Hello Henrick,

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> -----Original Message-----
> From: Henrik Rydberg [mailto:rydberg@euromail.se]
> Sent: Thursday, August 05, 2010 4:07 PM
> To: Kevin McNeely
> Cc: Dmitry Torokhov; David Brown; Trilok Soni; Fred; Samuel Ortiz;
Eric
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> Miao; Ben Dooks; Simtec Linux Team; Todd Fischer; Arnaud Patard;
Sascha
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> Hauer; linux-input@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH] i2c: cyttsp i2c and spi touchscreen driver init
> submit
> 
> On 08/05/2010 08:12 PM, Kevin McNeely wrote:
> 
> > From: Fred <fwk@ubuntu.linuxcertified.com>
> >
> > This is a new touchscreen driver for the Cypress Semiconductor
> > cyttsp family of devices.  This updated driver is for both the i2c
> and spi
> > versions of the devices. The driver code consists of common core
code
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> for
> > both i2c and spi driver.  This submission is in response to review
> comments
> > from the initial submission.
> >
> > Signed-off-by: Kevin McNeely <kev@cypress.com>
> > ---
> 
> 
> General impression: There is a lot of useful code in here, but as
> already
> pointed out, well over half of it should not be part of the kernel
> driver.
> 
> Suggestion 1: Clean out the internal state code and use MT protocol B
> instead.
> 
> Suggestion 2: Cut out the single touch calculation, as already pointed
> out by
> Trilok. Why not submit it to the mtdev project instead? The problem is
> generic
> to all new MT drivers, so a common solution while waiting for full MT
> support in
> userspace could be useful.

I will remove the ST code and polling completely.

However, I would like to keep the MT Protocol A.  Our solution allows
The platform builder to select to use MT protocol B or not as part of 
platform_data in the board configuration. If it makes more sense,
I can reverse the code to default to protocol B and allow the platform
builder developer to select protocol A.

Thank you for the invitation to submit to the mtdev project.
I defer to Dmitry if I should make the next update into the mtdev
project.

Thank you for your review.
-kev

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> 
> Thanks,
> Henrik

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