drm_atomic_get_old_mst_topology_state
EXPORT_SYMBOL(drm_atomic_get_old_mst_topology_state);
drm_atomic_get_old_mst_topology_state(&state->base, &intel_dp->mst.mgr);
drm_atomic_get_old_mst_topology_state(state, mgr);
drm_atomic_get_old_mst_topology_state(struct drm_atomic_state *state,