I2S_INTCR
RK_I2S_WRITE_4(sc, I2S_INTCR, val);
val = RK_I2S_READ_4(sc, I2S_INTCR);
RK_I2S_WRITE_4(sc, I2S_INTCR, val);
val = RK_I2S_READ_4(sc, I2S_INTCR);
RK_I2S_WRITE_4(sc, I2S_INTCR, val);