Re: TWL4030 keypad timeout interrupt

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On Tue, 13 May 2008 16:54:17 +0300, Felipe Balbi <felipe.balbi@xxxxxxxxx>
wrote:
> Hi all,
> 
> I noted whenever we release a key in omap-twl4030.c driver it generates
> two interrupts: one for release event and one for a timeout event.
> 
> Is that expected or is that a bug somewhere in the driver ?
> 
> It's easily noted by cat /proc/interrupts ;-)

Replying to myself as I found some more clues.

By checking the code I could see that only rising edge of
timeout interrupt is being enabled. Also timeout register
is at 0xd6, but code is writing 0x04...

So if i read it correctly, we might have 0 set as our timeout.

which might explain why we only see the timeout interrupt
when releasing the key.

Am I right ?

I might be completely wrong here, but that extra interrupt
happening all the time is just bugging me :-p

-- 
Best Regards,

Felipe Balbi
http://felipebalbi.com
me@xxxxxxxxxxxxxxx

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