Kernel-4.18.0-80.el8_ltc2632

Linear Technology LTC2632 DAC device driver

Required properties:

• compatible: Has to contain one of the following:
  lltc,ltc2632-l12
  lltc,ltc2632-l10
  lltc,ltc2632-l8
  lltc,ltc2632-h12
  lltc,ltc2632-h10
  lltc,ltc2632-h8

Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
apply. In particular, “reg” and “spi-max-frequency” properties must be given.

Optional properties:
- vref-supply: Phandle to the external reference voltage supply. This should
only be set if there is an external reference voltage connected to the VREF
pin. If the property is not set the internal reference is used.

Example:

vref: regulator-vref {
    compatible = "regulator-fixed";
    regulator-name = "vref-ltc2632";
    regulator-min-microvolt = <1250000>;
    regulator-max-microvolt = <1250000>;
    regulator-always-on;
};

spi_master {
    dac: ltc2632@0 {
        compatible = "lltc,ltc2632-l12";
        reg = <0>; /* CS0 */
        spi-max-frequency = <1000000>;
        vref-supply = <&vref>; /* optional */
    };
};