1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/watchdog/renesas,wdt.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Renesas Watchdog Timer (WDT) Controller
8
9maintainers:
10  - Wolfram Sang <wsa+renesas@sang-engineering.com>
11  - Geert Uytterhoeven <geert+renesas@glider.be>
12
13allOf:
14  - $ref: "watchdog.yaml#"
15
16properties:
17  compatible:
18    oneOf:
19      - items:
20          - enum:
21              - renesas,r7s72100-wdt     # RZ/A1
22              - renesas,r7s9210-wdt      # RZ/A2
23          - const: renesas,rza-wdt       # RZ/A
24
25      - items:
26          - enum:
27              - renesas,r8a7742-wdt      # RZ/G1H
28              - renesas,r8a7743-wdt      # RZ/G1M
29              - renesas,r8a7744-wdt      # RZ/G1N
30              - renesas,r8a7745-wdt      # RZ/G1E
31              - renesas,r8a77470-wdt     # RZ/G1C
32              - renesas,r8a7790-wdt      # R-Car H2
33              - renesas,r8a7791-wdt      # R-Car M2-W
34              - renesas,r8a7792-wdt      # R-Car V2H
35              - renesas,r8a7793-wdt      # R-Car M2-N
36              - renesas,r8a7794-wdt      # R-Car E2
37          - const: renesas,rcar-gen2-wdt # R-Car Gen2 and RZ/G1
38
39      - items:
40          - enum:
41              - renesas,r8a774a1-wdt     # RZ/G2M
42              - renesas,r8a774b1-wdt     # RZ/G2N
43              - renesas,r8a774c0-wdt     # RZ/G2E
44              - renesas,r8a7795-wdt      # R-Car H3
45              - renesas,r8a7796-wdt      # R-Car M3-W
46              - renesas,r8a77961-wdt     # R-Car M3-W+
47              - renesas,r8a77965-wdt     # R-Car M3-N
48              - renesas,r8a77970-wdt     # R-Car V3M
49              - renesas,r8a77980-wdt     # R-Car V3H
50              - renesas,r8a77990-wdt     # R-Car E3
51              - renesas,r8a77995-wdt     # R-Car D3
52          - const: renesas,rcar-gen3-wdt # R-Car Gen3 and RZ/G2
53
54  reg:
55    maxItems: 1
56
57  interrupts:
58    maxItems: 1
59
60  clocks:
61    maxItems: 1
62
63  power-domains:
64    maxItems: 1
65
66  resets:
67    maxItems: 1
68
69  timeout-sec: true
70
71required:
72  - compatible
73  - reg
74  - clocks
75
76if:
77  not:
78    properties:
79      compatible:
80        contains:
81          enum:
82            - renesas,rza-wdt
83then:
84  required:
85    - power-domains
86    - resets
87
88additionalProperties: false
89
90examples:
91  - |
92    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
93    #include <dt-bindings/power/r8a7795-sysc.h>
94    wdt0: watchdog@e6020000 {
95            compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt";
96            reg = <0xe6020000 0x0c>;
97            clocks = <&cpg CPG_MOD 402>;
98            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
99            resets = <&cpg 402>;
100            timeout-sec = <60>;
101    };
102