From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Subject: Re: [PATCH v1] I2C Designware Core Supports SMBUS BLOCK
Date: Wed, 26 Oct 2016 11:16:00 +0300
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To: Tin Huynh <tnhuynh@apm.com>
Cc: Jarkko Nikula <jarkko.nikula@linux.intel.com>, Andy Shevchenko <andriy.shevchenko@linux.intel.com>, Wolfram Sang <wsa@the-dreams.de>, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, Loc Ho <lho@apm.com>, Thang Nguyen <tqnguyen@apm.com>, Phong Vo <pvo@apm.com>, patches <patches@apm.com>

On Wed, Oct 26, 2016 at 02:26:05PM +0700, Tin Huynh wrote:
>    But can you explain more about 'but even that starts to require small
>    helper function'?

So you could add a small function i2c_dw_xfer_need_stop() that returns
true if you need to set the stop bit.