drm_atomic_plane_disabling
drm_atomic_plane_disabling(plane->state, new_plane_state))
if (drm_atomic_plane_disabling(plane->state, new_plane_state))
drm_atomic_plane_disabling(old_plane_state, plane_state) ||
disabling = drm_atomic_plane_disabling(old_plane_state,
disabling = drm_atomic_plane_disabling(old_plane_state, new_plane_state);