[alsa-devel] [PATCHv1 1/8] ALSA: Add SAI SoC Digital Audio Interface driver.

Xiubo Li-B47053 B47053 at freescale.com
Fri Oct 18 05:42:13 CEST 2013

> > > I understand that, but I'm trying to figure out why of_iomap() is
> > > okay for hundreds of other drivers, but not this one.  I've used it
> > > dozens of times myself, without ever worrying about overlapping
> regions.
> > The driver would work fine with just of_iomap(). But the resource
> > range check comes basically for free and it does help to catch errors,
> > so I'd recommend on using it rather than not using it.
> There's also the fact that it's a devm_ function which means less error
> handling code that we can break which is nice.  There's probably a case
> for an improved OF helper here...

Using this instead of of_iomap() is because "devm_" and resource range check
as Lars and Mark said, and there are more than one SAI device here which will
be added later, maybe the resource range check is needed.


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