1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/iio/amplifiers/adi,hmc425a.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: HMC425A 6-bit Digital Step Attenuator
8
9maintainers:
10  - Michael Hennerich <michael.hennerich@analog.com>
11
12description: |
13  Digital Step Attenuator IIO device with gpio interface.
14  HMC425A 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz
15  https://www.analog.com/media/en/technical-documentation/data-sheets/hmc425A.pdf
16
17properties:
18  compatible:
19    enum:
20      - adi,hmc425a
21
22  vcc-supply: true
23
24  ctrl-gpios:
25    description:
26      Must contain an array of 6 GPIO specifiers, referring to the GPIO pins
27      connected to the control pins V1-V6.
28    minItems: 6
29    maxItems: 6
30
31required:
32  - compatible
33  - ctrl-gpios
34
35additionalProperties: false
36
37examples:
38  - |
39    #include <dt-bindings/gpio/gpio.h>
40    gpio_hmc425a: hmc425a {
41      compatible = "adi,hmc425a";
42      ctrl-gpios = <&gpio 40 GPIO_ACTIVE_HIGH>,
43        <&gpio 39 GPIO_ACTIVE_HIGH>,
44        <&gpio 38 GPIO_ACTIVE_HIGH>,
45        <&gpio 37 GPIO_ACTIVE_HIGH>,
46        <&gpio 36 GPIO_ACTIVE_HIGH>,
47        <&gpio 35 GPIO_ACTIVE_HIGH>;
48      vcc-supply = <&foo>;
49    };
50...
51