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List:       linux-omap
Subject:    Noise causes gpio interrupt  (Arnold)
From:       e-saint-etienne () ti ! com (Saint-Etienne, Eric)
Date:       2007-01-30 2:31:18
Message-ID: 0AB0CB5257FF3C43A27E201CC8AADA8602E4B1AC () dnce02 ! ent ! ti ! com
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> I am working on omap5912 and I am using linux 2.6.17.
> I am using a gpio to handle interrupts. I believe that
> I am having a noise interrupt which my firmware thinks
> is a really interrupt. Is there a way to distinguish a
> noise interrupt from a real interrupt?

It looks like you have a floating input. On omap2 it's possible to
enable a pull-down on the pad. This is done using System Control Module
(see TRM).
There may be an equivalent on omap5912.

~eric

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