Re: [PATCH V2] matrix_keypad: add support for clustered irq

From: Dmitry Torokhov
Date: Mon Jun 14 2010 - 23:15:51 EST

On Thursday, May 27, 2010 08:14:50 am Eric Miao wrote:
> On Thu, May 27, 2010 at 2:43 PM, Luotao Fu <l.fu@xxxxxxxxxxxxxx> wrote:
> > This one adds support of a combined irq source for the whole matrix keypad.
> > This can be useful if all rows and columns of the keypad are e.g. connected
> > to a GPIO expander, which only has one interrupt line for all events on
> > every single GPIO.
> >
> > Signed-off-by: Luotao Fu <l.fu@xxxxxxxxxxxxxx>
> I feel OK. Acked-by: Eric Miao <eric.y.miao@xxxxxxxxx>
> > ---
> > V2 Changes:
> > * create separate functions for suspend/resume calls.
> > * add bool flag to signal enable/disable state of all gpios.
> > * add spinlock to suspend and resume callbacks.

The spinlock is not needed, it should be OK to get interrupted in the middle
of setting up wakeup sources. The enable/disable irq is different as if we
get interrupted in the middle of the process our counters will get messed

Fixed a few compile warnings and applied for .36.


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