1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/microchip,pac1921.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Microchip PAC1921 High-Side Power/Current Monitor with Anaog Output
8
9 maintainers:
10 - Matteo Martelli <matteomartelli3@gmail.com>
11
12 description: |
13 The PAC1921 is a power/current monitoring device with an analog output
14 and I2C/SMBus interface.
15
16 Datasheet can be found here:
17 https://ww1.microchip.com/downloads/en/DeviceDoc/PAC1921-Data-Sheet-DS20005293E.pdf
18
19 properties:
20 compatible:
21 const: microchip,pac1921
22
23 reg:
24 maxItems: 1
25
26 vdd-supply: true
27
28 "#io-channel-cells":
29 const: 1
30
31 shunt-resistor-micro-ohms:
32 description:
33 Value in micro Ohms of the shunt resistor connected between
34 the SENSE+ and SENSE- inputs, across which the current is measured.
35 Value is needed to compute the scaling of the measured current.
36
37 label:
38 description: Unique name to identify which device this is.
39
40 read-integrate-gpios:
41 description:
42 READ/INT input pin to control the current state of the device, either in
43 the INTEGRATE state when driven high, or in the READ state when driven low.
44 When not connected the pin is floating and it can be overridden by the
45 INT_EN register bit after asserting the READ/INT_OVR register bit.
46 maxItems: 1
47
48 required:
49 - compatible
50 - reg
51 - vdd-supply
52 - shunt-resistor-micro-ohms
53
54 additionalProperties: false
55
56 examples:
57 - |
58 i2c {
59 #address-cells = <1>;
60 #size-cells = <0>;
61
62 adc@4c {
63 compatible = "microchip,pac1921";
64 reg = <0x4c>;
65 vdd-supply = <&vdd>;
66 #io-channel-cells = <1>;
67 label = "vbat";
68 shunt-resistor-micro-ohms = <10000>;
69 };
70 };
71 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.