Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/watchdog/allwinner,sun4i-a10-wdt.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Allwinner A10 Watchdog Device Tree Bindings
   8
   9 allOf:
  10   - $ref: "watchdog.yaml#"
  11
  12 maintainers:
  13   - Chen-Yu Tsai <wens@csie.org>
  14   - Maxime Ripard <mripard@kernel.org>
  15
  16 properties:
  17   compatible:
  18     oneOf:
  19       - const: allwinner,sun4i-a10-wdt
  20       - const: allwinner,sun6i-a31-wdt
  21       - items:
  22           - enum:
  23               - allwinner,sun50i-a64-wdt
  24               - allwinner,sun50i-a100-wdt
  25               - allwinner,sun50i-h6-wdt
  26               - allwinner,sun50i-h616-wdt
  27               - allwinner,sun50i-r329-wdt
  28               - allwinner,sun50i-r329-wdt-reset
  29               - allwinner,suniv-f1c100s-wdt
  30           - const: allwinner,sun6i-a31-wdt
  31       - const: allwinner,sun20i-d1-wdt
  32       - items:
  33           - const: allwinner,sun20i-d1-wdt-reset
  34           - const: allwinner,sun20i-d1-wdt
  35
  36   reg:
  37     maxItems: 1
  38
  39   clocks:
  40     minItems: 1
  41     items:
  42       - description: 32 KHz input clock
  43       - description: secondary clock source
  44
  45   interrupts:
  46     maxItems: 1
  47
  48 required:
  49   - compatible
  50   - reg
  51   - clocks
  52   - interrupts
  53
  54 if:
  55   properties:
  56     compatible:
  57       contains:
  58         enum:
  59           - allwinner,sun20i-d1-wdt
  60           - allwinner,sun20i-d1-wdt-reset
  61           - allwinner,sun50i-r329-wdt
  62           - allwinner,sun50i-r329-wdt-reset
  63
  64 then:
  65   properties:
  66     clocks:
  67       minItems: 2
  68       items:
  69         - description: High-frequency oscillator input, divided internally
  70         - description: Low-frequency oscillator input
  71
  72     clock-names:
  73       items:
  74         - const: hosc
  75         - const: losc
  76
  77   required:
  78     - clock-names
  79
  80 else:
  81   properties:
  82     clocks:
  83       maxItems: 1
  84
  85 unevaluatedProperties: false
  86
  87 examples:
  88   - |
  89     wdt: watchdog@1c20c90 {
  90         compatible = "allwinner,sun4i-a10-wdt";
  91         reg = <0x01c20c90 0x10>;
  92         interrupts = <24>;
  93         clocks = <&osc24M>;
  94         timeout-sec = <10>;
  95     };
  96
  97 ...