1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/iio/amplifiers/adi,hmc425a.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: HMC425A 6-bit Digital Step Attenuator
10 - Michael Hennerich <michael.hennerich@analog.com>
11 - Beniamin Bia <beniamin.bia@analog.com>
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
27 Must contain an array of 6 GPIO specifiers, referring to the GPIO pins
28 connected to the control pins V1-V6.
36 additionalProperties: false
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>;