On Thu, Nov 19, 2020 at 12:07:48PM +0200, Alexandru Ardelean wrote: > 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 Dual license new bindings. checkpatch.pl will tell you this. > +%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 >
