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Date: Mon, 2 Nov 2009 11:51:01 +0000
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Uwe Kleine-K??nig <u.kleine-koenig@pengutronix.de>
Cc: linux-kernel@vger.kernel.org, Sascha Hauer <s.hauer@pengutronix.de>,
       Samuel Ortiz <sameo@linux.intel.com>
Subject: Re: [PATCH] mfd/mc13783: near complete rewrite
Message-ID: <20091102115101.GF29351@sirena.org.uk>
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X-Cookie: <ahzz_> i figured 17G oughta be enough.
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On Fri, Oct 23, 2009 at 10:38:43PM +0200, Uwe Kleine-K??nig wrote:

> -int mc13783_register_irq(struct mc13783 *mc13783, int irq,
> -		void (*handler) (int, void *), void *data)
> +int mc13783_irq_request_nounmask(struct mc13783 *mc13783, unsigned int irq,
> +		irqreturn_t (*handler)(struct mc13783 *, unsigned int, void *),
> +		const char *name, void *dev)

If you're changing the signature of the IRQ handler functions it'd be
nice to change them to irq_handler_t - that way it'll be much easier to
transition the driver to using genirq in future since it should end up
being possible to just stub out the Atlas-specific calls in the header
with calls to the standard IRQ functions when the core is transitioned,
reducing cross-tree issues.

This might create issues with a request_nounmask() function, though a
request plus mask is probably enough - I guess you're using this for
your the RTC driver in which case a spurious periodic interrupt is
unlikely to be an issue.