nxphdmi_read
int nxphdmi_read(struct nxphdmi_softc *, uint16_t, uint8_t *);
res |= nxphdmi_read(sc, TDA_VERSION, &data);
res |= nxphdmi_read(sc, TDA_VERSION_MSB, &data);
ret |= nxphdmi_read(sc, reg, &buf);
ret |= nxphdmi_read(sc, reg, &buf);
nxphdmi_read(sc, TDA_INT_FLAGS_2, ®);