1*4882a593Smuzhiyun# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*4882a593Smuzhiyun%YAML 1.2 3*4882a593Smuzhiyun--- 4*4882a593Smuzhiyun$id: http://devicetree.org/schemas/iio/amplifiers/adi,hmc425a.yaml# 5*4882a593Smuzhiyun$schema: http://devicetree.org/meta-schemas/core.yaml# 6*4882a593Smuzhiyun 7*4882a593Smuzhiyuntitle: HMC425A 6-bit Digital Step Attenuator 8*4882a593Smuzhiyun 9*4882a593Smuzhiyunmaintainers: 10*4882a593Smuzhiyun - Michael Hennerich <michael.hennerich@analog.com> 11*4882a593Smuzhiyun - Beniamin Bia <beniamin.bia@analog.com> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyundescription: | 14*4882a593Smuzhiyun Digital Step Attenuator IIO device with gpio interface. 15*4882a593Smuzhiyun HMC425A 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz 16*4882a593Smuzhiyun https://www.analog.com/media/en/technical-documentation/data-sheets/hmc425A.pdf 17*4882a593Smuzhiyun 18*4882a593Smuzhiyunproperties: 19*4882a593Smuzhiyun compatible: 20*4882a593Smuzhiyun enum: 21*4882a593Smuzhiyun - adi,hmc425a 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun vcc-supply: true 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun ctrl-gpios: 26*4882a593Smuzhiyun description: 27*4882a593Smuzhiyun Must contain an array of 6 GPIO specifiers, referring to the GPIO pins 28*4882a593Smuzhiyun connected to the control pins V1-V6. 29*4882a593Smuzhiyun minItems: 6 30*4882a593Smuzhiyun maxItems: 6 31*4882a593Smuzhiyun 32*4882a593Smuzhiyunrequired: 33*4882a593Smuzhiyun - compatible 34*4882a593Smuzhiyun - ctrl-gpios 35*4882a593Smuzhiyun 36*4882a593SmuzhiyunadditionalProperties: false 37*4882a593Smuzhiyun 38*4882a593Smuzhiyunexamples: 39*4882a593Smuzhiyun - | 40*4882a593Smuzhiyun #include <dt-bindings/gpio/gpio.h> 41*4882a593Smuzhiyun gpio_hmc425a: hmc425a { 42*4882a593Smuzhiyun compatible = "adi,hmc425a"; 43*4882a593Smuzhiyun ctrl-gpios = <&gpio 40 GPIO_ACTIVE_HIGH>, 44*4882a593Smuzhiyun <&gpio 39 GPIO_ACTIVE_HIGH>, 45*4882a593Smuzhiyun <&gpio 38 GPIO_ACTIVE_HIGH>, 46*4882a593Smuzhiyun <&gpio 37 GPIO_ACTIVE_HIGH>, 47*4882a593Smuzhiyun <&gpio 36 GPIO_ACTIVE_HIGH>, 48*4882a593Smuzhiyun <&gpio 35 GPIO_ACTIVE_HIGH>; 49*4882a593Smuzhiyun vcc-supply = <&foo>; 50*4882a593Smuzhiyun }; 51*4882a593Smuzhiyun... 52