* Maxim (Dallas) DS26522 Dual T1/E1/J1 Transceiver Required properties: - compatible: Should contain "maxim,ds26522". - reg: SPI CS. - spi-max-frequency: SPI clock. Example: slic@1 { compatible = "maxim,ds26522"; reg = <1>; spi-max-frequency = <2000000>; /* input clock */ };