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

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Message-Id: <1549203050.1950.3@crapouillou.net>
Date:   Sun, 03 Feb 2019 11:10:50 -0300
From:   Paul Cercueil <paul@...pouillou.net>
To:     Boris Brezillon <bbrezillon@...nel.org>
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



Le dim. 3 févr. 2019 à 11:08, Boris Brezillon <bbrezillon@...nel.org> 
a écrit :
> 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.

Yes, but if I merge the *_bch.c files together, and eventually drop
jz4740-nand.c, does it still make sense to move to a sub-directory?