linux-kernel - Re: [PATCH v2 1/2] regmap: Add support for device specific write and read flag masks.

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Message-ID: <20110905215952.GC11107@opensource.wolfsonmicro.com>
Date:	Mon, 5 Sep 2011 14:59:53 -0700
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Lars-Peter Clausen <lars@...afoo.de>
Cc:	Liam Girdwood <lrg@...com>, alsa-devel@...a-project.org,
	device-drivers-devel@...ckfin.uclinux.org,
	uclinux-dist-devel@...ckfin.uclinux.org,
	linux-kernel@...r.kernel.org,
	Scott Jiang <scott.jiang.linux@...il.com>
Subject: Re: [PATCH v2 1/2] regmap: Add support for device specific write and
 read flag masks.

On Mon, Sep 05, 2011 at 08:46:32PM +0200, Lars-Peter Clausen wrote:
> Some buses like SPI have no standard notation of read or write operations.
> The general scheme here is to set or clear specific bits in the register
> address to indicate whether the operation is a read or write. We already
> support having a read flag mask per bus, but as there is no standard
> the bits which need to be set or cleared differ between devices and vendors,
> thus we need a mechanism to specify them per device.

So, I tried to apply this to my topic/interface branch (which is where
I'm keeping stuff for merge into other trees) but that won't fly due to
the internal.h change.  What I might do to resolve the merge issues is
to make a commit with the new regmap.h changes alone.  This won't help
in terms of actually running things but it'll keep things buildable
which is more achievable.

Anyway, thanks for doing this - there's a bunch of other devices that
need this.
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