xref: /linux/Documentation/devicetree/bindings/iio/adc/ti,lmp92064.yaml (revision 9a87ffc99ec8eb8d35eed7c4f816d75f5cc9662e) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/iio/adc/ti,lmp92064.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Texas Instruments LMP92064 Precision Current and Voltage Sensor.
8
9maintainers:
10  - Leonard Göhrs <l.goehrs@pengutronix.de>
11
12description: |
13  The LMP92064 is a two channel ADC intended for combined voltage and current
14  measurements.
15
16  The device contains two ADCs to allow simultaneous sampling of voltage and
17  current and thus of instantaneous power consumption.
18
19properties:
20  compatible:
21    enum:
22      - ti,lmp92064
23
24  reg:
25    maxItems: 1
26
27  vdd-supply:
28    description: Regulator that provides power to the main part of the chip
29
30  vdig-supply:
31    description: |
32      Regulator that provides power to the digital I/O part of the chip
33
34  shunt-resistor-micro-ohms:
35    description: |
36      Value of the shunt resistor (in µΩ) connected between INCP and INCN,
37      across which current is measured. Used to provide correct scaling of the
38      raw ADC measurement.
39
40  reset-gpios:
41    maxItems: 1
42
43required:
44  - compatible
45  - reg
46  - shunt-resistor-micro-ohms
47
48allOf:
49  - $ref: /schemas/spi/spi-peripheral-props.yaml#
50
51unevaluatedProperties: false
52
53examples:
54  - |
55    #include <dt-bindings/gpio/gpio.h>
56    spi {
57        #address-cells = <1>;
58        #size-cells = <0>;
59
60        adc@0 {
61            compatible = "ti,lmp92064";
62            reg = <0>;
63            vdd-supply = <&vdd>;
64            vdig-supply = <&vdd>;
65            spi-max-frequency = <20000000>;
66            shunt-resistor-micro-ohms = <15000>;
67            reset-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>;
68        };
69    };
70...
71