linux-kernel - Re: [PATCH] regmap: assume registers are volatile iff no cache

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Message-ID: <20130603184807.GR31367@sirena.org.uk>
Date:	Mon, 3 Jun 2013 19:48:07 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Stephen Warren <swarren@...dotorg.org>
Cc:	linux-kernel@...r.kernel.org, Stephen Warren <swarren@...dia.com>
Subject: Re: [PATCH] regmap: assume registers are volatile iff no cache

On Mon, Jun 03, 2013 at 11:34:48AM -0600, Stephen Warren wrote:

> If a regmap has a cache, it's likely that registers are not volatile,
> perhaps with exceptions. Otherwise, the cache would not be useful. Encode
> this assumption into regmap_volatile()'s default return value, for the
> case where a regmap doesn't specify which registers are volatile.

I already sent out a patch of my own for this.

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