Unverified Commit 549cf05a authored by Iker Pedrosa's avatar Iker Pedrosa Committed by Javier Martinez Canillas
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dt-bindings: display: sitronix,st7920: Add DT schema 



Add binding for Sitronix ST7920 display.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarIker Pedrosa <ikerpedrosam@gmail.com>
Signed-off-by: default avatarJavier Martinez Canillas <javierm@redhat.com>
Link: https://patch.msgid.link/20251215-st7920-v7-1-36771009ec01@gmail.com
parent e7a943f0

Documentation/devicetree/bindings/display/sitronix,st7920.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/sitronix,st7920.yaml#

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



title: Sitronix ST7920 LCD Display Controllers



maintainers:

  - Iker Pedrosa <ikerpedrosam@gmail.com>



description:

  The Sitronix ST7920 is a controller for monochrome dot-matrix graphical LCDs,

  most commonly used for 128x64 pixel displays.



properties:

  compatible:

    const: sitronix,st7920



  reg:

    maxItems: 1



  vdd-supply:

    description: Regulator that provides 5V Vdd power supply



  reset-gpios:

    maxItems: 1



  spi-max-frequency:

    maximum: 600000



required:

  - compatible

  - reg

  - spi-max-frequency



allOf:

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



unevaluatedProperties: false



examples:

  - |

    #include <dt-bindings/gpio/gpio.h>



    spi {

        #address-cells = <1>;

        #size-cells = <0>;



        display@0 {

            compatible = "sitronix,st7920";

            reg = <0>;

            vdd-supply = <&reg_5v>;

            reset-gpios = <&gpio 25 GPIO_ACTIVE_LOW>;

            spi-max-frequency = <600000>;

            spi-cs-high;

        };

    };