arm,komeda.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/display/arm,komeda.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Arm Komeda display processor
    8 
    9 maintainers:
   10   - Liviu Dudau <Liviu.Dudau@arm.com>
   11   - Andre Przywara <andre.przywara@arm.com>
   12 
   13 description:
   14   The Arm Mali D71 display processor supports up to two displays with up
   15   to a 4K resolution each. Each pipeline can be composed of up to four
   16   layers. It is typically connected to a digital display connector like HDMI.
   17 
   18 properties:
   19   compatible:
   20     oneOf:
   21       - items:
   22           - const: arm,mali-d32
   23           - const: arm,mali-d71
   24       - const: arm,mali-d71
   25 
   26   reg:
   27     maxItems: 1
   28 
   29   interrupts:
   30     maxItems: 1
   31 
   32   clock-names:
   33     const: aclk
   34 
   35   clocks:
   36     maxItems: 1
   37     description: The main DPU processor clock
   38 
   39   "#address-cells":
   40     const: 1
   41 
   42   "#size-cells":
   43     const: 0
   44 
   45   memory-region:
   46     maxItems: 1
   47     description:
   48       Phandle to a node describing memory to be used for the framebuffer.
   49       If not present, the framebuffer may be located anywhere in memory.
   50 
   51   iommus:
   52     description:
   53       The stream IDs for each of the used pipelines, each four IDs for the
   54       four layers, plus one for the write-back stream.
   55     minItems: 5
   56     maxItems: 10
   57 
   58 patternProperties:
   59   '^pipeline@[01]$':
   60     type: object
   61     description:
   62       clocks
   63 
   64     properties:
   65       reg:
   66         enum: [ 0, 1 ]
   67 
   68       clock-names:
   69         const: pxclk
   70 
   71       clocks:
   72         maxItems: 1
   73         description: The input reference for the pixel clock.
   74 
   75       port:
   76         $ref: /schemas/graph.yaml#/$defs/port-base
   77         unevaluatedProperties: false
   78 
   79 additionalProperties: false
   80 
   81 required:
   82   - "#address-cells"
   83   - "#size-cells"
   84   - compatible
   85   - reg
   86   - interrupts
   87   - clock-names
   88   - clocks
   89   - pipeline@0
   90 
   91 examples:
   92   - |
   93     display@c00000 {
   94         #address-cells = <1>;
   95         #size-cells = <0>;
   96         compatible = "arm,mali-d71";
   97         reg = <0xc00000 0x20000>;
   98         interrupts = <168>;
   99         clocks = <&dpu_aclk>;
  100         clock-names = "aclk";
  101         iommus = <&smmu 0>, <&smmu 1>, <&smmu 2>, <&smmu 3>,
  102                  <&smmu 8>,
  103                  <&smmu 4>, <&smmu 5>, <&smmu 6>, <&smmu 7>,
  104                  <&smmu 9>;
  105 
  106         dp0_pipe0: pipeline@0 {
  107             clocks = <&fpgaosc2>;
  108             clock-names = "pxclk";
  109             reg = <0>;
  110 
  111             port {
  112                 dp0_pipe0_out: endpoint {
  113                     remote-endpoint = <&db_dvi0_in>;
  114                 };
  115             };
  116         };
  117 
  118         dp0_pipe1: pipeline@1 {
  119             clocks = <&fpgaosc2>;
  120             clock-names = "pxclk";
  121             reg = <1>;
  122 
  123             port {
  124                 dp0_pipe1_out: endpoint {
  125                     remote-endpoint = <&db_dvi1_in>;
  126                 };
  127             };
  128         };
  129     };
  130 ...

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