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In cases where we don't reference another schema, 'additionalProperties' can be used instead. This is preferred for now as 'unevaluatedProperties' support isn't implemented yet. In a few cases, this means adding some missing property definitions of which most are for SPI bus properties. 'unevaluatedProperties' is not going to work for the SPI bus properties anyways as they are evaluated from the parent node, not the SPI child node. Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20201005183830.486085-3-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
68 lines
1.5 KiB
YAML
68 lines
1.5 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright 2020 Alexandru Lazar
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/adc/maxim,max1241.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Maxim MAX1241 12-bit, single-channel analog to digital converter
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maintainers:
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- Alexandru Lazar <alazar@startmail.com>
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description: |
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Bindings for the max1241 12-bit, single-channel ADC device. Datasheet
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can be found at:
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https://datasheets.maximintegrated.com/en/ds/MAX1240-MAX1241.pdf
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properties:
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compatible:
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enum:
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- maxim,max1241
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reg:
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maxItems: 1
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vdd-supply:
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description:
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Device tree identifier of the regulator that powers the ADC.
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vref-supply:
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description:
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Device tree identifier of the regulator that provides the external
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reference voltage.
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shutdown-gpios:
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description:
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GPIO spec for the GPIO pin connected to the ADC's /SHDN pin. If
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specified, the /SHDN pin will be asserted between conversions,
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thus enabling power-down mode.
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maxItems: 1
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spi-max-frequency: true
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required:
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- compatible
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- reg
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- vdd-supply
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- vref-supply
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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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 = "maxim,max1241";
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reg = <0>;
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vdd-supply = <&adc_vdd>;
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vref-supply = <&adc_vref>;
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spi-max-frequency = <1000000>;
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shutdown-gpios = <&gpio 26 1>;
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};
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};
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