xref: /linux/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.yaml (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/watchdog/st,stm32-iwdg.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: STMicroelectronics STM32 Independent WatchDoG (IWDG)
8
9maintainers:
10  - Yannick Fertre <yannick.fertre@foss.st.com>
11  - Christophe Roullier <christophe.roullier@foss.st.com>
12
13allOf:
14  - $ref: watchdog.yaml#
15
16properties:
17  compatible:
18    enum:
19      - st,stm32-iwdg
20      - st,stm32mp1-iwdg
21
22  reg:
23    maxItems: 1
24
25  clocks:
26    items:
27      - description: Low speed clock
28      - description: Optional peripheral clock
29    minItems: 1
30
31  clock-names:
32    items:
33      enum:
34        - lsi
35        - pclk
36    minItems: 1
37    maxItems: 2
38
39  interrupts:
40    maxItems: 1
41    description: Pre-timeout interrupt from the watchdog.
42
43  wakeup-source: true
44
45required:
46  - compatible
47  - reg
48  - clocks
49  - clock-names
50
51unevaluatedProperties: false
52
53examples:
54  - |
55    #include <dt-bindings/clock/stm32mp1-clks.h>
56    watchdog@5a002000 {
57        compatible = "st,stm32mp1-iwdg";
58        reg = <0x5a002000 0x400>;
59        clocks = <&rcc IWDG2>, <&rcc CK_LSI>;
60        clock-names = "pclk", "lsi";
61        timeout-sec = <32>;
62    };
63
64...
65