linux-kernel - Re: [PATCH 0/8] Generic I2C and SPI register map library

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Message-ID: <20110623104425.GE21932@opensource.wolfsonmicro.com>
Date:	Thu, 23 Jun 2011 11:44:26 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Jonathan Cameron <jic23@....ac.uk>
Cc:	linux-kernel@...r.kernel.org,
	Dimitris Papastamos <dp@...nsource.wolfsonmicro.com>,
	Liam Girdwood <lrg@...com>,
	Samuel Oritz <sameo@...ux.intel.com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Jean Delvare <khali@...ux-fr.org>
Subject: Re: [PATCH 0/8] Generic I2C and SPI register map library

On Thu, Jun 23, 2011 at 09:54:25AM +0100, Jonathan Cameron wrote:
> On 06/23/11 02:25, Mark Brown wrote:

> > If you're only using SMBus then the I2C interface includes SMBus based
> > register support which should do what you want.  With the regmap API it
> > ought to work as a device with 8 bit registers and 8 bit values.

> The kicker here is that quite a few hosts only support the smbus subset.
> How should that be handled here?

For 8x8 registers we *should* end up only using the SMBus subset so it
should just work.
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