[PATCH] Staging: MTD: Micron SPINAND Driver support

[Kamlakant Patel]

On Thu, Oct 03, 2013 at 05:49:58AM +0000, Gupta, Pekon wrote:
> > From: linux-mtd  On Behalf Of Brian Norris
> > > On Tue, Oct 01, 2013 at 03:03:58PM +0530, Kamlakant Patel wrote:
> > > This patch adds support for Micron SPINAND via MTD.
> > >
> > > Signed-off-by: Mona Anonuevo <manonuevo at micron.com>
> > > Signed-off-by: Kamlakant Patel <kamlakant.patel at broadcom.com>
> > > ---
> > > This patch has to be merged via staging tree.
> > >
> > > This is a driver from Micron for MT29F1G01ZACH4 SPI based NAND chips.
> > This driver had
> > > been posted multiple times to the mtd list.
> > > 1. http://lists.infradead.org/pipermail/linux-mtd/2010-May/031975.html
> > > 2. http://lists.infradead.org/pipermail/linux-mtd/2010-April/029523.html
> > > 3. patchwork.ozlabs.org/patch/258697/
> > > This has not been merged into the main kernel yet.
> > >
> > > I have cleaned and updated it for current kernel. Since there are many
> > users for
> > > this driver, it may be useful to add it to the staging tree, where further fixes
> > and
> > > cleanups can be done. Once it reaches to the standard will be moved to the
> > mtd.
> > >
> > > This driver has been tested with Micron SPINAND MT29F1G01ZACH4 chip
> > on kernel 3.12 on
> > > the Netlogic XLP platforms.
> > >
> > > Mona Anonuevo, I have retained your sign-offs from the original patch.
> > >
> I see that major portion (especially the generic framework) is ported from
> http://lists.infradead.org/pipermail/linux-mtd/2010-May/031975.html
> So shouldn't you just maintain the original authorship ?
> And the original headers ?
> 

I have retained signoff, module_author name and copyright from the
original patch. There are significant changes in the code, so
it will not be correct to keep the commit author.

> > 
> > You can address these comments in follow up patches after it's included
> > in staging, though. There's probably more review needed anyway
> > eventually (I see that no one really has reviewed this on the MTD
> > mailing list yet).
> > 
> The original version of this patch in 2010 added *generic spinand*
> framework. And support for m29f (Micron devices) should have been
> added using that generic framework. But due to lack of response
> generic framework never went in.
> Therefore I think this patch series adds a customized driver just for
> 'm29f' (Micron serial NAND) devices, removing the generalization.
> 
> There was a refreshed version of original patch (with generic framework)
> but no response on that too. I don't want to hold this patch, but it would
> be good, if you can review generic framework also ..
> https://lkml.org/lkml/2013/6/26/88

Right now, we don't want do merge the framework code into staging, that
has to go through linux-mtd after discussion. This patch is to add a
working driver for mt29f chip using the existing NAND framework.

> 
> with regards, pekon
>