aboutsummaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml
blob: 91a98ccd4226f5051a91ca6fdcde6e0ee56ca2d7 (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
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/watchdog/renesas,wdt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas Watchdog Timer (WDT) Controller

maintainers:
  - Wolfram Sang <wsa+renesas@sang-engineering.com>
  - Geert Uytterhoeven <geert+renesas@glider.be>

properties:
  compatible:
    oneOf:
      - items:
          - enum:
              - renesas,r7s72100-wdt     # RZ/A1
              - renesas,r7s9210-wdt      # RZ/A2
          - const: renesas,rza-wdt       # RZ/A

      - items:
          - enum:
              - renesas,r9a07g044-wdt    # RZ/G2{L,LC}
          - const: renesas,rzg2l-wdt     # RZ/G2L

      - items:
          - enum:
              - renesas,r8a7742-wdt      # RZ/G1H
              - renesas,r8a7743-wdt      # RZ/G1M
              - renesas,r8a7744-wdt      # RZ/G1N
              - renesas,r8a7745-wdt      # RZ/G1E
              - renesas,r8a77470-wdt     # RZ/G1C
              - renesas,r8a7790-wdt      # R-Car H2
              - renesas,r8a7791-wdt      # R-Car M2-W
              - renesas,r8a7792-wdt      # R-Car V2H
              - renesas,r8a7793-wdt      # R-Car M2-N
              - renesas,r8a7794-wdt      # R-Car E2
          - const: renesas,rcar-gen2-wdt # R-Car Gen2 and RZ/G1

      - items:
          - enum:
              - renesas,r8a774a1-wdt     # RZ/G2M
              - renesas,r8a774b1-wdt     # RZ/G2N
              - renesas,r8a774c0-wdt     # RZ/G2E
              - renesas,r8a774e1-wdt     # RZ/G2H
              - renesas,r8a7795-wdt      # R-Car H3
              - renesas,r8a7796-wdt      # R-Car M3-W
              - renesas,r8a77961-wdt     # R-Car M3-W+
              - renesas,r8a77965-wdt     # R-Car M3-N
              - renesas,r8a77970-wdt     # R-Car V3M
              - renesas,r8a77980-wdt     # R-Car V3H
              - renesas,r8a77990-wdt     # R-Car E3
              - renesas,r8a77995-wdt     # R-Car D3
              - renesas,r8a779a0-wdt     # R-Car V3U
          - const: renesas,rcar-gen3-wdt # R-Car Gen3 and RZ/G2

  reg:
    maxItems: 1

  interrupts: true

  interrupt-names: true

  clocks: true

  clock-names: true

  power-domains:
    maxItems: 1

  resets:
    maxItems: 1

  timeout-sec: true

required:
  - compatible
  - reg
  - clocks

allOf:
  - $ref: "watchdog.yaml#"

  - if:
      not:
        properties:
          compatible:
            contains:
              enum:
                - renesas,rza-wdt
    then:
      required:
        - power-domains
        - resets

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,rzg2l-wdt
    then:
      properties:
        interrupts:
          maxItems: 2
        interrupt-names:
          items:
            - const: wdt
            - const: perrout
        clocks:
          items:
            - description: Register access clock
            - description: Main clock
        clock-names:
          items:
            - const: pclk
            - const: oscclk
      required:
        - clock-names
        - interrupt-names
    else:
      properties:
        interrupts:
          maxItems: 1
        clocks:
          maxItems: 1

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
    #include <dt-bindings/power/r8a7795-sysc.h>
    wdt0: watchdog@e6020000 {
            compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt";
            reg = <0xe6020000 0x0c>;
            clocks = <&cpg CPG_MOD 402>;
            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
            resets = <&cpg 402>;
            timeout-sec = <60>;
    };