The current api doesn't take into account that whenever properties like rotation or z-pos change we have to wait for vblank. To make sure that we wait correctly, err on the side of caution and wait whenever a plane is added to state.
Signed-off-by: Maarten Lankhorst maarten.lankhorst@linux.intel.com --- drivers/gpu/drm/drm_atomic_helper.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index ccf0bed9bf4a..fdeaea84a3b7 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -1123,11 +1123,7 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev, for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { struct drm_crtc_state *new_crtc_state = crtc->state;
- if (!new_crtc_state->active) - continue; - - if (!drm_atomic_helper_framebuffer_changed(dev, - old_state, crtc)) + if (!new_crtc_state->active || !new_crtc_state->planes_changed) continue;
ret = drm_crtc_vblank_get(crtc);