Hi Grant! Am 12.11.09 20:06 schrieb(en) Grant Likely:
> +The watchdog will respect the CONFIG_WATCHDOG_NOWAYOUT option.I think it would be better to use a device tree property to enable up NOWAYOUT. The static config isn't multiplatform-friendly. Thoughts?
I fully agree with you that this property would fit perfectly in the device tree. However, if we now add it *only* for the 52xx, but not for other device tree-aware platforms, this might be somewhat confusing. The good thing is that it wouldn't break anything for the 5200 as the old wdt driver didn't work anyway.
One *real* advantage of the compile-time option is that it actually removes the code which stops the wdt. I'm not a real expert in that, but if we argue that the system is "safe" as required by IEC/EN 61508 part 3, it's probably beneficial if we can show that there *is* no code to stop the wdt, not a snipplet only disabled by a flag.
Just my €0.01, though - maybe more insight from the WDT gurus? Cheers, Albrecht.
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