Commit 844f5ed5 authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Rob Herring
Browse files

dt-bindings: display: bridge: parade,ps8622: convert to dtschema 



Convert the Parade PS8622/PS8625 DisplayPort to LVDS Converter bindings
to DT schema.  Changes during conversion: add missing vdd12-supply, used
by Linux driver.

Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230221170955.62448-1-krzysztof.kozlowski@linaro.org


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent 36b3ff49

Documentation/devicetree/bindings/display/bridge/parade,ps8622.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/bridge/parade,ps8622.yaml#

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



title: Parade PS8622/PS8625 DisplayPort to LVDS Converter



maintainers:

  - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>



properties:

  compatible:

    enum:

      - parade,ps8622

      - parade,ps8625



  reg:

    maxItems: 1



  lane-count:

    $ref: /schemas/types.yaml#/definitions/uint32

    enum: [1, 2]

    description: Number of DP lanes to use.



  use-external-pwm:

    type: boolean

    description: Backlight will be controlled by an external PWM.



  reset-gpios:

    maxItems: 1

    description: GPIO connected to RST_ pin.



  sleep-gpios:

    maxItems: 1

    description: GPIO connected to PD_ pin.



  vdd12-supply: true



  ports:

    $ref: /schemas/graph.yaml#/properties/ports



    properties:

      port@0:

        $ref: /schemas/graph.yaml#/properties/port

        description: Video port for LVDS output.



      port@1:

        $ref: /schemas/graph.yaml#/properties/port

        description: Video port for DisplayPort input.



    required:

      - port@0

      - port@1



required:

  - compatible

  - reg

  - reset-gpios

  - sleep-gpios

  - ports



allOf:

  - if:

      properties:

        compatible:

          const: parade,ps8622

    then:

      properties:

        lane-count:

          const: 1

    else:

      properties:

        lane-count:

          const: 2



additionalProperties: false



examples:

  - |

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

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;



        lvds-bridge@48 {

            compatible = "parade,ps8625";

            reg = <0x48>;

            sleep-gpios = <&gpx3 5 GPIO_ACTIVE_HIGH>;

            reset-gpios = <&gpy7 7 GPIO_ACTIVE_HIGH>;

            lane-count = <2>;

            use-external-pwm;



            ports {

                #address-cells = <1>;

                #size-cells = <0>;



                port@0 {

                    reg = <0>;



                    bridge_out: endpoint {

                        remote-endpoint = <&panel_in>;

                    };

                };



                port@1 {

                    reg = <1>;



                    bridge_in: endpoint {

                        remote-endpoint = <&dp_out>;

                    };

                };

            };

        };

    };

Documentation/devicetree/bindings/display/bridge/ps8622.txt

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ps8622-bridge bindings



Required properties:

	- compatible: "parade,ps8622" or "parade,ps8625"

	- reg: first i2c address of the bridge

	- sleep-gpios: OF device-tree gpio specification for PD_ pin.

	- reset-gpios: OF device-tree gpio specification for RST_ pin.



Optional properties:

	- lane-count: number of DP lanes to use

	- use-external-pwm: backlight will be controlled by an external PWM

	- video interfaces: Device node can contain video interface port

			    nodes for panel according to [1].



[1]: Documentation/devicetree/bindings/media/video-interfaces.txt



Example:

	lvds-bridge@48 {

		compatible = "parade,ps8622";

		reg = <0x48>;

		sleep-gpios = <&gpc3 6 1 0 0>;

		reset-gpios = <&gpc3 1 1 0 0>;

		lane-count = <1>;

		ports {

			port@0 {

				bridge_out: endpoint {

					remote-endpoint = <&panel_in>;

				};

			};

		};

	};