linux-kernel - Re: [PATCH] clk: Add axi-clkgen driver

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Message-ID: <20130123102755.GP23505@n2100.arm.linux.org.uk>
Date:	Wed, 23 Jan 2013 10:27:55 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Lars-Peter Clausen <lars@...afoo.de>
Cc:	Mike Turquette <mturquette@...aro.org>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] clk: Add axi-clkgen driver

On Wed, Jan 23, 2013 at 11:00:56AM +0100, Lars-Peter Clausen wrote:
> I think I read somewhere at some point that ioread{8,16,32} is preferred
> over write{b,h,l} in new code.

But... there's *no* point using ioread*() if you don't only use the
ioremap() interface.

ioread*() is there to allow PC IO and PC MMIO accesses through one
accessor depending on the cookie.  ioremap() only ever returns cookies
for MMIO accesses.
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