32-rc1 aka 32-rc2: warning at manage.c:361 (set_irq_wake), matrix-keypad related?
pavel at ucw.cz
Wed Oct 7 17:12:26 EDT 2009
> > > OK, so it looks like your box refuses to set up one of the GPIOs as a
> > > wakeup source... Hmm, either your box is wrong ;) or matrix_keypad
> > > driver needs to maintain a separate list of wakeup GPIOs.
> > >
> > This is due to the nature of PXA processor, where not every GPIO can
> > be configured as a wakeup source. Mmm.... we can either return a
> > pseudo value indicating setting wakeup on that GPIO is OK (which
> > doesn't sound like a good idea), or we can just ignore the failure of
> > enable_irq_wake() in matrix_keypad?
> We ignore the failure right now in the mainline but that causes stack
> traces on resume as we trying to disable not enabled wakeup GPIOs. That
> was original Pavel's complaint.
I'd say that BUG() simply should not trigger if wakeup can not be
enabled/disabled for particular source...?
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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