linux-kernel - Re: [PATCHv1] staging: Synaptics RMI4 touchpad driver support

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Message-ID: <20101102154029.GH11778@core.coreip.homeip.net>
Date:	Tue, 2 Nov 2010 08:40:30 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Linus Walleij <linus.walleij@...ricsson.com>
Cc:	Greg KH <greg@...ah.com>,
	Naveen Kumar GADDIPATI <naveen.gaddipati@...ricsson.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	STEricsson_nomadik_linux <STEricsson_nomadik_linux@...t.st.com>,
	linux-input@...r.kernel.org
Subject: Re: [PATCHv1] staging: Synaptics RMI4 touchpad driver support

On Tue, Nov 02, 2010 at 03:14:48PM +0100, Linus Walleij wrote:
> Greg KH wrote:
> 
> >> +Wait for the official upstream synaptics rmi4 clearpad drivers as promised over the past few months
> >> +Merge any device support needed from this driver into it
> >> +Delete this driver
> > 
> > Huh?
> > 
> > Why not just add this driver to the kernel tree instead?  When the
> > "promised" driver then eventually shows up (who is promising it?) then
> > delete the thing.

The same reason as there were several wireless drivers in staging?

> 
> Well, Alan (on behalf of Ramesh Agarwal) sent out a very similar
> patch (Titled "Synaptics TM1217 Touchscreen Controller driver")
> the other day, and OTOMH that was after discussions with Synaptics
> where they said they were working on a "real" driver (a rather
> complex RMI4 bus driver) and we believe they will fix that sooner
> or later.
> 
> So, until sooner or later happens we thought we'd keep it in staging.
> 
> If you prefer both Alan and we can probably submit our patches for
> inclusion in the proper place.
> 
> A side effect may be that the Synaptics RMI4 people may have trouble
> to merge their driver into input/ since they may be requested to
> refactor the existing drivers to use it rather than merging new stuff,
> putting some burden on their shoulders.
> 

No, they have not been requested to change any existing [in tree]
drivers. They however been asked to convert to the driver core
primitives instead of rolling their own infprastructure to implement
devices and drivers binding.

Thanks.

-- 
Dmitry
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