a557761d8016cd1c97b9aeb857439af77dc90a88
[platform/kernel/linux-rpi.git] / Documentation / devicetree / bindings / iio / amplifiers / adi,hmc425a.yaml
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
7 title: HMC425A 6-bit Digital Step Attenuator
8
9 maintainers:
10   - Michael Hennerich <michael.hennerich@analog.com>
11   - Beniamin Bia <beniamin.bia@analog.com>
12
13 description: |
14   Digital Step Attenuator IIO device with gpio interface.
15   HMC425A 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz
16   https://www.analog.com/media/en/technical-documentation/data-sheets/hmc425A.pdf
17
18 properties:
19   compatible:
20     enum:
21       - adi,hmc425a
22
23   vcc-supply: true
24
25   ctrl-gpios:
26     description:
27       Must contain an array of 6 GPIO specifiers, referring to the GPIO pins
28       connected to the control pins V1-V6.
29     minItems: 6
30     maxItems: 6
31
32 required:
33   - compatible
34   - ctrl-gpios
35
36 additionalProperties: false
37
38 examples:
39   - |
40     #include <dt-bindings/gpio/gpio.h>
41     gpio_hmc425a: hmc425a {
42       compatible = "adi,hmc425a";
43       ctrl-gpios = <&gpio 40 GPIO_ACTIVE_HIGH>,
44         <&gpio 39 GPIO_ACTIVE_HIGH>,
45         <&gpio 38 GPIO_ACTIVE_HIGH>,
46         <&gpio 37 GPIO_ACTIVE_HIGH>,
47         <&gpio 36 GPIO_ACTIVE_HIGH>,
48         <&gpio 35 GPIO_ACTIVE_HIGH>;
49       vcc-supply = <&foo>;
50     };
51 ...