Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/watchdog/fsl-imx-wdt.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Freescale i.MX Watchdog Timer (WDT) Controller
   8
   9 maintainers:
  10   - Anson Huang <Anson.Huang@nxp.com>
  11
  12 allOf:
  13   - $ref: "watchdog.yaml#"
  14
  15 properties:
  16   compatible:
  17     oneOf:
  18       - const: fsl,imx21-wdt
  19       - items:
  20           - enum:
  21               - fsl,imx8mm-wdt
  22               - fsl,imx8mn-wdt
  23               - fsl,imx8mp-wdt
  24               - fsl,imx8mq-wdt
  25           - const: fsl,imx21-wdt
  26
  27   reg:
  28     maxItems: 1
  29
  30   interrupts:
  31     maxItems: 1
  32
  33   clocks:
  34     maxItems: 1
  35
  36   fsl,ext-reset-output:
  37     $ref: /schemas/types.yaml#/definitions/flag
  38     description: |
  39       If present, the watchdog device is configured to assert its
  40       external reset (WDOG_B) instead of issuing a software reset.
  41
  42 required:
  43   - compatible
  44   - interrupts
  45   - reg
  46
  47 unevaluatedProperties: false
  48
  49 examples:
  50   - |
  51     #include <dt-bindings/interrupt-controller/arm-gic.h>
  52     #include <dt-bindings/clock/imx6qdl-clock.h>
  53
  54     watchdog@20bc000 {
  55         compatible = "fsl,imx21-wdt";
  56         reg = <0x020bc000 0x4000>;
  57         interrupts = <0 80 IRQ_TYPE_LEVEL_HIGH>;
  58         clocks = <&clks IMX6QDL_CLK_IPG>;
  59     };
  60
  61 ...