xref: /linux/Documentation/devicetree/bindings/display/arm,komeda.yaml (revision fc2d791a43d3880496d1c729b8bd74d2c19cb4e7) 
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          - enum:
23              - arm,mali-d32
24              - armchina,linlon-d6
25          - const: arm,mali-d71
26      - const: arm,mali-d71
27
28  reg:
29    maxItems: 1
30
31  interrupts:
32    maxItems: 1
33
34  clock-names:
35    const: aclk
36
37  clocks:
38    maxItems: 1
39    description: The main DPU processor clock
40
41  "#address-cells":
42    const: 1
43
44  "#size-cells":
45    const: 0
46
47  memory-region:
48    maxItems: 1
49    description:
50      Phandle to a node describing memory to be used for the framebuffer.
51      If not present, the framebuffer may be located anywhere in memory.
52
53  iommus:
54    description:
55      The stream IDs for each of the used pipelines, each four IDs for the
56      four layers, plus one for the write-back stream.
57    minItems: 5
58    maxItems: 10
59
60patternProperties:
61  '^pipeline@[01]$':
62    type: object
63    additionalProperties: false
64    description:
65      clocks
66
67    properties:
68      reg:
69        enum: [ 0, 1 ]
70
71      clock-names:
72        const: pxclk
73
74      clocks:
75        maxItems: 1
76        description: The input reference for the pixel clock.
77
78      port:
79        $ref: /schemas/graph.yaml#/$defs/port-base
80        unevaluatedProperties: false
81
82additionalProperties: false
83
84required:
85  - "#address-cells"
86  - "#size-cells"
87  - compatible
88  - reg
89  - interrupts
90  - clock-names
91  - clocks
92  - pipeline@0
93
94examples:
95  - |
96    display@c00000 {
97        #address-cells = <1>;
98        #size-cells = <0>;
99        compatible = "arm,mali-d71";
100        reg = <0xc00000 0x20000>;
101        interrupts = <168>;
102        clocks = <&dpu_aclk>;
103        clock-names = "aclk";
104        iommus = <&smmu 0>, <&smmu 1>, <&smmu 2>, <&smmu 3>,
105                 <&smmu 8>,
106                 <&smmu 4>, <&smmu 5>, <&smmu 6>, <&smmu 7>,
107                 <&smmu 9>;
108
109        dp0_pipe0: pipeline@0 {
110            clocks = <&fpgaosc2>;
111            clock-names = "pxclk";
112            reg = <0>;
113
114            port {
115                dp0_pipe0_out: endpoint {
116                    remote-endpoint = <&db_dvi0_in>;
117                };
118            };
119        };
120
121        dp0_pipe1: pipeline@1 {
122            clocks = <&fpgaosc2>;
123            clock-names = "pxclk";
124            reg = <1>;
125
126            port {
127                dp0_pipe1_out: endpoint {
128                    remote-endpoint = <&db_dvi1_in>;
129                };
130            };
131        };
132    };
133...
134