Re: sharp c-3000 aka spitz: fix warn_on introduced in 2.6.32-rc1

[Pavel Machek]

Hi!

> >> > Sharp-SL code uses strange, complex grouping of gpios for wakeups
> >> > toggling. Fortunately, it is unneeded in recent kernels (and actually
> >> > provokes WARN_ONs during resume). Remove it.
> >> >
> >> > Signed-off-by: Pavel Machek <pavel@xxxxxx>
> >>
> >> Pavel,
> >>
> >> The code to be removed below is used to support pxa27x_keypad
> >> to be able to resume from sleep. What's the exact reason to remove
> >> this on spitz?
> >
> > Well, otherwise I get this during resume: (2.6.32 regression)
> >
> > (and similar for matrix-keypad, but dmitry worked around that
> > already).
> >
> > Problem is that gpio-keys and matrix-keypad want to set_wake for each
> > gpio individually, hw can do that, but pxa27x.c breaks it.
> >
> > I don't get it; what is pxa27x_keypad used on? It looks like
> > matrix-keypad subset.
> 
> pxa27x has its own specific keypad controller. And since we now
> use enable_irq_wake, and the keypad controller has only one
> such IRQ_KEYPAD, will have to setup the keypad GPIO wakeup
> as a whole.

But pxa27x keypad controlled is not used on spitz, right? So why do we
break spitz by tying GPIO wakeup settings together?
									Pavel

-- 
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