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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/adc/adi,ad7280a.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices AD7280a Lithium Ion Battery Monitoring System
maintainers:
- Michael Hennerich <michael.hennerich@analog.com>
- Jonathan Cameron <jic23@kernel.org>
description: |
Bindings for the Analog Devices AD7280a Battery Monitoring System.
Used in devices such as hybrid electric cars, battery backup and power tools.
Multiple chips can be daisy chained and accessed via a single SPI interface.
Data sheet found here:
https://www.analog.com/media/en/technical-documentation/data-sheets/AD7280A.pdf
properties:
compatible:
const: adi,ad7280a
reg:
maxItems: 1
interrupts:
description: IRQ line for the ADC
maxItems: 1
spi-max-frequency: true
adi,voltage-alert-last-chan:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Allows limiting of scope of which channels are considered for voltage
alerts, typically because not all are wired to anything. Only applies to
last device in the daisy chain.
default: 5
enum: [3, 4, 5]
adi,acquisition-time-ns:
description:
Additional time may be needed to charge the sampling capacitors depending
on external writing.
default: 400
enum: [400, 800, 1200, 1600]
adi,thermistor-termination:
type: boolean
description:
Enable the thermistor termination function.
required:
- compatible
- reg
additionalProperties: false
examples:
- |
spi {
#address-cells = <1>;
#size-cells = <0>;
adc@0 {
compatible = "adi,ad7280a";
reg = <0>;
spi-max-frequency = <700000>;
interrupt-parent = <&gpio>;
interrupts = <25 2>;
adi,thermistor-termination;
adi,acquisition-time-ns = <800>;
adi,voltage-alert-last-chan = <5>;
};
};
...
|
