Linear Technology LTC2632 DAC device driver
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Required properties:
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- compatible: Has to contain one of the following:
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lltc,ltc2632-l12
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lltc,ltc2632-l10
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lltc,ltc2632-l8
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lltc,ltc2632-h12
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lltc,ltc2632-h10
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lltc,ltc2632-h8
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Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
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apply. In particular, "reg" and "spi-max-frequency" properties must be given.
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Optional properties:
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- vref-supply: Phandle to the external reference voltage supply. This should
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only be set if there is an external reference voltage connected to the VREF
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pin. If the property is not set the internal reference is used.
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Example:
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vref: regulator-vref {
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compatible = "regulator-fixed";
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regulator-name = "vref-ltc2632";
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regulator-min-microvolt = <1250000>;
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regulator-max-microvolt = <1250000>;
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regulator-always-on;
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};
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spi_master {
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dac: ltc2632@0 {
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compatible = "lltc,ltc2632-l12";
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reg = <0>; /* CS0 */
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spi-max-frequency = <1000000>;
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vref-supply = <&vref>; /* optional */
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};
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};
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