linux-kernel - Re: [PATCH 11/20] sound, skylake: switch from ioremap

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Date:	Mon, 19 Oct 2015 17:34:48 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	"Mark Brown" <broonie@...nel.org>
Cc:	"Dan Williams" <dan.j.williams@...el.com>,
	"Liam Girdwood" <lgirdwood@...il.com>,
	"Jeeja KP" <jeeja.kp@...el.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	"Jaroslav Kysela" <perex@...ex.cz>, <linux-arch@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 11/20] sound, skylake: switch from ioremap_cache to memremap

On Mon, 19 Oct 2015 17:26:41 +0200,
Mark Brown wrote:
> 
> On Fri, Oct 09, 2015 at 06:16:36PM -0400, Dan Williams wrote:
> > In preparation for deprecating ioremap_cache() convert its usage in
> > skl-nhlt to memremap.
> 
> > -void __iomem *skl_nhlt_init(struct device *dev)
> > +void *skl_nhlt_init(struct device *dev)
> 
> Why are we loosing the annotation here?

It's the exact purpose of this patchset, as far as I understand.
memremap() allows the driver accessing the mapped memory just like a
normal memory unlike ioremap().


Takashi
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