rk_i2c_wait
if ((error = rk_i2c_wait(sc, RKI2C_IPD_STARTIPD)) != 0)
if ((error = rk_i2c_wait(sc, RKI2C_IPD_STOPIPD)) != 0)
if ((error = rk_i2c_wait(sc, RKI2C_IPD_MBTFIPD)) != 0)
if ((error = rk_i2c_wait(sc, RKI2C_IPD_MBRFIPD)) != 0)