From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sebastian Reichel <sre@kernel.org>
Subject: Re: [PATCH] i2c-omap: Trigger bus recovery in lockup case
Date: Wed, 20 Sep 2017 17:02:16 +0200
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To: Vignesh R <vigneshr@ti.com>
Cc: Claudio Foellmi <claudio.foellmi@ergon.ch>, "Strashko, Grygorii" <grygorii.strashko@ti.com>, Tony Lindgren <tony@atomide.com>, "Nori, Sekhar" <nsekhar@ti.com>, "Cooper Jr., Franklin" <fcooper@ti.com>, Aaro Koskinen <aaro.koskinen@iki.fi>, Wolfram Sang <wsa@the-dreams.de>, "linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>, "linux-i2c@vger.kernel.org" <linux-i2c@vger.kernel.org>


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Hi,

On Tue, Sep 19, 2017 at 04:20:49PM +0530, Vignesh R wrote:
> I hit a situation where when communicating with a faulty i2c device, the
> last transaction on the bus does not end with proper STOP condition on
> the i2c bus.

Yeah, omap-i2c seems to have big issues with a device not acking a
transaction properly. It can be easily triggered on N950 (OMAP3 based):

https://patchwork.kernel.org/patch/9914785/

Please Cc me when sending a patch, so that I can test it on N950.

-- Sebastian

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