linux-kernel - Re: [PATCH v2 4/9] mtd: rawnand: jz4780: Add support for the JZ4740

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Date:   Sun, 3 Feb 2019 15:08:27 +0100
From:   Boris Brezillon <bbrezillon@...nel.org>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Harvey Hunt <harveyhuntnexus@...il.com>,
        Mathieu Malaterre <malat@...ian.org>,
        linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/9] mtd: rawnand: jz4780: Add support for the JZ4740

On Sun, 03 Feb 2019 10:56:53 -0300
Paul Cercueil <paul@...pouillou.net> wrote:

> Le dim. 3 févr. 2019 à 4:31, Boris Brezillon <bbrezillon@...nel.org> 
> a écrit :
> > On Sat,  2 Feb 2019 20:19:21 -0300
> > Paul Cercueil <paul@...pouillou.net> wrote:
> >   
> >>  Add support for probing the jz4780-nand driver on the JZ4740 SoC 
> >> from
> >>  Ingenic.
> >> 
> >>  Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> >>  ---
> >> 
> >>  Changes:
> >> 
> >>  v2: - Add support for the JZ4740 and not the JZ4725B: they behave 
> >> the
> >>        same, and JZ4740 is fully upstream while JZ4725B is not. The
> >>        JZ4725B devicetree will then simply use the 
> >> "ingenic,jz4740-nand"
> >>        compatible string.
> >>      - Fix the number of bytes for the ECC when the ECC strength is 
> >> 4.
> >>        This is needed for the JZ4740, which uses Reed-Solomon 
> >> instead of
> >>        BCH.
> >> 
> >>   drivers/mtd/nand/raw/ingenic/jz4780_nand.c | 48 
> >> +++++++++++++++++-----  
> > 
> > If we're going to make the driver compatible with jz4740 and jz4725b
> > maybe we should rename the source files jz47xx_{nand,bch}.{c,h}.  
> 
> I don't know about that. Adding support for new hardware isn't a good 
> reason to
> rename the driver, or so I've been told around here, as you then make 
> it harder
> to review the git history of the driver.

You already move files to a sub-directory so that doesn't make a huge
difference, history will be hard to follow because of this move anyway.