Re: [PATCH] Input: tca8418 - Add support for shared interrupt

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On Tue, Nov 06, 2012 at 05:34:30PM +0100, Alban Bedel wrote:
> On Mon, 5 Nov 2012 10:58:06 -0800
> Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> wrote:
> 
> > I do not think that using ONESHOT IRQ handlers in shared interrupt
> > configuration is a good idea as that interrupt will stay masked until
> > the keypad is done processing it, which may take some time.
> 
> I don't really see what the problem is, shared ONESHOT handlers are
> supported by the IRQ framework. The IRQ line of this device is an open
> drain and so can be shared, and is shared on the hardware I'm using!
> 
> I agree that the interrupt masking time might rise a little if many
> devices share the same line, but that's the normal drawback of shared
> interrupts.

OK, fair enough.

-- 
Dmitry
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