kernel/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml

# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/dpu-sc7180.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm Display DPU dt properties for SC7180 target

maintainers:
  - Krishna Manikandan <mkrishn@codeaurora.org>

description: |
  Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates
  sub-blocks like DPU display controller, DSI and DP interfaces etc. Device tree
  bindings of MDSS and DPU are mentioned for SC7180 target.

properties:
  compatible:
    items:
      - const: qcom,sc7180-mdss

  reg:
    maxItems: 1

  reg-names:
    const: mdss

  power-domains:
    maxItems: 1

  clocks:
    items:
      - description: Display AHB clock from gcc
      - description: Display AHB clock from dispcc
      - description: Display core clock

  clock-names:
    items:
      - const: iface
      - const: ahb
      - const: core

  interrupts:
    maxItems: 1

  interrupt-controller: true

  "#address-cells": true

  "#size-cells": true

  "#interrupt-cells":
    const: 1

  iommus:
    items:
      - description: Phandle to apps_smmu node with SID mask for Hard-Fail port0

  ranges: true

  interconnects:
    items:
      - description: Interconnect path specifying the port ids for data bus

  interconnect-names:
    const: mdp0-mem

patternProperties:
  "^display-controller@[0-9a-f]+$":
    type: object
    description: Node containing the properties of DPU.

    properties:
      compatible:
        items:
          - const: qcom,sc7180-dpu

      reg:
        items:
          - description: Address offset and size for mdp register set
          - description: Address offset and size for vbif register set

      reg-names:
        items:
          - const: mdp
          - const: vbif

      clocks:
        items:
          - description: Display hf axi clock
          - description: Display ahb clock
          - description: Display rotator clock
          - description: Display lut clock
          - description: Display core clock
          - description: Display vsync clock

      clock-names:
        items:
          - const: bus
          - const: iface
          - const: rot
          - const: lut
          - const: core
          - const: vsync

      interrupts:
        maxItems: 1

      power-domains:
        maxItems: 1

      operating-points-v2: true

      ports:
        $ref: /schemas/graph.yaml#/properties/ports
        description: |
          Contains the list of output ports from DPU device. These ports
          connect to interfaces that are external to the DPU hardware,
          such as DSI, DP etc. Each output port contains an endpoint that
          describes how it is connected to an external interface.

        properties:
          port@0:
            $ref: /schemas/graph.yaml#/properties/port
            description: DPU_INTF1 (DSI1)

          port@2:
            $ref: /schemas/graph.yaml#/properties/port
            description: DPU_INTF0 (DP)

        required:
          - port@0

    required:
      - compatible
      - reg
      - reg-names
      - clocks
      - interrupts
      - power-domains
      - operating-points-v2
      - ports

required:
  - compatible
  - reg
  - reg-names
  - power-domains
  - clocks
  - interrupts
  - interrupt-controller
  - iommus
  - ranges

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
    #include <dt-bindings/clock/qcom,gcc-sc7180.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/interconnect/qcom,sdm845.h>
    #include <dt-bindings/power/qcom-rpmpd.h>

    display-subsystem@ae00000 {
         #address-cells = <1>;
         #size-cells = <1>;
         compatible = "qcom,sc7180-mdss";
         reg = <0xae00000 0x1000>;
         reg-names = "mdss";
         power-domains = <&dispcc MDSS_GDSC>;
         clocks = <&gcc GCC_DISP_AHB_CLK>,
                  <&dispcc DISP_CC_MDSS_AHB_CLK>,
                  <&dispcc DISP_CC_MDSS_MDP_CLK>;
         clock-names = "iface", "ahb", "core";

         interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
         interrupt-controller;
         #interrupt-cells = <1>;

         interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>;
         interconnect-names = "mdp0-mem";

         iommus = <&apps_smmu 0x800 0x2>;
         ranges;

         display-controller@ae01000 {
                   compatible = "qcom,sc7180-dpu";
                   reg = <0x0ae01000 0x8f000>,
                         <0x0aeb0000 0x2008>;

                   reg-names = "mdp", "vbif";

                   clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
                            <&dispcc DISP_CC_MDSS_AHB_CLK>,
                            <&dispcc DISP_CC_MDSS_ROT_CLK>,
                            <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
                            <&dispcc DISP_CC_MDSS_MDP_CLK>,
                            <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
                   clock-names = "bus", "iface", "rot", "lut", "core",
                                 "vsync";

                   interrupt-parent = <&mdss>;
                   interrupts = <0>;
                   power-domains = <&rpmhpd SC7180_CX>;
                   operating-points-v2 = <&mdp_opp_table>;

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

                           port@0 {
                                   reg = <0>;
                                   dpu_intf1_out: endpoint {
                                                  remote-endpoint = <&dsi0_in>;
                                   };
                           };

                            port@2 {
                                    reg = <2>;
                                    dpu_intf0_out: endpoint {
                                                   remote-endpoint = <&dp_in>;
                                    };
                            };
                   };
         };
    };
...