From: jamie@jamieiles.com (Jamie Iles)
To: linux-arm-kernel@lists.infradead.org
Subject: GPIO matrix and button with single edge IRQ
Date: Wed, 4 Jan 2012 17:49:37 +0000 [thread overview]
Message-ID: <20120104174937.GA3104@page> (raw)
In-Reply-To: <CAHEb4-8Xo=w5GuYQzP8X3h_HW8yHG89T+oGRfZJNa652St=YnA@mail.gmail.com>
Hi Marc,
On Wed, Jan 04, 2012 at 07:54:06AM -0500, Marc-Andr? H?bert wrote:
> We are developing an i.MX283 custom board. We have a small keypad
> matrix and some gpio buttons. After setting up the necessary platform
> data, I realized when debugging that it couldn't work because the GPIO
> controller does not support dual edge triggers like requested in both
Does the GPIO controller support both edge types but not at the same
time? LinusW pointed out to me that a couple of other controllers have
this restriction but you can work around it in the controller driver:
http://www.spinics.net/lists/arm-kernel/msg152526.html
Jamie
prev parent reply other threads:[~2012-01-04 17:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-04 12:54 GPIO matrix and button with single edge IRQ Marc-André Hébert
2012-01-04 17:49 ` Jamie Iles [this message]
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