Commit 4e840bea authored by Sam Ravnborg's avatar Sam Ravnborg
Browse files

dt-bindings: display: convert panel-dpi to DT schema 



With panel-timing converted, now convert the single
remaining .txt user in panel/ of panel-timing to DT schema.

v2:
  - Drop Thierry as maintainer, as this is not a general panel binding
    and I have no acks.
  - Drop requirement for a panel- specific binding - "panel-dpi" is enough
  - Updated example

v3:
  - added yaml document terminator "..."
  - always require a specific binding - panel-dpi (based on feedback from Rob)
  - use "power-supply" for the supply property, and made it mandatory
    "power-supply" is the standard property for panels

Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarMaxime Ripard <mripard@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200216181513.28109-4-sam@ravnborg.org
parent 4dd23a47

Documentation/devicetree/bindings/display/panel/panel-dpi.txt

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Generic MIPI DPI Panel

======================



Required properties:

- compatible: "panel-dpi"



Optional properties:

- label: a symbolic name for the panel

- enable-gpios: panel enable gpio

- reset-gpios: GPIO to control the RESET pin

- vcc-supply: phandle of regulator that will be used to enable power to the display

- backlight: phandle of the backlight device



Required nodes:

- "panel-timing" containing video timings

  (Documentation/devicetree/bindings/display/panel/display-timing.txt)

- Video port for DPI input



Example

-------



lcd0: display@0 {

        compatible = "samsung,lte430wq-f0c", "panel-dpi";

        label = "lcd";



        backlight = <&backlight>;



        port {

            lcd_in: endpoint {

                    remote-endpoint = <&dpi_out>;

            };

        };



        panel-timing {

                clock-frequency = <9200000>;

                hactive = <480>;

                vactive = <272>;

                hfront-porch = <8>;

                hback-porch = <4>;

                hsync-len = <41>;

                vback-porch = <2>;

                vfront-porch = <4>;

                vsync-len = <10>;



                hsync-active = <0>;

                vsync-active = <0>;

                de-active = <1>;

                pixelclk-active = <1>;

        };

};

Documentation/devicetree/bindings/display/panel/panel-dpi.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/panel/panel-dpi.yaml#

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



title: Generic MIPI DPI Panel



maintainers:

  - Sam Ravnborg <sam@ravnborg.org>



allOf:

  - $ref: panel-common.yaml#



properties:

  compatible:

    description:

      Shall contain a panel specific compatible and "panel-dpi"

      in that order.

    items:

      - {}

      - const: panel-dpi



  backlight: true

  enable-gpios: true

  height-mm: true

  label: true

  panel-timing: true

  port: true

  power-supply: true

  reset-gpios: true

  width-mm: true



required:

  - panel-timing

  - power-supply



additionalProperties: false



examples:

  - |

    panel@0 {

        compatible = "osddisplays,osd057T0559-34ts", "panel-dpi";

        label = "osddisplay";

        power-supply = <&vcc_supply>;



        backlight = <&backlight>;



        port {

            lcd_in: endpoint {

                remote-endpoint = <&dpi_out>;

            };

        };

        panel-timing {

            clock-frequency = <9200000>;

            hactive = <800>;

            vactive = <480>;

            hfront-porch = <8>;

            hback-porch = <4>;

            hsync-len = <41>;

            vback-porch = <2>;

            vfront-porch = <4>;

            vsync-len = <10>;



            hsync-active = <0>;

            vsync-active = <0>;

            de-active = <1>;

            pixelclk-active = <1>;

        };

    };



...

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