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6fdc6e23a7
This doesn't yet do anything in the tools, but make it explicit so we can check either 'unevaluatedProperties' or 'additionalProperties' is present in schemas. 'unevaluatedProperties' is appropriate when including another schema (via '$ref') and all possible properties and/or child nodes are not explicitly listed in the schema with the '$ref'. This is in preparation to add a meta-schema to check for missing 'unevaluatedProperties' or 'additionalProperties'. This has been a constant source of review issues. Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Wolfram Sang <wsa@kernel.org> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-By: Vinod Koul <vkoul@kernel.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/20201005183830.486085-2-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
74 lines
1.5 KiB
YAML
74 lines
1.5 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/spi/spi-gpio.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: SPI-GPIO devicetree bindings
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maintainers:
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- Rob Herring <robh@kernel.org>
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description:
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This represents a group of 3-n GPIO lines used for bit-banged SPI on
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dedicated GPIO lines.
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allOf:
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- $ref: "/schemas/spi/spi-controller.yaml#"
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properties:
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compatible:
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const: spi-gpio
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sck-gpios:
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description: GPIO spec for the SCK line to use
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maxItems: 1
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miso-gpios:
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description: GPIO spec for the MISO line to use
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maxItems: 1
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mosi-gpios:
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description: GPIO spec for the MOSI line to use
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maxItems: 1
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cs-gpios:
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description: GPIOs to use for chipselect lines.
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Not needed if num-chipselects = <0>.
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minItems: 1
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maxItems: 1024
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num-chipselects:
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description: Number of chipselect lines. Should be <0> if a single device
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with no chip select is connected.
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$ref: "/schemas/types.yaml#/definitions/uint32"
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# Deprecated properties
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gpio-sck: false
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gpio-miso: false
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gpio-mosi: false
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required:
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- compatible
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- num-chipselects
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- sck-gpios
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unevaluatedProperties: false
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examples:
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- |
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spi {
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compatible = "spi-gpio";
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#address-cells = <0x1>;
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#size-cells = <0x0>;
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sck-gpios = <&gpio 95 0>;
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miso-gpios = <&gpio 98 0>;
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mosi-gpios = <&gpio 97 0>;
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cs-gpios = <&gpio 125 0>;
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num-chipselects = <1>;
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/* clients */
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};
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...
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