# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-csi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: NVIDIA Tegra20 CSI controller

maintainers:
  - Svyatoslav Ryhel <clamor95@gmail.com>

properties:
  compatible:
    enum:
      - nvidia,tegra20-csi
      - nvidia,tegra30-csi

  reg:
    maxItems: 1

  clocks:
    minItems: 1
    items:
      - description: module clock
      - description: PAD A clock
      - description: PAD B clock

  clock-names:
    items:
      - const: csi
      - const: csia-pad
      - const: csib-pad

  avdd-dsi-csi-supply:
    description: DSI/CSI power supply. Must supply 1.2 V.

  power-domains:
    maxItems: 1
 
  "#nvidia,mipi-calibrate-cells":
    description:
      The number of cells in a MIPI calibration specifier. Should be 1.
      The single cell specifies an id of the pad that need to be
      calibrated for a given device. Valid pad ids for receiver would be
      0 for CSI-A; 1 for CSI-B; 2 for DSI-A and 3 for DSI-B.
    $ref: /schemas/types.yaml#/definitions/uint32
    const: 1
 
  "#address-cells":
    const: 1
 
  "#size-cells":
    const: 0

patternProperties:
  "^channel@[0-1]$":
    type: object
    description: channel 0 represents CSI-A and 1 represents CSI-B
    additionalProperties: false

    properties:
      reg:
        maximum: 1

      nvidia,mipi-calibrate:
        description: Should contain a phandle and a specifier specifying
          which pad is used by this CSI channel and needs to be calibrated.
        $ref: /schemas/types.yaml#/definitions/phandle-array
 
      "#address-cells":
        const: 1
 
      "#size-cells":
        const: 0

      port@0:
        $ref: /schemas/graph.yaml#/$defs/port-base
        unevaluatedProperties: false
        description: port receiving the video stream from the sensor

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

            required:
              - data-lanes

      port@1:
        $ref: /schemas/graph.yaml#/properties/port
        description: port sending the video stream to the VI

    required:
      - reg
      - "#address-cells"
      - "#size-cells"
      - port@0
      - port@1

allOf:
  - if:
      properties:
        compatible:
          contains:
            enum:
              - nvidia,tegra20-csi
    then:
      properties:
        clocks:
          maxItems: 1

        clock-names: false

  - if:
      properties:
        compatible:
          contains:
            enum:
              - nvidia,tegra30-csi
    then:
      properties:
        clocks:
          minItems: 3

        clock-names:
          minItems: 3

additionalProperties: false

required:
  - compatible
  - reg
  - clocks
  - power-domains
  - "#address-cells"
  - "#size-cells"
 
# see nvidia,tegra20-vi.yaml for an example