[PATCH 1/2] I2C: Convert PCF50606 to I2C device

[Werner Almesberger]

Andy Green wrote:
> But the Glamo is dead at that point,

So you can't even dump its registers ? Okay, that would limit the
usefulness of such a debug interrupt.

> fundamentally a sign it was broken either by the suspend actions on it
> or the resume attempt on it.

Do you think much time passes between making whatever error causes
the hang and the moment the chip hangs for real ? If not, the stack
trace from the AUX-dump handler might reveal where it happened.

- Werner