Commit 26bc3371 authored by AngeloGioacchino Del Regno's avatar AngeloGioacchino Del Regno Committed by Sam Ravnborg
Browse files

dt-bindings: display/bridge: ptn3460: Convert to YAML binding 



Convert the NXP PTN3460 eDP to LVDS bridge documentation to YAML.

Signed-off-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211007075822.62411-1-angelogioacchino.delregno@collabora.com
parent 6eab8224

Documentation/devicetree/bindings/display/bridge/nxp,ptn3460.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/nxp,ptn3460.yaml#

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



title: NXP PTN3460 eDP to LVDS bridge



maintainers:

  - Sean Paul <seanpaul@chromium.org>



properties:

  compatible:

    const: nxp,ptn3460



  reg:

    description: I2C address of the bridge

    maxItems: 1



  edid-emulation:

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

    description:

      The EDID emulation entry to use

      Value  Resolution  Description

        0     1024x768   NXP Generic

        1     1920x1080  NXP Generic

        2     1920x1080  NXP Generic

        3     1600x900   Samsung LTM200KT

        4     1920x1080  Samsung LTM230HT

        5     1366x768   NXP Generic

        6     1600x900   ChiMei M215HGE

    enum: [0, 1, 2, 3, 4, 5, 6]



  powerdown-gpios:

    description: GPIO connected to the PD_N signal.

    maxItems: 1



  reset-gpios:

    description: GPIO connected to the RST_N signal.

    maxItems: 1



  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 eDP input



    required:

      - port@0

      - port@1



required:

  - compatible

  - reg

  - edid-emulation

  - powerdown-gpios

  - reset-gpios

  - ports



additionalProperties: false



examples:

  - |

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



    i2c1 {

      #address-cells = <1>;

      #size-cells = <0>;



      bridge@20 {

        compatible = "nxp,ptn3460";

        reg = <0x20>;

        edid-emulation = <5>;

        powerdown-gpios = <&gpy2 5 GPIO_ACTIVE_HIGH>;

        reset-gpios = <&gpx1 5 GPIO_ACTIVE_LOW>;



        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/ptn3460.txt

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ptn3460 bridge bindings



Required properties:

	- compatible: "nxp,ptn3460"

	- reg: i2c address of the bridge

	- powerdown-gpio: OF device-tree gpio specification  for PD_N pin.

	- reset-gpio: OF device-tree gpio specification for RST_N pin.

	- edid-emulation: The EDID emulation entry to use

		+-------+------------+------------------+

		| Value | Resolution | Description      |

		|   0   |  1024x768  | NXP Generic      |

		|   1   |  1920x1080 | NXP Generic      |

		|   2   |  1920x1080 | NXP Generic      |

		|   3   |  1600x900  | Samsung LTM200KT |

		|   4   |  1920x1080 | Samsung LTM230HT |

		|   5   |  1366x768  | NXP Generic      |

		|   6   |  1600x900  | ChiMei M215HGE   |

		+-------+------------+------------------+



	- 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@20 {

		compatible = "nxp,ptn3460";

		reg = <0x20>;

		powerdown-gpio = <&gpy2 5 1 0 0>;

		reset-gpio = <&gpx1 5 1 0 0>;

		edid-emulation = <5>;

		ports {

			port@0 {

				bridge_out: endpoint {

					remote-endpoint = <&panel_in>;

				};

			};

		};

	};