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,r8a7743-wdt      # RZ/G1M
28              - renesas,r8a7744-wdt      # RZ/G1N
29              - renesas,r8a7745-wdt      # RZ/G1E
30              - renesas,r8a77470-wdt     # RZ/G1C
31              - renesas,r8a7790-wdt      # R-Car H2
32              - renesas,r8a7791-wdt      # R-Car M2-W
33              - renesas,r8a7792-wdt      # R-Car V2H
34              - renesas,r8a7793-wdt      # R-Car M2-N
35              - renesas,r8a7794-wdt      # R-Car E2
36          - const: renesas,rcar-gen2-wdt # R-Car Gen2 and RZ/G1
37
38      - items:
39          - enum:
40              - renesas,r8a774a1-wdt     # RZ/G2M
41              - renesas,r8a774b1-wdt     # RZ/G2N
42              - renesas,r8a774c0-wdt     # RZ/G2E
43              - renesas,r8a7795-wdt      # R-Car H3
44              - renesas,r8a7796-wdt      # R-Car M3-W
45              - renesas,r8a77961-wdt     # R-Car M3-W+
46              - renesas,r8a77965-wdt     # R-Car M3-N
47              - renesas,r8a77970-wdt     # R-Car V3M
48              - renesas,r8a77980-wdt     # R-Car V3H
49              - renesas,r8a77990-wdt     # R-Car E3
50              - renesas,r8a77995-wdt     # R-Car D3
51          - const: renesas,rcar-gen3-wdt # R-Car Gen3 and RZ/G2
52
53  reg:
54    maxItems: 1
55
56  interrupts:
57    maxItems: 1
58
59  clocks:
60    maxItems: 1
61
62  power-domains:
63    maxItems: 1
64
65  resets:
66    maxItems: 1
67
68  timeout-sec: true
69
70required:
71  - compatible
72  - reg
73  - clocks
74
75if:
76  not:
77    properties:
78      compatible:
79        contains:
80          enum:
81            - renesas,rza-wdt
82then:
83  required:
84    - power-domains
85    - resets
86
87additionalProperties: false
88
89examples:
90  - |
91    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
92    #include <dt-bindings/power/r8a7795-sysc.h>
93    wdt0: watchdog@e6020000 {
94            compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt";
95            reg = <0xe6020000 0x0c>;
96            clocks = <&cpg CPG_MOD 402>;
97            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
98            resets = <&cpg 402>;
99            timeout-sec = <60>;
100    };
101