Commit 6c424e68 authored by Sam Ravnborg's avatar Sam Ravnborg
Browse files

dt-bindings: display: convert sitronix,st7789v to DT Schema 



v2:
    - dropped use of spi-slave.yaml (Maxime)
    - added unevaluatedProperties (Maxime)

Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200408195109.32692-28-sam@ravnborg.org
parent c907477e

Documentation/devicetree/bindings/display/panel/sitronix,st7789v.txt

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Sitronix ST7789V RGB panel with SPI control bus



Required properties:

  - compatible: "sitronix,st7789v"

  - reg: Chip select of the panel on the SPI bus

  - reset-gpios: a GPIO phandle for the reset pin

  - power-supply: phandle of the regulator that provides the supply voltage



Optional properties:

  - backlight: phandle to the backlight used



The generic bindings for the SPI slaves documented in [1] also applies



The device node can contain one 'port' child node with one child

'endpoint' node, according to the bindings defined in [2]. This

node should describe panel's video bus.



[1]: Documentation/devicetree/bindings/spi/spi-bus.txt

[2]: Documentation/devicetree/bindings/graph.txt



Example:



panel@0 {

	compatible = "sitronix,st7789v";

	reg = <0>;

	reset-gpios = <&pio 6 11 GPIO_ACTIVE_LOW>;

	backlight = <&pwm_bl>;

	spi-max-frequency = <100000>;

	spi-cpol;

	spi-cpha;



	port {

		panel_input: endpoint {

			remote-endpoint = <&tcon0_out_panel>;

		};

	};

};

Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml

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# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/display/panel/sitronix,st7789v.yaml#

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



title: Sitronix ST7789V RGB panel with SPI control bus



description: |

  The panel must obey the rules for a SPI slave device as specified in

  spi/spi-controller.yaml



maintainers:

  - Maxime Ripard <mripard@kernel.org>



allOf:

  - $ref: panel-common.yaml#



properties:

  compatible:

    const: sitronix,st7789v



  reg: true

  reset-gpios: true

  power-supply: true

  backlight: true

  port: true



required:

  - compatible

  - reg

  - reset-gpios

  - power-supply



unevaluatedProperties: false



examples:

  - |

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



    spi {

        #address-cells = <1>;

        #size-cells = <0>;



        panel@0 {

            compatible = "sitronix,st7789v";

            reg = <0>;

            reset-gpios = <&pio 6 11 GPIO_ACTIVE_LOW>;

            backlight = <&pwm_bl>;

            power-supply = <&power>;

            spi-max-frequency = <100000>;

            spi-cpol;

            spi-cpha;



            port {

                panel_input: endpoint {

                    remote-endpoint = <&tcon0_out_panel>;

                };

            };

        };

    };



...