| # 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> |
| |
| 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>; |
| }; |
| ... |
