1 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Cl 1 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/iio/dac/llt 4 $id: http://devicetree.org/schemas/iio/dac/lltc,ltc2632.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Linear Technology LTC263x 12-/10-/8-Bit 7 title: Linear Technology LTC263x 12-/10-/8-Bit Rail-to-Rail DAC
8 8
9 maintainers: 9 maintainers:
10 - Michael Hennerich <michael.hennerich@analog 10 - Michael Hennerich <michael.hennerich@analog.com>
11 11
12 description: | 12 description: |
13 Bindings for the Linear Technology LTC2632/2 13 Bindings for the Linear Technology LTC2632/2634/2636 DAC
14 Datasheet can be found here: https://www.ana 14 Datasheet can be found here: https://www.analog.com/media/en/technical-documentation/data-sheets/LTC263[246].pdf
15 15
16 properties: 16 properties:
17 compatible: 17 compatible:
18 enum: 18 enum:
19 - lltc,ltc2632-l12 19 - lltc,ltc2632-l12
20 - lltc,ltc2632-l10 20 - lltc,ltc2632-l10
21 - lltc,ltc2632-l8 21 - lltc,ltc2632-l8
22 - lltc,ltc2632-h12 22 - lltc,ltc2632-h12
23 - lltc,ltc2632-h10 23 - lltc,ltc2632-h10
24 - lltc,ltc2632-h8 24 - lltc,ltc2632-h8
25 - lltc,ltc2634-l12 25 - lltc,ltc2634-l12
26 - lltc,ltc2634-l10 26 - lltc,ltc2634-l10
27 - lltc,ltc2634-l8 27 - lltc,ltc2634-l8
28 - lltc,ltc2634-h12 28 - lltc,ltc2634-h12
29 - lltc,ltc2634-h10 29 - lltc,ltc2634-h10
30 - lltc,ltc2634-h8 30 - lltc,ltc2634-h8
31 - lltc,ltc2636-l12 31 - lltc,ltc2636-l12
32 - lltc,ltc2636-l10 32 - lltc,ltc2636-l10
33 - lltc,ltc2636-l8 33 - lltc,ltc2636-l8
34 - lltc,ltc2636-h12 34 - lltc,ltc2636-h12
35 - lltc,ltc2636-h10 35 - lltc,ltc2636-h10
36 - lltc,ltc2636-h8 36 - lltc,ltc2636-h8
37 37
38 reg: 38 reg:
39 maxItems: 1 39 maxItems: 1
40 40
41 spi-max-frequency: 41 spi-max-frequency:
42 maximum: 2000000 42 maximum: 2000000
43 43
44 vref-supply: 44 vref-supply:
45 description: 45 description:
46 Phandle to the external reference voltag 46 Phandle to the external reference voltage supply. This should
47 only be set if there is an external refe 47 only be set if there is an external reference voltage connected to the VREF
48 pin. If the property is not set the inte 48 pin. If the property is not set the internal reference is used.
49 49
50 required: 50 required:
51 - compatible 51 - compatible
52 - reg 52 - reg
53 53
54 additionalProperties: false 54 additionalProperties: false
55 55
56 examples: 56 examples:
57 - | 57 - |
58 vref: regulator-vref { 58 vref: regulator-vref {
59 compatible = "regulator-fixed"; 59 compatible = "regulator-fixed";
60 regulator-name = "vref-ltc2632"; 60 regulator-name = "vref-ltc2632";
61 regulator-min-microvolt = <1250000>; 61 regulator-min-microvolt = <1250000>;
62 regulator-max-microvolt = <1250000>; 62 regulator-max-microvolt = <1250000>;
63 regulator-always-on; 63 regulator-always-on;
64 }; 64 };
65 65
66 spi { 66 spi {
67 #address-cells = <1>; 67 #address-cells = <1>;
68 #size-cells = <0>; 68 #size-cells = <0>;
69 69
70 dac@0 { 70 dac@0 {
71 compatible = "lltc,ltc2632-l12"; 71 compatible = "lltc,ltc2632-l12";
72 reg = <0>; /* CS0 */ 72 reg = <0>; /* CS0 */
73 spi-max-frequency = <1000000>; 73 spi-max-frequency = <1000000>;
74 vref-supply = <&vref>; 74 vref-supply = <&vref>;
75 }; 75 };
76 }; 76 };
77 ... 77 ...
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