Fu Wei wrote:

Actually,
the SBSA watchdog driver should support only  half-timeout for panic
the user cannot configure the length of "panic time",  He can only
enable it, and it is automatically set to 1/2 timeout.

we don't need pre-timeout here.

Hope I understand you correctly:-)  sorry for your confusion

quoted

quoted

So when pre-timeout occurs, the interrupt handler calls panic() or whatever
it's supposed to do.

Actually,
So when 1/2 timeout occurs, the interrupt handler calls panic() or
whatever it's supposed to do.

I understand all that.  What I'm saying is that, in the future, when 
pre-timeout support is added to the watchdog layer, I think it makes 
sense to modify this driver to use pre-timeout support.