android_kernel_samsung_sm8750-devicetrees/qcom/display/bindings/dsi.yaml

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

title: Qualcomm Technologies Inc. Snapdragon DSI Controller output

description: >
  [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
  [2] Documentation/devicetree/bindings/graph.txt
  [3] Documentation/devicetree/bindings/media/video-interfaces.txt
  [4] Documentation/devicetree/bindings/display/panel/

maintainers:
  - Vara Reddy <quic_varar@quicinc.com>
  - Vishnuvardhan Prodduturi <quic_vproddut@quicinc.com>

properties:
  compatible:
    const: qcom,mdss-dsi-ctrl

  reg:
    description: Physical base address and length of the registers of controller

  reg-names:
    description: The names of register regions.
     required:
       - "dsi_ctrl"

  interrupts:
    description: The interrupt signal from the DSI block.

  power-domains:
    const: <&mmcc MDSS_GDSC>

  clocks:
    description: Phandles to device clocks.
    $ref: /schemas/types.yaml#/definitions/phandle

  clock-names:
    description: >
      Clocks necessary for DSI operation. For DSIv2, we need an additional clock "src" and for
      DSI6G v2.0 onwards, we also need the clock "byte_intf".
    required:
      - "mdp_core"
      - "iface"
      - "bus"
      - "core_mmss"
      - "byte"
      - "pixel"
      - "core"

  assigned-clocks:
    description: Parents of "byte" and "pixel" for the given platform.

  assigned-clock-parents:
    description: >
      The Byte clock and Pixel clock PLL outputs provided
      by a DSI PHY block. See [1] for details on clock bindings.

  vdd-supply:
    description: phandle to vdd regulator device node
    $ref: /schemas/types.yaml#/definitions/phandle

  vddio-supply:
    description: phandle to vdd-io regulator device node
    $ref: /schemas/types.yaml#/definitions/phandle

  vdda-supply:
    description: phandle to vdda regulator device node
    $ref: /schemas/types.yaml#/definitions/phandle

  phys:
    description: phandle to DSI PHY device node
    $ref: /schemas/types.yaml#/definitions/phandle

  phy-names:
    description: the name of the corresponding PHY device
    $ref: /schemas/types.yaml#/definitions/string-array

  syscon-sfpb:
    description: A phandle to mmss_sfpb syscon node (only for DSIv2)
    $ref: /schemas/types.yaml#/definitions/phandle

  panel@0:
    description: >
      Node of panel connected to this DSI controller.
      See files in [4] for each supported panel.

  qcom,dual-dsi-mode:
    description: >
      Boolean value indicating if the DSI controller is
      driving a panel which needs 2 DSI links.

  qcom,master-dsi:
    description: >
      Boolean value indicating if the DSI controller is driving
      the master link of the 2-DSI panel.

  qcom,sync-dual-dsi:
    description: >
      Boolean value indicating if the DSI controller is
      driving a 2-DSI panel whose 2 links need receive command simultaneously.

  pinctrl-names:
    description: the pin control state names; should contain "default"

  pinctrl-0:
    description: the default pinctrl state (active)

  pinctrl-n:
    description: the "sleep" pinctrl state

  qcom,dsi-ctrl-shared:
    description: >
      Boolean value indicating if the DSI controller is
      shared between dual displays.

required:
  - compatible
  - reg
  - reg-names
  - interrupts
  - power-domains
  - clocks
  - clock-names
  - assigned-clocks
  - assigned-clock-parents
  - vdd-supply
  - vddio-supply
  - vdda-supply
  - phys
  - phy-names
  - syscon-sfpb
  - ports

examples:
  - |
    dsi0: dsi@fd922800 {
      compatible = "qcom,mdss-dsi-ctrl";
      qcom,dsi-host-index = <0>;
      interrupt-parent = <&mdp>;
      interrupts = <4 0>;
      reg-names = "dsi_ctrl";
      reg = <0xfd922800 0x200>;
      power-domains = <&mmcc MDSS_GDSC>;
      clock-names =
        "bus",
        "byte",
        "core",
        "core_mmss",
        "iface",
        "mdp_core",
        "pixel";
      clocks =
        <&mmcc MDSS_AXI_CLK>,
        <&mmcc MDSS_BYTE0_CLK>,
        <&mmcc MDSS_ESC0_CLK>,
        <&mmcc MMSS_MISC_AHB_CLK>,
        <&mmcc MDSS_AHB_CLK>,
        <&mmcc MDSS_MDP_CLK>,
        <&mmcc MDSS_PCLK0_CLK>;

      assigned-clocks =
             <&mmcc BYTE0_CLK_SRC>,
             <&mmcc PCLK0_CLK_SRC>;
      assigned-clock-parents =
             <&dsi_phy0 0>,
             <&dsi_phy0 1>;

      vdda-supply = <&pma8084_l2>;
      vdd-supply = <&pma8084_l22>;
      vddio-supply = <&pma8084_l12>;

      phys = <&dsi_phy0>;
      phy-names ="dsi-phy";

      qcom,dual-dsi-mode;
      qcom,master-dsi;
      qcom,sync-dual-dsi;
      qcom,dsi-ctrl-shared;

      qcom,mdss-mdp-transfer-time-us = <12000>;
      frame-threshold-time-us = <800>;

      pinctrl-names = "default", "sleep";
      pinctrl-0 = <&dsi_active>;
      pinctrl-1 = <&dsi_suspend>;

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

        port@0 {
          reg = <0>;
          dsi0_in: endpoint {
            remote-endpoint = <&mdp_intf1_out>;
          };
        };

        port@1 {
          reg = <1>;
          dsi0_out: endpoint {
            remote-endpoint = <&panel_in>;
            data-lanes = <0 1 2 3>;
          };
        };
      };

      panel: panel@0 {
        compatible = "sharp,lq101r1sx01";
        reg = <0>;
        link2 = <&secondary>;

        power-supply = <...>;
        backlight = <...>;

        port {
          panel_in: endpoint {
            remote-endpoint = <&dsi0_out>;
          };
        };
      };
    };
...