Documentation/devicetree/bindings/watchdog/men-a021-wdt.txt
Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/watchdog/men-a021-wdt.txt
File Facts
- System
- Linux kernel
- Corpus path
Documentation/devicetree/bindings/watchdog/men-a021-wdt.txt- Extension
.txt- Size
- 624 bytes
- Lines
- 26
- Domain
- Support Tooling And Documentation
- Bucket
- Documentation
- Inferred role
- Support Tooling And Documentation: documentation
- 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
Bindings for MEN A21 Watchdog device connected to GPIO lines
Required properties:
- compatible: "men,a021-wdt"
- gpios: Specifies the pins that control the Watchdog, order:
1: Watchdog enable
2: Watchdog fast-mode
3: Watchdog trigger
4: Watchdog reset cause bit 0
5: Watchdog reset cause bit 1
6: Watchdog reset cause bit 2
Optional properties:
- None
Example:
watchdog {
compatible ="men,a021-wdt";
gpios = <&gpio3 9 1 /* WD_EN */
&gpio3 10 1 /* WD_FAST */
&gpio3 11 1 /* WD_TRIG */
&gpio3 6 1 /* RST_CAUSE[0] */
&gpio3 7 1 /* RST_CAUSE[1] */
&gpio3 8 1>; /* RST_CAUSE[2] */
};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.