Documentation/devicetree/bindings/watchdog/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
   7 title: Renesas Watchdog Timer (WDT) Controller
   8
   9 maintainers:
  10   - Wolfram Sang <wsa+renesas@sang-engineering.com>
  11   - Geert Uytterhoeven <geert+renesas@glider.be>
  12
  13 allOf:
  14   - $ref: "watchdog.yaml#"
  15
  16 properties:
  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,r8a774e1-wdt     # RZ/G2H
  45               - renesas,r8a7795-wdt      # R-Car H3
  46               - renesas,r8a7796-wdt      # R-Car M3-W
  47               - renesas,r8a77961-wdt     # R-Car M3-W+
  48               - renesas,r8a77965-wdt     # R-Car M3-N
  49               - renesas,r8a77970-wdt     # R-Car V3M
  50               - renesas,r8a77980-wdt     # R-Car V3H
  51               - renesas,r8a77990-wdt     # R-Car E3
  52               - renesas,r8a77995-wdt     # R-Car D3
  53           - const: renesas,rcar-gen3-wdt # R-Car Gen3 and RZ/G2
  54
  55   reg:
  56     maxItems: 1
  57
  58   interrupts:
  59     maxItems: 1
  60
  61   clocks:
  62     maxItems: 1
  63
  64   power-domains:
  65     maxItems: 1
  66
  67   resets:
  68     maxItems: 1
  69
  70   timeout-sec: true
  71
  72 required:
  73   - compatible
  74   - reg
  75   - clocks
  76
  77 if:
  78   not:
  79     properties:
  80       compatible:
  81         contains:
  82           enum:
  83             - renesas,rza-wdt
  84 then:
  85   required:
  86     - power-domains
  87     - resets
  88
  89 additionalProperties: false
  90
  91 examples:
  92   - |
  93     #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
  94     #include <dt-bindings/power/r8a7795-sysc.h>
  95     wdt0: watchdog@e6020000 {
  96             compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt";
  97             reg = <0xe6020000 0x0c>;
  98             clocks = <&cpg CPG_MOD 402>;
  99             power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
 100             resets = <&cpg 402>;
 101             timeout-sec = <60>;
 102     };