linux-kernel - Re: [PATCH 0/5] mfd: replace IORESOURCE_IO by IORESOURCE

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Date:	Mon, 6 Aug 2012 16:46:19 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Haojian Zhuang <haojian.zhuang@...il.com>
Cc:	sameo@...ux.intel.com, rpurdie@...ys.net, bryan.wu@...onical.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/5] mfd: replace IORESOURCE_IO by IORESOURCE_MEM

On Mon, Aug 06, 2012 at 10:42:12PM +0800, Haojian Zhuang wrote:
> On Mon, Aug 6, 2012 at 10:30 PM, Mark Brown

> > This isn't much more appropriate - _MEM is for memory ranges so isn't
> > directly relevant to register addresses either.  If anything _IO is
> > slightly nearer.

> I use register resource to distinguish different components now. For
> example, component driver
> needs to access the registers in PMIC. These registers offsets are set
> in 88pm860x-core.c.

I understand this.

> So I think that it may not be called _IO.

Right, but _MEM isn't terribly relevant either.  If anything _IO is a
bit better as ioports are *somewhat* similar to registers.
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