linux/Documentation/devicetree/bindings/spi/spi-sc18is602.txt
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   1NXP SC18IS602/SCIS603
   2
   3Required properties:
   4        - compatible : Should be one of
   5                "nxp,sc18is602"
   6                "nxp,sc18is602b"
   7                "nxp,sc18is603"
   8        - reg: I2C bus address
   9
  10Optional properties:
  11        - clock-frequency : external oscillator clock frequency. If not
  12          specified, the SC18IS602 default frequency (7372000) will be used.
  13
  14The clock-frequency property is relevant and needed only if the chip has an
  15external oscillator (SC18IS603).
  16
  17Example:
  18
  19        sc18is603@28 {
  20                compatible = "nxp,sc18is603";
  21                reg = <0x28>;
  22                clock-frequency = <14744000>;
  23        }
  24