1Linear Technology LTC2632 DAC device driver
2
3Required properties:
4 - compatible: Has to contain one of the following:
5	lltc,ltc2632-l12
6	lltc,ltc2632-l10
7	lltc,ltc2632-l8
8	lltc,ltc2632-h12
9	lltc,ltc2632-h10
10	lltc,ltc2632-h8
11
12Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
13apply. In particular, "reg" and "spi-max-frequency" properties must be given.
14
15Optional properties:
16	- vref-supply: Phandle to the external reference voltage supply. This should
17	  only be set if there is an external reference voltage connected to the VREF
18	  pin. If the property is not set the internal reference is used.
19
20Example:
21
22	vref: regulator-vref {
23		compatible = "regulator-fixed";
24		regulator-name = "vref-ltc2632";
25		regulator-min-microvolt = <1250000>;
26		regulator-max-microvolt = <1250000>;
27		regulator-always-on;
28	};
29
30	spi_master {
31		dac: ltc2632@0 {
32			compatible = "lltc,ltc2632-l12";
33			reg = <0>; /* CS0 */
34			spi-max-frequency = <1000000>;
35			vref-supply = <&vref>; /* optional */
36		};
37	};
38