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1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/iio/adc/adi,ad7280a.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Analog Devices AD7280a Lithium Ion Battery Monitoring System8 9maintainers:10 - Michael Hennerich <michael.hennerich@analog.com>11 - Jonathan Cameron <jic23@kernel.org>12 13description: |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.pdf19 20properties:21 compatible:22 const: adi,ad7280a23 24 reg:25 maxItems: 126 27 interrupts:28 description: IRQ line for the ADC29 maxItems: 130 31 adi,voltage-alert-last-chan:32 $ref: /schemas/types.yaml#/definitions/uint3233 description:34 Allows limiting of scope of which channels are considered for voltage35 alerts, typically because not all are wired to anything. Only applies to36 last device in the daisy chain.37 default: 538 enum: [3, 4, 5]39 40 adi,acquisition-time-ns:41 description:42 Additional time may be needed to charge the sampling capacitors depending43 on external writing.44 default: 40045 enum: [400, 800, 1200, 1600]46 47 adi,thermistor-termination:48 type: boolean49 description:50 Enable the thermistor termination function.51 52required:53 - compatible54 - reg55 56allOf:57 - $ref: /schemas/spi/spi-peripheral-props.yaml#58 59unevaluatedProperties: false60 61examples: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...79