to_omap_plane_state
new_omap_state = to_omap_plane_state(new_state);
old_omap_state = to_omap_plane_state(old_state);
struct omap_plane_state *omap_state = to_omap_plane_state(new_plane_state);
struct omap_plane_state *omap_state = to_omap_plane_state(state);
current_state = to_omap_plane_state(plane->state);
struct omap_plane_state *omap_state = to_omap_plane_state(state);
new_omap_state = to_omap_plane_state(new_state);
old_omap_state = to_omap_plane_state(old_state);