summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml
blob: 991b4e33486ed72ab0ae52aa2db65f30f7299558 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/watchdog/fsl-imx-wdt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Freescale i.MX Watchdog Timer (WDT) Controller

maintainers:
  - Anson Huang <Anson.Huang@nxp.com>

allOf:
  - $ref: "watchdog.yaml#"

properties:
  compatible:
    oneOf:
      - const: fsl,imx21-wdt
      - items:
          - enum:
              - fsl,imx8mm-wdt
              - fsl,imx8mn-wdt
              - fsl,imx8mp-wdt
              - fsl,imx8mq-wdt
          - const: fsl,imx21-wdt

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  fsl,ext-reset-output:
    $ref: /schemas/types.yaml#/definitions/flag
    description: |
      If present, the watchdog device is configured to assert its
      external reset (WDOG_B) instead of issuing a software reset.

required:
  - compatible
  - interrupts
  - reg

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/clock/imx6qdl-clock.h>

    watchdog@20bc000 {
        compatible = "fsl,imx21-wdt";
        reg = <0x020bc000 0x4000>;
        interrupts = <0 80 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&clks IMX6QDL_CLK_IPG>;
    };

...