xref: /openbmc/linux/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml (revision 4334aec0)

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

title: NVIDIA Tegra Display Serial Interface

maintainers:
  - Thierry Reding <thierry.reding@gmail.com>
  - Jon Hunter <jonathanh@nvidia.com>

properties:
  compatible:
    oneOf:
      - enum:
          - nvidia,tegra20-dsi
          - nvidia,tegra30-dsi
          - nvidia,tegra114-dsi
          - nvidia,tegra124-dsi
          - nvidia,tegra210-dsi
          - nvidia,tegra186-dsi

      - items:
          - const: nvidia,tegra132-dsi
          - const: nvidia,tegra124-dsi

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    minItems: 2
    maxItems: 3

  clock-names:
    minItems: 2
    maxItems: 3

  resets:
    items:
      - description: module reset

  reset-names:
    items:
      - const: dsi

  operating-points-v2: true

  power-domains:
    maxItems: 1

  avdd-dsi-csi-supply:
    description: phandle of a supply that powers the DSI controller

  nvidia,mipi-calibrate:
    description: Should contain a phandle and a specifier specifying
      which pads are used by this DSI output and need to be
      calibrated. See nvidia,tegra114-mipi.yaml for details.
    $ref: /schemas/types.yaml#/definitions/phandle-array

  nvidia,ddc-i2c-bus:
    description: phandle of an I2C controller used for DDC EDID
      probing
    $ref: /schemas/types.yaml#/definitions/phandle

  nvidia,hpd-gpio:
    description: specifies a GPIO used for hotplug detection
    maxItems: 1

  nvidia,edid:
    description: supplies a binary EDID blob
    $ref: /schemas/types.yaml#/definitions/uint8-array

  nvidia,panel:
    description: phandle of a display panel
    $ref: /schemas/types.yaml#/definitions/phandle

  nvidia,ganged-mode:
    description: contains a phandle to a second DSI controller to
      gang up with in order to support up to 8 data lanes
    $ref: /schemas/types.yaml#/definitions/phandle

allOf:
  - $ref: ../dsi-controller.yaml#
  - if:
      properties:
        compatible:
          contains:
            enum:
              - nvidia,tegra20-dsi
              - nvidia,tegra30-dsi
    then:
      properties:
        clocks:
          items:
            - description: DSI module clock
            - description: input for the pixel clock

        clock-names:
          items:
            - const: dsi
            - const: parent
    else:
      properties:
        clocks:
          items:
            - description: DSI module clock
            - description: low-power module clock
            - description: input for the pixel clock

        clock-names:
          items:
            - const: dsi
            - const: lp
            - const: parent

  - if:
      properties:
        compatible:
          contains:
            const: nvidia,tegra186-dsi
    then:
      required:
        - interrupts

unevaluatedProperties: false

required:
  - compatible
  - reg
  - clocks
  - clock-names
  - resets
  - reset-names

examples:
  - |
    #include <dt-bindings/clock/tegra186-clock.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/power/tegra186-powergate.h>
    #include <dt-bindings/reset/tegra186-reset.h>

    dsi@15300000 {
        compatible = "nvidia,tegra186-dsi";
        reg = <0x15300000 0x10000>;
        interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&bpmp TEGRA186_CLK_DSI>,
                 <&bpmp TEGRA186_CLK_DSIA_LP>,
                 <&bpmp TEGRA186_CLK_PLLD>;
        clock-names = "dsi", "lp", "parent";
        resets = <&bpmp TEGRA186_RESET_DSI>;
        reset-names = "dsi";

        power-domains = <&bpmp TEGRA186_POWER_DOMAIN_DISP>;
    };