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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/amplifiers/adi,hmc425a.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: HMC425A 6-bit Digital Step Attenuator
maintainers:
- Michael Hennerich <michael.hennerich@analog.com>
- Beniamin Bia <beniamin.bia@analog.com>
description: |
Digital Step Attenuator IIO device with gpio interface.
HMC425A 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz
https://www.analog.com/media/en/technical-documentation/data-sheets/hmc425A.pdf
properties:
compatible:
enum:
- adi,hmc425a
vcc-supply: true
ctrl-gpios:
description:
Must contain an array of 6 GPIO specifiers, referring to the GPIO pins
connected to the control pins V1-V6.
minItems: 6
maxItems: 6
required:
- compatible
- ctrl-gpios
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
gpio_hmc425a: hmc425a {
compatible = "adi,hmc425a";
ctrl-gpios = <&gpio 40 GPIO_ACTIVE_HIGH>,
<&gpio 39 GPIO_ACTIVE_HIGH>,
<&gpio 38 GPIO_ACTIVE_HIGH>,
<&gpio 37 GPIO_ACTIVE_HIGH>,
<&gpio 36 GPIO_ACTIVE_HIGH>,
<&gpio 35 GPIO_ACTIVE_HIGH>;
vcc-supply = <&foo>;
};
...
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