PM2_RE_DITHER_MODE
bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_DITHER_MODE,
bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_DITHER_MODE, 0);
bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_DITHER_MODE, 0);
bus_space_write_4(sc->sc_memt, sc->sc_regh, PM2_RE_DITHER_MODE, 0);