xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/iio/adc/ti,lmp92064.yaml

# 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@pengutronix.de>

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#

unevaluatedProperties: false

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>;
        };
    };
...