xref: /linux/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml (revision 79d2e1919a2728ef49d938eb20ebd5903c14dfb0) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/iio/dac/adi,ad5791.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Analog Devices AD5791 and similar DACs
8
9maintainers:
10  - Michael Hennerich <michael.hennerich@analog.com>
11  - Jonathan Cameron <jic23@kernel.org>
12
13properties:
14
15  compatible:
16    enum:
17      - adi,ad5760
18      - adi,ad5780
19      - adi,ad5781
20      - adi,ad5790
21      - adi,ad5791
22
23  reg:
24    maxItems: 1
25
26  vdd-supply: true
27  vss-supply: true
28
29  vcc-supply:
30    description:
31      Supply that powers the chip.
32
33  iovcc-supply:
34    description:
35      Supply for the digital interface.
36
37  vrefp-supply:
38    description:
39      Positive referance input voltage range. From 5v to (vdd - 2.5)
40
41  vrefn-supply:
42    description:
43      Negative referance input voltage range. From (vss + 2.5) to 0.
44
45  adi,rbuf-gain2-en:
46    description: Specify to allow an external amplifier to be connected in a
47      gain of two configuration.
48    type: boolean
49
50  reset-gpios:
51    maxItems: 1
52
53  clear-gpios:
54    maxItems: 1
55
56  ldac-gpios:
57    description:
58      LDAC pin to be used as a hardware trigger to update the DAC channels.
59    maxItems: 1
60
61required:
62  - compatible
63  - reg
64  - vdd-supply
65  - vss-supply
66  - vcc-supply
67  - iovcc-supply
68  - vrefp-supply
69  - vrefn-supply
70
71allOf:
72  - $ref: /schemas/spi/spi-peripheral-props.yaml#
73
74unevaluatedProperties: false
75
76examples:
77  - |
78    #include <dt-bindings/gpio/gpio.h>
79    spi {
80        #address-cells = <1>;
81        #size-cells = <0>;
82
83        dac@0 {
84            compatible = "adi,ad5791";
85            reg = <0>;
86            vss-supply = <&dac_vss>;
87            vdd-supply = <&dac_vdd>;
88            vcc-supply = <&dac_vcc>;
89            iovcc-supply = <&dac_iovcc>;
90            vrefp-supply = <&dac_vrefp>;
91            vrefn-supply = <&dac_vrefn>;
92            reset-gpios = <&gpio_bd 16 GPIO_ACTIVE_LOW>;
93            clear-gpios = <&gpio_bd 17 GPIO_ACTIVE_LOW>;
94            ldac-gpios = <&gpio_bd 18 GPIO_ACTIVE_HIGH>;
95        };
96    };
97...
98