This change adds a simple device-tree binding for thhe Analog Devices AD7887 ADC. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx> --- .../bindings/iio/adc/adi,ad7887.yaml | 70 +++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7887.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7887.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7887.yaml new file mode 100644 index 000000000000..9b30f4569b4e --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7887.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/adc/adi,ad7887.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD7887 low power, 12-bit ADC + +maintainers: + - Michael Hennerich <michael.hennerich@xxxxxxxxxx> + +description: | + Analog Devices AD7887 low power, 12-bit analog-to-digital converter (ADC) + that operates from a single 2.7 V to 5.25 V power supply. + +properties: + compatible: + enum: + - adi,ad7887 + + reg: + maxItems: 1 + + spi-cpha: true + + spi-cpol: true + + avcc-supply: true + + spi-max-frequency: true + + vref-supply: + description: + ADC reference voltage supply + + adi,dual-channel-mode: + description: + Configures dual-channel mode for the ADC. In dual-channel operation, + the AIN1/VREF pin assumes its AIN1 function, providing a second analog + input channel. In this case, he reference voltage for the part is provided + via the VDD pin. As a result, the input voltage range on both the AIN0 and + AIN1 inputs is 0 to VDD. + type: boolean + +additionalProperties: false + +required: + - compatible + - reg + - spi-cpha + - spi-cpol + +examples: + - | + spi0 { + #address-cells = <1>; + #size-cells = <0>; + + adc@0 { + compatible = "adi,ad7887"; + reg = <0>; + spi-max-frequency = <1000000>; + spi-cpol; + spi-cpha; + + avcc-supply = <&adc_supply>; + vref-supply = <&adc_vref>; + }; + }; +... -- 2.17.1
