Unverified Commit 66651867 authored by Marek Vasut's avatar Marek Vasut Committed by Robert Foss
Browse files

dt-bindings: display: bridge: ldb: Implement simple Freescale i.MX8MP LDB bridge 



The i.MX8MP contains two syscon registers which are responsible
for configuring the on-SoC DPI-to-LVDS serializer. Add DT binding
which represents this serializer as a bridge.

Acked-by: default avatarSam Ravnborg <sam@ravnborg.org>
Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Robby Cai <robby.cai@nxp.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: devicetree@vger.kernel.org
To: dri-devel@lists.freedesktop.org
Signed-off-by: default avatarRobert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220426193645.244792-1-marex@denx.de
parent ab0af093

Documentation/devicetree/bindings/display/bridge/fsl,ldb.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/fsl,ldb.yaml#

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



title: Freescale i.MX8MP DPI to LVDS bridge chip



maintainers:

  - Marek Vasut <marex@denx.de>



description: |

  The i.MX8MP mediamix contains two registers which are responsible

  for configuring the on-SoC DPI-to-LVDS serializer. This describes

  those registers as bridge within the DT.



properties:

  compatible:

    const: fsl,imx8mp-ldb



  clocks:

    maxItems: 1



  clock-names:

    const: ldb



  ports:

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



    properties:

      port@0:

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

        description: Video port for DPI input.



      port@1:

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

        description: Video port for LVDS Channel-A output (panel or bridge).



      port@2:

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

        description: Video port for LVDS Channel-B output (panel or bridge).



    required:

      - port@0

      - port@1



required:

  - compatible

  - clocks

  - ports



additionalProperties: false



examples:

  - |

    #include <dt-bindings/clock/imx8mp-clock.h>



    blk-ctrl {

        bridge {

            compatible = "fsl,imx8mp-ldb";

            clocks = <&clk IMX8MP_CLK_MEDIA_LDB>;

            clock-names = "ldb";



            ports {

                #address-cells = <1>;

                #size-cells = <0>;



                port@0 {

                    reg = <0>;



                    ldb_from_lcdif2: endpoint {

                        remote-endpoint = <&lcdif2_to_ldb>;

                    };

                };



                port@1 {

                    reg = <1>;



                    ldb_lvds_ch0: endpoint {

                        remote-endpoint = <&ldb_to_lvdsx4panel>;

                    };

                };



                port@2 {

                    reg = <2>;



                    ldb_lvds_ch1: endpoint {

                    };

                };

            };

        };

    };