On Tue, 17 Nov 2020 09:52:54 +0200
Alexandru Ardelean wrote:
> This change adds a simple device-tree binding for thhe Analog Devices
> AD7887 ADC.
>
> Signed-off-by: Alexandru Ardelean
Binding looks good to me.
Jonathan
> ---
> .../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 ..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
> +
> +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 = <100>;
> +spi-cpol;
> +spi-cpha;
> +
> +avcc-supply = <_supply>;
> +vref-supply = <_vref>;
> +};
> +};
> +...
