renesas,wdt.yaml

  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
 13properties:
 14  compatible:
 15    oneOf:
 16      - items:
 17          - enum:
 18              - renesas,r8a7742-wdt      # RZ/G1H
 19              - renesas,r8a7743-wdt      # RZ/G1M
 20              - renesas,r8a7744-wdt      # RZ/G1N
 21              - renesas,r8a7745-wdt      # RZ/G1E
 22              - renesas,r8a77470-wdt     # RZ/G1C
 23              - renesas,r8a7790-wdt      # R-Car H2
 24              - renesas,r8a7791-wdt      # R-Car M2-W
 25              - renesas,r8a7792-wdt      # R-Car V2H
 26              - renesas,r8a7793-wdt      # R-Car M2-N
 27              - renesas,r8a7794-wdt      # R-Car E2
 28          - const: renesas,rcar-gen2-wdt # R-Car Gen2 and RZ/G1
 29
 30      - items:
 31          - enum:
 32              - renesas,r8a774a1-wdt     # RZ/G2M
 33              - renesas,r8a774b1-wdt     # RZ/G2N
 34              - renesas,r8a774c0-wdt     # RZ/G2E
 35              - renesas,r8a774e1-wdt     # RZ/G2H
 36              - renesas,r8a7795-wdt      # R-Car H3
 37              - renesas,r8a7796-wdt      # R-Car M3-W
 38              - renesas,r8a77961-wdt     # R-Car M3-W+
 39              - renesas,r8a77965-wdt     # R-Car M3-N
 40              - renesas,r8a77970-wdt     # R-Car V3M
 41              - renesas,r8a77980-wdt     # R-Car V3H
 42              - renesas,r8a77990-wdt     # R-Car E3
 43              - renesas,r8a77995-wdt     # R-Car D3
 44          - const: renesas,rcar-gen3-wdt # R-Car Gen3 and RZ/G2
 45
 46      - items:
 47          - enum:
 48              - renesas,r8a779a0-wdt     # R-Car V3U
 49              - renesas,r8a779f0-wdt     # R-Car S4-8
 50              - renesas,r8a779g0-wdt     # R-Car V4H
 51              - renesas,r8a779h0-wdt     # R-Car V4M
 52          - const: renesas,rcar-gen4-wdt # R-Car Gen4
 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  - interrupts
 76  - power-domains
 77
 78allOf:
 79  - $ref: watchdog.yaml#
 80
 81  - if:
 82      not:
 83        properties:
 84          compatible:
 85            contains:
 86              const: renesas,r8a77980-wdt
 87    then:
 88      required:
 89        - resets
 90
 91additionalProperties: false
 92
 93examples:
 94  - |
 95    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
 96    #include <dt-bindings/power/r8a7795-sysc.h>
 97    #include <dt-bindings/interrupt-controller/arm-gic.h>
 98    wdt0: watchdog@e6020000 {
 99        compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt";
100        reg = <0xe6020000 0x0c>;
101        interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
102        clocks = <&cpg CPG_MOD 402>;
103        power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
104        resets = <&cpg 402>;
105        timeout-sec = <60>;
106    };