summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/display/bridge/cdns,mhdp8546.yaml
blob: 74d675fc6e7ba65b56f2572e834019a18871f4cb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/display/bridge/cdns,mhdp8546.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"

title: Cadence MHDP8546 bridge

maintainers:
  - Swapnil Jakhade <sjakhade@cadence.com>
  - Yuti Amonkar <yamonkar@cadence.com>

properties:
  compatible:
    enum:
      - cdns,mhdp8546
      - ti,j721e-mhdp8546

  reg:
    minItems: 1
    maxItems: 2
    items:
      - description:
          Register block of mhdptx apb registers up to PHY mapped area (AUX_CONFIG_P).
          The AUX and PMA registers are not part of this range, they are instead
          included in the associated PHY.
      - description:
          Register block for DSS_EDP0_INTG_CFG_VP registers in case of TI J7 SoCs.

  reg-names:
    minItems: 1
    maxItems: 2
    items:
      - const: mhdptx
      - const: j721e-intg

  clocks:
    maxItems: 1
    description:
      DP bridge clock, used by the IP to know how to translate a number of
      clock cycles into a time (which is used to comply with DP standard timings
      and delays).

  phys:
    maxItems: 1
    description:
      phandle to the DisplayPort PHY.

  phy-names:
    items:
      - const: dpphy

  power-domains:
    maxItems: 1

  interrupts:
    maxItems: 1

  ports:
    type: object
    description:
      Ports as described in Documentation/devicetree/bindings/graph.txt.

    properties:
      '#address-cells':
        const: 1

      '#size-cells':
        const: 0

      port@0:
        type: object
        description:
          First input port representing the DP bridge input.

      port@1:
        type: object
        description:
          Second input port representing the DP bridge input.

      port@2:
        type: object
        description:
          Third input port representing the DP bridge input.

      port@3:
        type: object
        description:
          Fourth input port representing the DP bridge input.

      port@4:
        type: object
        description:
          Output port representing the DP bridge output.

    required:
      - port@0
      - port@4
      - '#address-cells'
      - '#size-cells'

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: ti,j721e-mhdp8546
    then:
      properties:
        reg:
          minItems: 2
        reg-names:
          minItems: 2
    else:
      properties:
        reg:
          maxItems: 1
        reg-names:
          maxItems: 1

required:
  - compatible
  - clocks
  - reg
  - reg-names
  - phys
  - phy-names
  - interrupts
  - ports

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    bus {
        #address-cells = <2>;
        #size-cells = <2>;

        mhdp: dp-bridge@f0fb000000 {
            compatible = "cdns,mhdp8546";
            reg = <0xf0 0xfb000000 0x0 0x1000000>;
            reg-names = "mhdptx";
            clocks = <&mhdp_clock>;
            phys = <&dp_phy>;
            phy-names = "dpphy";
            interrupts = <GIC_SPI 614 IRQ_TYPE_LEVEL_HIGH>;

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

                port@0 {
                    reg = <0>;
                    dp_bridge_input: endpoint {
                        remote-endpoint = <&xxx_dpi_output>;
                    };
                };

                port@4 {
                    reg = <4>;
                    dp_bridge_output: endpoint {
                        remote-endpoint = <&xxx_dp_connector_input>;
                    };
                };
            };
        };
    };
...