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
8
9 maintainers:
10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org>
12
13 allOf:
14 - $ref: watchdog.yaml#
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 items:
68 - description: High-frequency oscillator input, divided internally
69 - description: Low-frequency oscillator input
70
71 clock-names:
72 items:
73 - const: hosc
74 - const: losc
75
76 required:
77 - clock-names
78
79 else:
80 properties:
81 clocks:
82 maxItems: 1
83
84 unevaluatedProperties: false
85
86 examples:
87 - |
88 wdt: watchdog@1c20c90 {
89 compatible = "allwinner,sun4i-a10-wdt";
90 reg = <0x01c20c90 0x10>;
91 interrupts = <24>;
92 clocks = <&osc24M>;
93 timeout-sec = <10>;
94 };
95
96 ...
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