linux-kernel - Re: [PATCH 3/8] i2c: i2c-bfin-twi: Break dead waiting loop if i2c device misbehaves.

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Message-ID: <CAM=Q2csTziLb0niCTj6oW9G=BPa2VWN58rW2jF-A1VJKXwNfCQ@mail.gmail.com>
Date:	Thu, 17 May 2012 10:50:24 +0530
From:	Shubhrajyoti Datta <omaplinuxkernel@...il.com>
To:	sonic.zhang@...log.com
Cc:	Ben Dooks <ben-linux@...ff.org>,
	Wolfram Sang <w.sang@...gutronix.de>,
	linux-i2c@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	uclinux-dist-devel@...ckfin.uclinux.org
Subject: Re: [PATCH 3/8] i2c: i2c-bfin-twi: Break dead waiting loop if i2c
 device misbehaves.

Hello,

On Wed, May 16, 2012 at 12:50 PM,  <sonic.zhang@...log.com> wrote:
> From: Sonic Zhang <sonic.zhang@...log.com>
>
> Some fault i2c device may hold the sda/scl line and cause i2c driver
> wait in the BUS busy loop. This patch breaks this potential dead
> loop.
How about using a non-busy loop while you are at it.

>
> Signed-off-by: Sonic Zhang <sonic.zhang@...log.com>
>
> git-svn-id: svn://localhost/svn/linux-kernel/trunk@...1 526b6c2d-f592-4532-a319-5dd88ccb003d
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