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3d21a46093
json-schema versions draft7 and earlier have a weird behavior in that any keywords combined with a '$ref' are ignored (silently). The correct form was to put a '$ref' under an 'allOf'. This behavior is now changed in the 2019-09 json-schema spec and '$ref' can be mixed with other keywords. The json-schema library doesn't yet support this, but the tooling now does a fixup for this and either way works. This has been a constant source of review comments, so let's change this treewide so everyone copies the simpler syntax. Scripted with ruamel.yaml with some manual fixups. Some minor whitespace changes from the script. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Maxime Ripard <mripard@kernel.org> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-By: Vinod Koul <vkoul@kernel.org> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Wolfram Sang <wsa@the-dreams.de> # for I2C Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #for-iio Reviewed-by: Stephen Boyd <sboyd@kernel.org> # clock Signed-off-by: Rob Herring <robh@kernel.org>
73 lines
1.7 KiB
YAML
73 lines
1.7 KiB
YAML
# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
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# Copyright 2019 Marcus Folkesson <marcus.folkesson@gmail.com>
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/iio/adc/microchip,mcp3911.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: Microchip MCP3911 Dual channel analog front end (ADC)
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maintainers:
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- Marcus Folkesson <marcus.folkesson@gmail.com>
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- Kent Gustavsson <nedo80@gmail.com>
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description: |
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Bindings for the Microchip MCP3911 Dual channel ADC device. Datasheet can be
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found here: https://ww1.microchip.com/downloads/en/DeviceDoc/20002286C.pdf
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properties:
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compatible:
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enum:
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- microchip,mcp3911
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reg:
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maxItems: 1
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spi-max-frequency:
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maximum: 20000000
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clocks:
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description: |
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Phandle and clock identifier for external sampling clock.
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If not specified, the internal crystal oscillator will be used.
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maxItems: 1
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interrupts:
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description: IRQ line of the ADC
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maxItems: 1
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microchip,device-addr:
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description: Device address when multiple MCP3911 chips are present on the same SPI bus.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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default: 0
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vref-supply:
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description: |
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Phandle to the external reference voltage supply.
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If not specified, the internal voltage reference (1.2V) will be used.
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required:
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- compatible
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- reg
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additionalProperties: 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 = "microchip,mcp3911";
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reg = <0>;
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interrupt-parent = <&gpio5>;
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interrupts = <15 2>;
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spi-max-frequency = <20000000>;
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microchip,device-addr = <0>;
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vref-supply = <&vref_reg>;
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clocks = <&xtal>;
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};
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};
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