dt-bindings: display: bridge: Add binding for R-Car MIPI DSI/CSI-2 TX

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/display/bridge/renesas,dsi-csi2-tx.yaml#

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

title: Renesas R-Car MIPI DSI/CSI-2 Encoder

maintainers:

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

description: |

  This binding describes the MIPI DSI/CSI-2 encoder embedded in the Renesas

  R-Car V3U SoC. The encoder can operate in either DSI or CSI-2 mode, with up

  to four data lanes.

properties:

  compatible:

    enum:

      - renesas,r8a779a0-dsi-csi2-tx    # for V3U

  reg:

    maxItems: 1

  clocks:

    items:

      - description: Functional clock

      - description: DSI (and CSI-2) functional clock

      - description: PLL reference clock

  clock-names:

    items:

      - const: fck

      - const: dsi

      - const: pll

  power-domains:

    maxItems: 1

  resets:

    maxItems: 1

  ports:

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

    properties:

      port@0:

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

        description: Parallel input port

      port@1:

        $ref: /schemas/graph.yaml#/$defs/port-base

        unevaluatedProperties: false

        description: DSI/CSI-2 output port

        properties:

          endpoint:

            $ref: /schemas/media/video-interfaces.yaml#

            unevaluatedProperties: false

            properties:

              data-lanes:

                minItems: 1

                maxItems: 4

            required:

              - data-lanes

    required:

      - port@0

      - port@1

required:

  - compatible

  - reg

  - clocks

  - power-domains

  - resets

  - ports

additionalProperties: false

examples:

  - |

    #include <dt-bindings/clock/r8a779a0-cpg-mssr.h>

    #include <dt-bindings/power/r8a779a0-sysc.h>

    dsi0: dsi-encoder@fed80000 {

        compatible = "renesas,r8a779a0-dsi-csi2-tx";

        reg = <0xfed80000 0x10000>;

        power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;

        clocks = <&cpg CPG_MOD 415>,

                 <&cpg CPG_CORE R8A779A0_CLK_DSI>,

                 <&cpg CPG_CORE R8A779A0_CLK_CP>;

        clock-names = "fck", "dsi", "pll";

        resets = <&cpg 415>;

        ports {

            #address-cells = <1>;

            #size-cells = <0>;

            port@0 {

                reg = <0>;

                dsi0_in: endpoint {

                    remote-endpoint = <&du_out_dsi0>;

                };

            };

            port@1 {

                reg = <1>;

                dsi0_out: endpoint {

                    data-lanes = <1 2>;

                    remote-endpoint = <&sn65dsi86_in>;

                };

            };

        };

    };

...

L:	linux-renesas-soc@vger.kernel.org

S:	Supported

T:	git git://linuxtv.org/pinchartl/media drm/du/next

F:	Documentation/devicetree/bindings/display/bridge/renesas,dsi-csi2-tx.yaml

F:	Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.yaml

F:	Documentation/devicetree/bindings/display/bridge/renesas,lvds.yaml

F:	Documentation/devicetree/bindings/display/renesas,du.yaml