mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-05 11:53:41 +00:00
8013738845
Instead of listing directly properties typical for SPI peripherals, reference the spi-peripheral-props.yaml schema. This allows using all properties typical for SPI-connected devices, even these which device bindings author did not tried yet. Remove the spi-* properties which now come via spi-peripheral-props.yaml schema, except for the cases when device schema adds some constraints like maximum frequency. While changing additionalProperties->unevaluatedProperties, put it in typical place, just before example DTS. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220816124321.67817-2-krzysztof.kozlowski@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
79 lines
2.0 KiB
YAML
79 lines
2.0 KiB
YAML
# 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
|
|
|
|
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
|
|
|
|
allOf:
|
|
- $ref: /schemas/spi/spi-peripheral-props.yaml#
|
|
|
|
unevaluatedProperties: 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>;
|
|
};
|
|
};
|
|
...
|