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
7 title: Texas Instruments LMP92064 Precision Current and Voltage Sensor.
8
9 maintainers:
10 - Leonard Göhrs <l.goehrs@pengutronix.de>
11
12 description: |
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
19 properties:
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
43 required:
44 - compatible
45 - reg
46 - shunt-resistor-micro-ohms
47
48 allOf:
49 - $ref: /schemas/spi/spi-peripheral-props.yaml#
50
51 unevaluatedProperties: false
52
53 examples:
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 ...
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