linux-kernel - Re: New Driver for DaVinci DM355/DM365/DM6446

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Message-ID: <20090601145714.36158fe8@pedra.chehab.org>
Date:	Mon, 1 Jun 2009 14:57:14 -0300
From:	Mauro Carvalho Chehab <mchehab@...radead.org>
To:	"Paulraj, Sandeep" <s-paulraj@...com>
Cc:	"linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Grosen, Mark" <mgrosen@...com>
Subject: Re: New Driver for DaVinci DM355/DM365/DM6446

Em Mon, 1 Jun 2009 11:54:37 -0500
"Paulraj, Sandeep" <s-paulraj@...com> escreveu:

> 
> 
> > -----Original Message-----
> > From: Mauro Carvalho Chehab [mailto:mchehab@...radead.org]
> > Sent: Monday, June 01, 2009 12:35 PM
> > To: Paulraj, Sandeep
> > Cc: linux-media@...r.kernel.org; linux-kernel@...r.kernel.org; Grosen,
> > Mark
> > Subject: Re: New Driver for DaVinci DM355/DM365/DM6446
> > 
> > Em Mon, 1 Jun 2009 09:56:40 -0500
> > "Paulraj, Sandeep" <s-paulraj@...com> escreveu:
> > 
> > >
> > > Hello,
> > >
> > > WE have a module(H3A) on Davinci DM6446,DM355 and DM365.
> > >
> > > Customers require a way to collect the data required to perform the Auto
> > Exposure (AE), Auto Focus(AF), and Auto White balance (AWB) in hardware as
> > opposed to software. This is primarily for performance reasons as there is
> > not enough software processing MIPS (to do 3A statistics) available in
> > > an imaging/video system.
> > >
> > > Including this block in hardware reduces the load on the processor and
> > bandwidth to the memory as the data is collected on the fly from the
> > imager.
> > >
> > > This modules collects statistics and we currently implement it as a
> > character driver.
> > >
> > > Which mailing list would be the most appropriate mailing list to submit
> > patches for review?
> > 
> > You should send they to:
> > 	LMML <linux-media@...r.kernel.org>
> > 
> > If you are proposing API changes, please submit they first.
> [Sandeep] WE don't propose any API changes. This module for which we want to submit patches is a TI proprietary IP. We currently implement this as a character device and have a few IOCTL's.
> We do not follow the V4L2 framework and do not use any V4L2 IOCTLs.
> 
> Can we continue to use it as a character driver?

In this case, I don't see why you want it to be upstream.



Cheers,
Mauro
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