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Currently, the compatible 'elgin,jg10309-01' is documented inside trivial-devices.yaml, but it does not fit well there as it requires extra properties such as spi-max-frequency, spi-cpha, and spi-cpol. This causes the following dt-schema warnings: make CHECK_DTBS=y rockchip/rv1108-elgin-r1.dtb -j12 DTC [C] arch/arm/boot/dts/rockchip/rv1108-elgin-r1.dtb rv1108-elgin-r1.dtb:display@0: 'spi-cpha', 'spi-cpol' do not match any of the regexes: ... Fix this problem by introducing a specific binding for the Elgin JG10309-01 SPI-controlled display. Signed-off-by: Fabio Estevam <festevam@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20240930213238.977833-1-festevam@gmail.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
55 lines
1005 B
YAML
55 lines
1005 B
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/display/elgin,jg10309-01.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Elgin JG10309-01 SPI-controlled display
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maintainers:
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- Fabio Estevam <festevam@gmail.com>
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description: |
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The Elgin JG10309-01 SPI-controlled display is used on the RV1108-Elgin-r1
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board and is a custom display.
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allOf:
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- $ref: /schemas/spi/spi-peripheral-props.yaml#
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properties:
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compatible:
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const: elgin,jg10309-01
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reg:
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maxItems: 1
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spi-max-frequency:
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maximum: 24000000
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spi-cpha: true
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spi-cpol: true
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required:
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- compatible
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- reg
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- spi-cpha
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- spi-cpol
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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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display@0 {
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compatible = "elgin,jg10309-01";
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reg = <0>;
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spi-max-frequency = <24000000>;
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spi-cpha;
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spi-cpol;
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};
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};
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