linux-kernel - Re: Regmap cached only when write happen to register

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Message-ID: <20120514164746.GD25668@opensource.wolfsonmicro.com>
Date:	Mon, 14 May 2012 17:47:46 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Laxman Dewangan <ldewangan@...dia.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Regmap cached only when write happen to register

On Mon, May 14, 2012 at 10:11:31PM +0530, Laxman Dewangan wrote:

> When debugging  on register caching, found that register is getting
> cached only when write happen to the register otherwise it will not
> get cached even any number of read happen.
> Is it by intended or there is opportunity to enhance it so that
> during read also we can cache it.\?

If you check -next you should find that the current code already caches
any single register read.

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