ?:
old_conn_state->crtc);
if (!commit)
return -ENOMEM;
@@ -1805,10 +1806,7 @@ int drm_atomic_helper_setup_commit(struct
drm_atomic_state *state,
!try_wait_for_completion(&old_plane_state->commit->flip_done))
return -EBUSY;
- /*
- * Unlike connectors, always track planes explicitly for
- * async pageflip support.
- */
+ /* Always track planes explicitly for async pageflip support. */
commit = crtc_or_fake_commit(state, new_plane_state->crtc ?:
old_plane_state->crtc);
if (!commit)
return -ENOMEM;
--
2.15.0
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