msiof_write
msiof_write(priv, reg, new);
msiof_write(priv, SITMDR1, val);
msiof_write(priv, SITMDR2, val | FIELD_PREP(SIMDR2_GRP, 1));
msiof_write(priv, SITMDR3, val);
msiof_write(priv, SIRMDR1, val);
msiof_write(priv, SIRMDR2, val | FIELD_PREP(SIMDR2_GRP, 1));
msiof_write(priv, SIRMDR3, val);
msiof_write(priv, SIFCTR,
msiof_write(priv, SISTR, SISTR_ERR_TX | SISTR_ERR_RX);