linux-kernel - Re: [PATCH 1/4] regmap: cache: Factor out reg

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Message-ID: <20130330011137.GA26560@opensource.wolfsonmicro.com>
Date:	Sat, 30 Mar 2013 01:11:37 +0000
From:	Dimitris Papastamos <dp@...nsource.wolfsonmicro.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] regmap: cache: Factor out reg_present support from
	rbtree cache

On Fri, Mar 29, 2013 at 09:03:42PM +0000, Mark Brown wrote:
> The idea of maintaining a bitmap of present registers is something that
> can usefully be used by other cache types that maintain blocks of cached
> registers so move the code out of the rbtree cache and into the generic
> regcache code.
> 
> Refactor the interface slightly as we go to wrap the set bit and enlarge
> bitmap operations (since we never do one without the other) and make it
> more robust for reads of uncached registers by bounds checking before we
> look at the bitmap.
> 
> Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>

Looks good.

Reviewed-by: Dimitris Papastamos <dp@...nsource.wolfsonmicro.com>
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