MLXCPLD_I2C_SMBUS_BLK_BIT
if (priv->smbus_block && (val & MLXCPLD_I2C_SMBUS_BLK_BIT)) {
val |= MLXCPLD_I2C_SMBUS_BLK_BIT;
if (val & MLXCPLD_I2C_SMBUS_BLK_BIT)