Commit d0a0c91d authored by Fabio Estevam's avatar Fabio Estevam Committed by Rob Herring (Arm)
Browse files

dt-bindings: display: elgin,jg10309-01: Add own binding 



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: default avatarFabio Estevam <festevam@gmail.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240930213238.977833-1-festevam@gmail.com


Signed-off-by: default avatarRob Herring (Arm) <robh@kernel.org>
parent 9852d85e

Documentation/devicetree/bindings/display/elgin,jg10309-01.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/display/elgin,jg10309-01.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Elgin JG10309-01 SPI-controlled display



maintainers:

  - Fabio Estevam <festevam@gmail.com>



description: |

  The Elgin JG10309-01 SPI-controlled display is used on the RV1108-Elgin-r1

  board and is a custom display.



allOf:

  - $ref: /schemas/spi/spi-peripheral-props.yaml#



properties:

  compatible:

    const: elgin,jg10309-01



  reg:

    maxItems: 1



  spi-max-frequency:

    maximum: 24000000



  spi-cpha: true



  spi-cpol: true



required:

  - compatible

  - reg

  - spi-cpha

  - spi-cpol



additionalProperties: false



examples:

  - |

    spi {

        #address-cells = <1>;

        #size-cells = <0>;



        display@0 {

            compatible = "elgin,jg10309-01";

            reg = <0>;

            spi-max-frequency = <24000000>;

            spi-cpha;

            spi-cpol;

        };

    };

Documentation/devicetree/bindings/trivial-devices.yaml

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@@ -101,8 +101,6 @@ properties: 
          - domintech,dmard09

            # DMARD10: 3-axis Accelerometer

          - domintech,dmard10

            # Elgin SPI-controlled LCD

          - elgin,jg10309-01

            # MMA7660FC: 3-Axis Orientation/Motion Detection Sensor

          - fsl,mma7660

            # MMA8450Q: Xtrinsic Low-power, 3-axis Xtrinsic Accelerometer