Documentation/devicetree/bindings/watchdog/snps,dw-wdt.yaml

File Facts

System

Linux kernel

Corpus path

Documentation/devicetree/bindings/watchdog/snps,dw-wdt.yaml

Extension

.yaml

Size

3227 bytes

Lines

114

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

• No C-style include directives detected by the generator.

Detected Declarations

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

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0-only
%YAML 1.2
---
$id: http://devicetree.org/schemas/watchdog/snps,dw-wdt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Synopsys Designware Watchdog Timer

maintainers:
  - Jamie Iles <jamie@jamieiles.com>

allOf:
  - $ref: watchdog.yaml#

properties:
  compatible:
    oneOf:
      - const: snps,dw-wdt
      - items:
          - enum:
              - rockchip,px30-wdt
              - rockchip,rk3066-wdt
              - rockchip,rk3128-wdt
              - rockchip,rk3188-wdt
              - rockchip,rk3228-wdt
              - rockchip,rk3288-wdt
              - rockchip,rk3308-wdt
              - rockchip,rk3328-wdt
              - rockchip,rk3368-wdt
              - rockchip,rk3399-wdt
              - rockchip,rk3506-wdt
              - rockchip,rk3528-wdt
              - rockchip,rk3562-wdt
              - rockchip,rk3568-wdt
              - rockchip,rk3576-wdt
              - rockchip,rk3588-wdt
              - rockchip,rv1103b-wdt
              - rockchip,rv1108-wdt
              - rockchip,rv1126-wdt
          - const: snps,dw-wdt

  reg:
    maxItems: 1

  interrupts:
    description: DW Watchdog pre-timeout interrupt
    maxItems: 1

  clocks:
    minItems: 1
    items:
      - description: Watchdog timer reference clock
      - description: APB3 interface clock

  clock-names:
    minItems: 1
    items:
      - const: tclk
      - const: pclk

  resets:
    description: Phandle to the DW Watchdog reset lane
    maxItems: 1

  snps,watchdog-tops:
    $ref: /schemas/types.yaml#/definitions/uint32-array
    description: |
      DW APB Watchdog custom timer intervals - Timeout Period ranges (TOPs).
      Each TOP is a number loaded into the watchdog counter at the moment of
      the timer restart. The counter decrementing happens each tick of the

Annotation

• 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.