0001 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
0002 %YAML 1.2
0003 ---
0004 $id: "http://devicetree.org/schemas/iio/dac/lltc,ltc2632.yaml#"
0005 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
0006
0007 title: Linear Technology LTC263x 12-/10-/8-Bit Rail-to-Rail DAC
0008
0009 maintainers:
0010 - Michael Hennerich <michael.hennerich@analog.com>
0011
0012 description: |
0013 Bindings for the Linear Technology LTC2632/2634/2636 DAC
0014 Datasheet can be found here: https://www.analog.com/media/en/technical-documentation/data-sheets/LTC263[246].pdf
0015
0016 properties:
0017 compatible:
0018 enum:
0019 - lltc,ltc2632-l12
0020 - lltc,ltc2632-l10
0021 - lltc,ltc2632-l8
0022 - lltc,ltc2632-h12
0023 - lltc,ltc2632-h10
0024 - lltc,ltc2632-h8
0025 - lltc,ltc2634-l12
0026 - lltc,ltc2634-l10
0027 - lltc,ltc2634-l8
0028 - lltc,ltc2634-h12
0029 - lltc,ltc2634-h10
0030 - lltc,ltc2634-h8
0031 - lltc,ltc2636-l12
0032 - lltc,ltc2636-l10
0033 - lltc,ltc2636-l8
0034 - lltc,ltc2636-h12
0035 - lltc,ltc2636-h10
0036 - lltc,ltc2636-h8
0037
0038 reg:
0039 maxItems: 1
0040
0041 spi-max-frequency:
0042 maximum: 2000000
0043
0044 vref-supply:
0045 description:
0046 Phandle to the external reference voltage supply. This should
0047 only be set if there is an external reference voltage connected to the VREF
0048 pin. If the property is not set the internal reference is used.
0049
0050 required:
0051 - compatible
0052 - reg
0053
0054 additionalProperties: false
0055
0056 examples:
0057 - |
0058 vref: regulator-vref {
0059 compatible = "regulator-fixed";
0060 regulator-name = "vref-ltc2632";
0061 regulator-min-microvolt = <1250000>;
0062 regulator-max-microvolt = <1250000>;
0063 regulator-always-on;
0064 };
0065
0066 spi {
0067 #address-cells = <1>;
0068 #size-cells = <0>;
0069
0070 dac@0 {
0071 compatible = "lltc,ltc2632-l12";
0072 reg = <0>; /* CS0 */
0073 spi-max-frequency = <1000000>;
0074 vref-supply = <&vref>;
0075 };
0076 };
0077 ...
