# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/media/rockchip,rk3568-mipi-csi2.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Rockchip MIPI CSI-2 Receiver

maintainers:
  - Michael Riesch <michael.riesch@collabora.com>

description:
  The Rockchip MIPI CSI-2 Receiver is a CSI-2 bridge with one input port and
  one output port. It receives the data with the help of an external MIPI PHY
  (C-PHY or D-PHY) and passes it to the Rockchip Video Capture (VICAP) block.

properties:
  compatible:
    enum:
      - fsl,imx93-mipi-csi2
      - rockchip,rk3568-mipi-csi2

  reg:
    maxItems: 1

  interrupts:
    items:
      - description: Interrupt that signals changes in CSI2HOST_ERR1.
      - description: Interrupt that signals changes in CSI2HOST_ERR2.
    minItems: 1

  interrupt-names:
    items:
      - const: err1
      - const: err2
    minItems: 1

  clocks:
    minItems: 1
    maxItems: 2

  clock-names:
    items:
      - const: per
      - const: pixel
    minItems: 1

  phys:
    maxItems: 1
    description: MIPI C-PHY or D-PHY.

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

    properties:
      port@0:
        $ref: /schemas/graph.yaml#/$defs/port-base
        unevaluatedProperties: false
        description: Input port node. Connect to e.g., a MIPI CSI-2 image sensor.

        properties:
          endpoint:
            $ref: video-interfaces.yaml#
            unevaluatedProperties: false

            properties:
              bus-type:
                enum:
                  - 1 # MEDIA_BUS_TYPE_CSI2_CPHY
                  - 4 # MEDIA_BUS_TYPE_CSI2_DPHY

              data-lanes:
                minItems: 1
                maxItems: 4

            required:
              - bus-type
              - data-lanes

      port@1:
        $ref: /schemas/graph.yaml#/properties/port
        description: Output port connected to a Rockchip VICAP port.

    required:
      - port@0
      - port@1

  power-domains:
    maxItems: 1

  resets:
    maxItems: 1

required:
  - compatible
  - reg
  - clocks
  - phys
  - ports
  - power-domains

additionalProperties: false

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: rockchip,rk3568-mipi-csi2
    then:
      properties:
        interrupts:
          minItems: 2
        interrupt-names:
          minItems: 2
        clocks:
          maxItems: 1
        clock-names:
          maxItems: 1
      required:
        - resets

  - if:
      properties:
        compatible:
          contains:
            const: fsl,imx93-mipi-csi2
    then:
      properties:
        interrupts:
          maxItems: 1
        interrupt-names: false
        clocks:
          minItems: 2
        clock-names:
          minItems: 2

examples:
  - |
    #include <dt-bindings/clock/rk3568-cru.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/media/video-interfaces.h>
    #include <dt-bindings/power/rk3568-power.h>

    soc {
        interrupt-parent = <&gic>;
        #address-cells = <2>;
        #size-cells = <2>;

        csi: csi@fdfb0000 {
            compatible = "rockchip,rk3568-mipi-csi2";
            reg = <0x0 0xfdfb0000 0x0 0x10000>;
            interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
            interrupt-names = "err1", "err2";
            clocks = <&cru PCLK_CSI2HOST1>;
            phys = <&csi_dphy>;
            power-domains = <&power RK3568_PD_VI>;
            resets = <&cru SRST_P_CSI2HOST1>;

            ports {
                #address-cells = <1>;
                #size-cells = <0>;

                csi_in: port@0 {
                    reg = <0>;

                    csi_input: endpoint {
                        bus-type = <MEDIA_BUS_TYPE_CSI2_DPHY>;
                        data-lanes = <1 2 3 4>;
                        remote-endpoint = <&imx415_output>;
                    };
                };

                csi_out: port@1 {
                    reg = <1>;

                    csi_output: endpoint {
                        remote-endpoint = <&vicap_mipi_input>;
                    };
                };
            };
        };
    };