Bug 217374

Summary:	bcm2835-wdt: attempting to set the timer to 30 seconds returns EINVAL
Product:	Drivers	Reporter:	K900 (me)
Component:	Watchdog	Assignee:	drivers_watchdog (drivers_watchdog)
Status:	NEW ---
Severity:	normal	CC:	me
Priority:	P3
Hardware:	All
OS:	Linux
Kernel Version:		Subsystem:
Regression:	No	Bisected commit-id:

Description K900 2023-04-27 09:04:07 UTC

It looks like the hardware can only handle timeouts of 15 seconds or less, but according to https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html#setting-and-getting-the-timeout, the correct behavior when provided an incompatible value is to set the closest compatible one and return that.

Originally filed as a a systemd bug: https://github.com/systemd/systemd/issues/27427