From: Michael Hennerich <michael.hennerich@xxxxxxxxxx> Document support for Analog Devices MC425A Step Attenuator. Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx> Signed-off-by: Beniamin Bia <beniamin.bia@xxxxxxxxxx> --- .../bindings/iio/amplifiers/adi,hmc425a.yaml | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml new file mode 100644 index 000000000000..6f4a292395e4 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: GPL-2.0 +%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@xxxxxxxxxx> + +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: + description: + digital voltage regulator (see regulator/regulator.txt) + maxItems: 1 + +ctrl-gpios: + description: + Must contain an array of 6 GPIO specifiers, referring to the GPIO pins + connected to the control pins V1-V6. + maxItems: 6 + +required: +- compatible +- ctrl-gpios + +examples: +- | + #include <dt-bindings/gpio/gpio.h> + + &gpio { + #address-cells = <1>; + #size-cells = <0>; + 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>; + }; + } -- 2.17.1
