linux-kernel - Re: [PATCH 1/1] regmap: Add support for continously numbered pages across regmap range

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Message-ID: <20121128131539.GP32691@opensource.wolfsonmicro.com>
Date:	Wed, 28 Nov 2012 13:15:40 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	"Navada Kanyana, Mukund" <navada@...com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] regmap: Add support for continously numbered pages
 across regmap range

On Wed, Nov 28, 2012 at 12:10:21PM +0000, Navada Kanyana, Mukund wrote:

To repeat, fix your mailer to word wrap within paragraphs.

> > You appear to have two different ranges with the same selector and
> > window.  I'm really not sure why you expect this to work...  what
> > happens when someone reads from the two different ranges simultaneously?

> The selector register has to written appropriate page number. Two
> different ranges cannot be accessed simultaneously without changing
> the page number in the selector register.

This would be exactly the problem, yes.  In any case, this looks like
user error.  You shouldn't be using the same window twice.

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