linux-kernel - Re: [PATCH 1/1] mouse: add qci touchpad driver

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Message-ID: <20100810232014.GB21240@huya.qualcomm.com>
Date:	Tue, 10 Aug 2010 16:20:14 -0700
From:	David Brown <davidb@...eaurora.org>
To:	Trilok Soni <tsoni@...eaurora.org>
Cc:	Neil Leeder <nleeder@...eaurora.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-input@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org, Horace Fu <horace.fu@...ntatw.com>,
	Mandeep Singh Baines <msb@...omium.org>
Subject: Re: [PATCH 1/1] mouse: add qci touchpad driver

On Sat, Aug 07, 2010 at 04:14:54PM +0530, Trilok Soni wrote:

> > +
> > +/*
> > + * Driver communicates over i2c to nuvoTon WPCE775x Embedded Controller,
> > + * which has touchpad attached through PS/2 interface.
> > + */
> 
> Why this driver is not developed through MFD architecture then? nuvoTon chip
> looks like multi-function chip, isn't it?

It is, in the sense that it does multiple things.  But, for this
particular device, it makes the keyboard available as an i2c device.
I don't see any particular reason to tie that to other functionality
that the chip provides.

David
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