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

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml
Extension: .yaml
Size: 3139 bytes
Lines: 129
Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: configuration, schema, or hardware description
Status: atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

dt-bindings/interrupt-controller/arm-gic.h
dt-bindings/clock/imx6qdl-clock.h

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# 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:
  - Shawn Guo <shawnguo@kernel.org>
  - Sascha Hauer <s.hauer@pengutronix.de>
  - Fabio Estevam <festevam@gmail.com>

properties:
  compatible:
    oneOf:
      - const: fsl,imx21-wdt
      - items:
          - enum:
              - fsl,imx25-wdt
              - fsl,imx27-wdt
              - fsl,imx31-wdt
              - fsl,imx35-wdt
              - fsl,imx50-wdt
              - fsl,imx51-wdt
              - fsl,imx53-wdt
              - fsl,imx6q-wdt
              - fsl,imx6sl-wdt
              - fsl,imx6sll-wdt
              - fsl,imx6sx-wdt
              - fsl,imx6ul-wdt
              - fsl,imx7d-wdt
              - fsl,imx8mm-wdt
              - fsl,imx8mn-wdt
              - fsl,imx8mp-wdt
              - fsl,imx8mq-wdt
              - fsl,ls1012a-wdt
              - fsl,ls1021a-wdt
              - fsl,ls1043a-wdt
              - fsl,ls1046a-wdt
              - fsl,vf610-wdt
          - const: fsl,imx21-wdt

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  big-endian: true

  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.

  fsl,suspend-in-wait:
    $ref: /schemas/types.yaml#/definitions/flag
    description: |
      If present, the watchdog device is suspended in WAIT mode
      (Suspend-to-Idle). Only supported on certain devices.

required:
  - compatible
  - interrupts
  - reg

Annotation

Immediate include surface: `dt-bindings/interrupt-controller/arm-gic.h`, `dt-bindings/clock/imx6qdl-clock.h`.
Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.