Re: [PATCH] mfd/mc13783: near complete rewrite

From: Mark Brown
Date: Mon Nov 02 2009 - 06:51:11 EST

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.
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