andy git 06/15 suspend/resume observations

[Andy Green]

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Somebody in the thread at some point said:

| Oops... just locked up with ping working.

OK, we didn't make it any worse and the ordering needed fixing anyway.
What do we believe then:

~ - Ping after failure --> Not globally fatal panic

~ - Userspace didn't come up --> still in resume phase

~ - Problem-free with GSM down --> likely GSM resume action dies, but
could be something downstream of it in time... doesn't make it out of
resume though.  Close to GSM resume.

~ - Needs delay before resume to trigger -->  Waiting on GSM unit to
decide to make the wake before it can go wrong

Some deadlock would fit well, something spinning for some reason, I
wonder what happens if we blow a NULL pointer exception at that time, a
full panic or the kind of "I just killed that driver" thing that happens
in normal Linux?

I'd also like to know what happens if I force IO1 net asserted
(interrupt from GSM side) using "super paperclip power" but a testpoint
there was only added on A6 and I only have A5s.

- -Andy

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