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From: Wolfram Sang <w.sang@pengutronix.de>
To: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-i2c@vger.kernel.org, Jean Delvare <khali@linux-fr.org>
Subject: Re: [PATCH 1/4] i2c: introduce i2c-cbus driver
Date: Thu, 13 Sep 2012 12:53:09 +0200	[thread overview]
Message-ID: <20120913105309.GF14237@pengutronix.de> (raw)
In-Reply-To: <1346703805-31598-2-git-send-email-aaro.koskinen@iki.fi>

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On Mon, Sep 03, 2012 at 11:23:22PM +0300, Aaro Koskinen wrote:
> Add i2c driver to enable access to devices behind CBUS on Nokia Internet
> Tablets.
> 
> The patch also adds CBUS I2C configuration for N8x0 which is one of the
> users of this driver.
> 
> Cc: linux-i2c@vger.kernel.org
> Acked-by: Felipe Balbi <balbi@ti.com>
> Acked-by: Tony Lindgren <tony@atomide.com>
> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>

My main question is: what is CBUS? It doesn't look like an I2C/SMBUS
host controller, but some bit-banging protocol? As such, it shouldn't go
to i2c/busses/. And the protocol doesn't look much like I2C, neither.
There is no ACK/NACK/START/STOP, so I wonder if it should be in i2c
after all...

Jean, maybe you want to have a glimpse on this as well?

Regards,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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  parent reply	other threads:[~2012-09-13 10:53 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-03 20:23 [PATCH 0/4] cbus/retu drivers to mainline Aaro Koskinen
2012-09-03 20:23 ` [PATCH 1/4] i2c: introduce i2c-cbus driver Aaro Koskinen
2012-09-03 20:23   ` Aaro Koskinen
2012-09-04  9:05   ` Felipe Balbi
2012-09-04  9:31     ` Aaro Koskinen
2012-09-04  9:31       ` Aaro Koskinen
2012-09-04 11:41       ` Felipe Balbi
2012-09-13 10:53   ` Wolfram Sang [this message]
2012-09-13 14:51     ` Aaro Koskinen
2012-09-13 14:51       ` Aaro Koskinen
2012-09-14 10:08   ` Wolfram Sang
2012-09-14 10:21     ` Jean Delvare
2012-09-14 10:21       ` Jean Delvare
2012-09-14 12:16     ` Felipe Balbi
2012-09-14 12:16       ` Felipe Balbi
2012-09-19 20:08     ` Aaro Koskinen
2012-09-20 10:43       ` Wolfram Sang
2012-09-03 20:23 ` [PATCH 2/4] mfd: introduce retu-mfd driver Aaro Koskinen
2012-09-03 20:23   ` Aaro Koskinen
2012-09-19 16:02   ` Samuel Ortiz
2012-09-19 20:09     ` Aaro Koskinen
2012-09-03 20:23 ` [PATCH 3/4] watchdog: introduce retu_wdt driver Aaro Koskinen
2012-09-03 20:23 ` [PATCH 4/4] input: misc: introduce retu-pwrbutton Aaro Koskinen
2012-09-03 20:23   ` Aaro Koskinen
2012-09-04 16:09 ` [PATCH 0/4] cbus/retu drivers to mainline Andi Shyti

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