arm,komeda.yaml

  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
  7title: Arm Komeda display processor
  8
  9maintainers:
 10  - Liviu Dudau <Liviu.Dudau@arm.com>
 11  - Andre Przywara <andre.przywara@arm.com>
 12
 13description:
 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
 18properties:
 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
 58patternProperties:
 59  '^pipeline@[01]$':
 60    type: object
 61    additionalProperties: false
 62    description:
 63      clocks
 64
 65    properties:
 66      reg:
 67        enum: [ 0, 1 ]
 68
 69      clock-names:
 70        const: pxclk
 71
 72      clocks:
 73        maxItems: 1
 74        description: The input reference for the pixel clock.
 75
 76      port:
 77        $ref: /schemas/graph.yaml#/$defs/port-base
 78        unevaluatedProperties: false
 79
 80additionalProperties: false
 81
 82required:
 83  - "#address-cells"
 84  - "#size-cells"
 85  - compatible
 86  - reg
 87  - interrupts
 88  - clock-names
 89  - clocks
 90  - pipeline@0
 91
 92examples:
 93  - |
 94    display@c00000 {
 95        #address-cells = <1>;
 96        #size-cells = <0>;
 97        compatible = "arm,mali-d71";
 98        reg = <0xc00000 0x20000>;
 99        interrupts = <168>;
100        clocks = <&dpu_aclk>;
101        clock-names = "aclk";
102        iommus = <&smmu 0>, <&smmu 1>, <&smmu 2>, <&smmu 3>,
103                 <&smmu 8>,
104                 <&smmu 4>, <&smmu 5>, <&smmu 6>, <&smmu 7>,
105                 <&smmu 9>;
106
107        dp0_pipe0: pipeline@0 {
108            clocks = <&fpgaosc2>;
109            clock-names = "pxclk";
110            reg = <0>;
111
112            port {
113                dp0_pipe0_out: endpoint {
114                    remote-endpoint = <&db_dvi0_in>;
115                };
116            };
117        };
118
119        dp0_pipe1: pipeline@1 {
120            clocks = <&fpgaosc2>;
121            clock-names = "pxclk";
122            reg = <1>;
123
124            port {
125                dp0_pipe1_out: endpoint {
126                    remote-endpoint = <&db_dvi1_in>;
127                };
128            };
129        };
130    };
131...