linuxdebug/Documentation/devicetree/bindings/display/msm/dpu-qcm2290.yaml

# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/dpu-qcm2290.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm Display DPU dt properties for QCM2290 target

maintainers:
  - Loic Poulain <loic.poulain@linaro.org>

description: |
  Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates
  sub-blocks like DPU display controller and DSI. Device tree bindings of MDSS
  and DPU are mentioned for QCM2290 target.

properties:
  compatible:
    items:
      - const: qcom,qcm2290-mdss

  reg:
    maxItems: 1

  reg-names:
    const: mdss

  power-domains:
    maxItems: 1

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

  clock-names:
    items:
      - const: iface
      - const: bus
      - 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
      - description: Phandle to apps_smmu node with SID mask for Hard-Fail port1

  ranges: true

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

  interconnect-names:
    const: mdp0-mem

  resets:
    items:
      - description: MDSS_CORE reset

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

    properties:
      compatible:
        items:
          - const: qcom,qcm2290-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 AXI clock from gcc
          - description: Display AHB clock from dispcc
          - description: Display core clock from dispcc
          - description: Display lut clock from dispcc
          - description: Display vsync clock from dispcc

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

      interrupts:
        maxItems: 1

      power-domains:
        maxItems: 1

      operating-points-v2: true
      opp-table:
        type: object

      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. 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)

        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-qcm2290.h>
    #include <dt-bindings/clock/qcom,gcc-qcm2290.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/interconnect/qcom,qcm2290.h>
    #include <dt-bindings/power/qcom-rpmpd.h>

    mdss: mdss@5e00000 {
        #address-cells = <1>;
        #size-cells = <1>;
        compatible = "qcom,qcm2290-mdss";
        reg = <0x05e00000 0x1000>;
        reg-names = "mdss";
        power-domains = <&dispcc MDSS_GDSC>;
        clocks = <&gcc GCC_DISP_AHB_CLK>,
                 <&gcc GCC_DISP_HF_AXI_CLK>,
                 <&dispcc DISP_CC_MDSS_MDP_CLK>;
        clock-names = "iface", "bus", "core";

        interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>;
        interrupt-controller;
        #interrupt-cells = <1>;

        interconnects = <&mmrt_virt MASTER_MDP0 &bimc SLAVE_EBI1>;
        interconnect-names = "mdp0-mem";

        iommus = <&apps_smmu 0x420 0x2>,
                 <&apps_smmu 0x421 0x0>;
        ranges;

        mdss_mdp: display-controller@5e01000 {
                compatible = "qcom,qcm2290-dpu";
                reg = <0x05e01000 0x8f000>,
                      <0x05eb0000 0x2008>;
                reg-names = "mdp", "vbif";

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

                operating-points-v2 = <&mdp_opp_table>;
                power-domains = <&rpmpd QCM2290_VDDCX>;

                interrupt-parent = <&mdss>;
                interrupts = <0>;

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

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