dai_byphandle
sc->sc_dai_codec[i] = dai_byphandle(dais[i]);
sc->sc_dai_cpu = dai_byphandle(OF_getpropint(node, "sound-dai", 0));
sc->sc_dai_codec = dai_byphandle(OF_getpropint(node, "sound-dai", 0));
sc->sc_dai_aux[i] = dai_byphandle(auxdevs[i]);
struct dai_device *dai_byphandle(uint32_t);