On Tue, Nov 01, 2022 at 07:48:03AM +0100, Leonard Göhrs wrote: > Add binding documentation for the TI LMP92064 dual channel SPI ADC. > > Changes from v1 -> v2: > > - Rename the "shunt-resistor" devicetree property to > "shunt-resistor-micro-ohms". > - Add supply regulator support for the two voltage domains of the chip > (vdd and vdig). > - Add reference to spi-peripheral-props.yaml > > Signed-off-by: Leonard Göhrs <l.goehrs@xxxxxxxxxxxxxx> > --- > .../bindings/iio/adc/ti,lmp92064.yaml | 70 +++++++++++++++++++ > 1 file changed, 70 insertions(+) > create mode 100644 Documentation/devicetree/bindings/iio/adc/ti,lmp92064.yaml > > diff --git a/Documentation/devicetree/bindings/iio/adc/ti,lmp92064.yaml b/Documentation/devicetree/bindings/iio/adc/ti,lmp92064.yaml > new file mode 100644 > index 000000000000..357b15ebd897 > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/adc/ti,lmp92064.yaml > @@ -0,0 +1,70 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/iio/adc/ti,lmp92064.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Texas Instruments LMP92064 Precision Current and Voltage Sensor. > + > +maintainers: > + - Leonard Göhrs <l.goehrs@xxxxxxxxxxxxxx> > + > +description: | > + The LMP92064 is a two channel ADC intended for combined voltage and current > + measurements. > + > + The device contains two ADCs to allow simultaneous sampling of voltage and > + current and thus of instantaneous power consumption. > + > +properties: > + compatible: > + enum: > + - ti,lmp92064 > + > + reg: > + maxItems: 1 > + > + vdd-supply: > + description: Regulator that provides power to the main part of the chip > + > + vdig-supply: > + description: | > + Regulator that provides power to the digital I/O part of the chip > + > + shunt-resistor-micro-ohms: > + description: | > + Value of the shunt resistor (in µΩ) connected between INCP and INCN, > + across which current is measured. Used to provide correct scaling of the > + raw ADC measurement. > + > + reset-gpios: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + - shunt-resistor-micro-ohms > + > +allOf: > + - $ref: /schemas/spi/spi-peripheral-props.yaml# > + > +additionalProperties: false This should be unevaluatedProperties instead. > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + spi { > + #address-cells = <1>; > + #size-cells = <0>; > + > + adc@0 { > + compatible = "ti,lmp92064"; > + reg = <0>; > + vdd-supply = <&vdd>; > + vdig-supply = <&vdd>; > + spi-max-frequency = <20000000>; > + shunt-resistor-micro-ohms = <15000>; > + reset-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>; > + }; > + }; > +... > -- > 2.30.2 > >
