linux-kernel - Re: [PATCH 3/3] regmap: regcache: allow read-only regs to be cached

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Message-ID: <20130809114718.GB6427@sirena.org.uk>
Date:	Fri, 9 Aug 2013 12:47:18 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Ionut Nicu <ioan.nicu.ext@....com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] regmap: regcache: allow read-only regs to be cached

On Fri, Aug 09, 2013 at 12:09:20PM +0200, Ionut Nicu wrote:
> The regmap_writeable() check should not be done in
> regcache_write() because this prevents read-only
> registers to be cached. After a read on a read-only
> register its value will not be stored in the cache
> and the next time someone will try to read it the
> value will be read from the bus instead of the
> cache.

Applied, thanks.

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