1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/adi,ad7280a.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Analog Devices AD7280a Lithium Ion Battery Monitoring System
8
9 maintainers:
10 - Michael Hennerich <michael.hennerich@analog.com>
11 - Jonathan Cameron <jic23@kernel.org>
12
13 description: |
14 Bindings for the Analog Devices AD7280a Battery Monitoring System.
15 Used in devices such as hybrid electric cars, battery backup and power tools.
16 Multiple chips can be daisy chained and accessed via a single SPI interface.
17 Data sheet found here:
18 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7280A.pdf
19
20 properties:
21 compatible:
22 const: adi,ad7280a
23
24 reg:
25 maxItems: 1
26
27 interrupts:
28 description: IRQ line for the ADC
29 maxItems: 1
30
31 adi,voltage-alert-last-chan:
32 $ref: /schemas/types.yaml#/definitions/uint32
33 description:
34 Allows limiting of scope of which channels are considered for voltage
35 alerts, typically because not all are wired to anything. Only applies to
36 last device in the daisy chain.
37 default: 5
38 enum: [3, 4, 5]
39
40 adi,acquisition-time-ns:
41 description:
42 Additional time may be needed to charge the sampling capacitors depending
43 on external writing.
44 default: 400
45 enum: [400, 800, 1200, 1600]
46
47 adi,thermistor-termination:
48 type: boolean
49 description:
50 Enable the thermistor termination function.
51
52 required:
53 - compatible
54 - reg
55
56 allOf:
57 - $ref: /schemas/spi/spi-peripheral-props.yaml#
58
59 unevaluatedProperties: false
60
61 examples:
62 - |
63 spi {
64 #address-cells = <1>;
65 #size-cells = <0>;
66
67 adc@0 {
68 compatible = "adi,ad7280a";
69 reg = <0>;
70 spi-max-frequency = <700000>;
71 interrupt-parent = <&gpio>;
72 interrupts = <25 2>;
73 adi,thermistor-termination;
74 adi,acquisition-time-ns = <800>;
75 adi,voltage-alert-last-chan = <5>;
76 };
77 };
78 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.