Commit 575af8ec authored by Fabrizio Castro's avatar Fabrizio Castro Committed by Neil Armstrong
Browse files

dt-bindings: display: bridge: Repurpose lvds-encoder 



In an effort to repurpose lvds-encoder.c to also serve the
function of LVDS decoders, we ended up defining a new "generic"
compatible string ("lvds-decoder"), therefore adapt the dt schema
to allow for the new compatible string.

Signed-off-by: default avatarFabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
[narmstrong: fixed port descriptions as acked with lpinchart]
Signed-off-by: default avatarNeil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1573660292-10629-9-git-send-email-fabrizio.castro@bp.renesas.com
parent 319d8e98

Documentation/devicetree/bindings/display/bridge/lvds-transmitter.yaml→Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml

+42 −12
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/display/bridge/lvds-transmitter.yaml#

$id: http://devicetree.org/schemas/display/bridge/lvds-codec.yaml#

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



title: Parallel to LVDS Encoder

title: Transparent LVDS encoders and decoders



maintainers:

  - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>



description: |

  This binding supports the parallel to LVDS encoders that don't require any

  configuration.

  This binding supports transparent LVDS encoders and decoders that don't

  require any configuration.



  LVDS is a physical layer specification defined in ANSI/TIA/EIA-644-A. Multiple

  incompatible data link layers have been used over time to transmit image data
@@ -33,12 +33,14 @@ properties: 
    description: |

      Must list the device specific compatible string first, followed by the

      generic compatible string.

    items:

    oneOf:

      - items:

        - enum:

          - ti,ds90c185       # For the TI DS90C185 FPD-Link Serializer

          - ti,ds90c187       # For the TI DS90C187 FPD-Link Serializer

          - ti,sn75lvds83     # For the TI SN75LVDS83 FlatLink transmitter

        - const: lvds-encoder # Generic LVDS encoder compatible fallback

      - const: lvds-decoder   # Generic LVDS decoders compatible fallback



  ports:

    type: object
@@ -49,12 +51,14 @@ properties: 
      port@0:

        type: object

        description: |

          Port 0 is for parallel input

          For LVDS encoders, port 0 is the parallel input

          For LVDS decoders, port 0 is the LVDS input



      port@1:

        type: object

        description: |

          Port 1 is for LVDS output

          For LVDS encoders, port 1 is the LVDS output

          For LVDS decoders, port 1 is the parallel output



    required:

      - port@0
@@ -96,4 +100,30 @@ examples: 
      };

    };



  - |

    lvds-decoder {

      compatible = "lvds-decoder";



      ports {

        #address-cells = <1>;

        #size-cells = <0>;



        port@0 {

          reg = <0>;



          lvds_dec_in: endpoint {

            remote-endpoint = <&display_out_lvds>;

          };

        };



        port@1 {

          reg = <1>;



          lvds_dec_out: endpoint {

            remote-endpoint = <&rgb_panel_in>;

          };

        };

      };

    };



...

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