linux-kernel - Re: [PATCH 2/3 V2] gpio: add STMPE811 gpio controller support

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Message-ID: <20100614121349.GC14604@rakim.wolfsonmicro.main>
Date:	Mon, 14 Jun 2010 13:13:49 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Luotao Fu <l.fu@...gutronix.de>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3 V2] gpio: add STMPE811 gpio controller support

On Mon, Jun 14, 2010 at 02:09:43PM +0200, Luotao Fu wrote:
> On Mon, Jun 14, 2010 at 12:51:23PM +0100, Mark Brown wrote:

> > Assuming you're able to do interrupts on the GPIOs you should now be
> > able to implement to_irq() as well.

> The chip can indeed generate irqs on the GPIO line. I, however, kept out
> the irq stuff for now because i want to get the core functionalies done
> for this turn. I'd like to add the irq stuff with a separate patch later.

It should be a trivial function - it just does a mapping from a GPIO
number to an IRQ number.
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