pxa2x0_i2c_wait
error = pxa2x0_i2c_wait(sc, ISR_ITE, flags);
error = pxa2x0_i2c_wait(sc, ISR_IRF | ISR_ALD, flags);
error = pxa2x0_i2c_wait(sc, ISR_ITE | ISR_ALD, flags);
int pxa2x0_i2c_wait(struct pxa2x0_i2c_softc *, int, int);