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