From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Thu, 4 Jul 2013 10:00:49 +0100
From: Mark Brown <broonie@kernel.org>
To: =?utf-8?B?546L5a6H6Iiq?= <wangyuhang2014@gmail.com>
Message-ID: <20130704090049.GJ27646@sirena.org.uk>
References: <CAHSAbzMGqQgCLL9ymQ6qSeJRybv2jJfm-sbzZVgayVyKYgufLQ@mail.gmail.com>
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Subject: Re: SPI : DUAL/QUAD support
Cc: grant.likely@secretlab.ca, spi-devel-general@lists.sourceforge.net,
 linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org
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On Thu, Jul 04, 2013 at 03:07:31PM +0800, =E7=8E=8B=E5=AE=87=E8=88=AA wrote:

> Now some SPI controllers and Slave Devices have supported
> DUAL and QUAD transfer mode. But SPI controller driver in kernel
> has no member to deliver this information from Slave to Master.
> So in my opinion, adding transfer mode members to deal with the problem.

You'll need to tell us what "DUAL" and "QUAD" modes are and provide some
kerneldoc for the new fields.

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