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From: Stefan Agner <stefan@agner.ch>
To: Boris Brezillon <boris.brezillon@bootlin.com>
Cc: mark.rutland@arm.com, devicetree@vger.kernel.org,
	pgaikwad@nvidia.com, dev@lynxeye.de, mirza.krak@gmail.com,
	benjamin.lindqvist@endian.se, pdeschrijver@nvidia.com,
	miquel.raynal@bootlin.com, linux-kernel@vger.kernel.org,
	robh+dt@kernel.org, jonathanh@nvidia.com, marek.vasut@gmail.com,
	thierry.reding@gmail.com, linux-mtd@lists.infradead.org,
	krzk@kernel.org, richard@nod.at, linux-tegra@vger.kernel.org,
	digetx@gmail.com, computersforpeace@gmail.com,
	dwmw2@infradead.org, marcel@ziswiler.com
Subject: Re: [PATCH v3 1/6] mtd: rawnand: add Reed-Solomon error correction algorithm
Date: Fri, 01 Jun 2018 15:34:33 +0200	[thread overview]
Message-ID: <18ce3100aabf42059dbd514fb8c93e84@agner.ch> (raw)
In-Reply-To: <20180601112506.2157e8b0@bbrezillon>

On 01.06.2018 11:25, Boris Brezillon wrote:
> On Fri, 1 Jun 2018 09:26:00 +0200
> Boris Brezillon <boris.brezillon@bootlin.com> wrote:
> 
>> On Fri,  1 Jun 2018 00:16:32 +0200
>> Stefan Agner <stefan@agner.ch> wrote:
>>
>> > Add Reed-Solomon (RS) to the enumeration of ECC algorithms.
>> >
>> > Signed-off-by: Stefan Agner <stefan@agner.ch>
>>
>> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
>>
>> > ---
>> >  drivers/mtd/nand/raw/nand_base.c | 1 +
>> >  include/linux/mtd/rawnand.h      | 1 +
> 
> Hm, you forgot to update Documentation/devicetree/bindings/mtd/nand.txt.
> 

Yeah I was not sure about that. Currently it says:

- nand-ecc-algo: string, algorithm of NAND ECC.                         
                                                                   
                 Supported values are: "hamming", "bch".

Is supported meant by software ECC here? I feel "supported" is a rather
strong word since it is clearly controller dependent whether it is
actually supported...

--
Stefan

>> >  2 files changed, 2 insertions(+)
>> >
>> > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
>> > index f28c3a555861..9eb5678dd6d0 100644
>> > --- a/drivers/mtd/nand/raw/nand_base.c
>> > +++ b/drivers/mtd/nand/raw/nand_base.c
>> > @@ -5744,6 +5744,7 @@ static int of_get_nand_ecc_mode(struct device_node *np)
>> >  static const char * const nand_ecc_algos[] = {
>> >  	[NAND_ECC_HAMMING]	= "hamming",
>> >  	[NAND_ECC_BCH]		= "bch",
>> > +	[NAND_ECC_RS]		= "rs",
>> >  };
>> >
>> >  static int of_get_nand_ecc_algo(struct device_node *np)
>> > diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
>> > index 5dad59b31244..6a82da8c44ce 100644
>> > --- a/include/linux/mtd/rawnand.h
>> > +++ b/include/linux/mtd/rawnand.h
>> > @@ -114,6 +114,7 @@ enum nand_ecc_algo {
>> >  	NAND_ECC_UNKNOWN,
>> >  	NAND_ECC_HAMMING,
>> >  	NAND_ECC_BCH,
>> > +	NAND_ECC_RS,
>> >  };
>> >
>> >  /*
>>
>>
>> ______________________________________________________
>> Linux MTD discussion mailing list
>> http://lists.infradead.org/mailman/listinfo/linux-mtd/

  reply	other threads:[~2018-06-01 13:34 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-31 22:16 [PATCH v3 0/6] mtd: rawnand: add NVIDIA Tegra NAND flash support Stefan Agner
2018-05-31 22:16 ` [PATCH v3 1/6] mtd: rawnand: add Reed-Solomon error correction algorithm Stefan Agner
2018-06-01  7:26   ` Boris Brezillon
2018-06-01  9:25     ` Boris Brezillon
2018-06-01 13:34       ` Stefan Agner [this message]
2018-06-01 13:43         ` Boris Brezillon
2018-05-31 22:16 ` [PATCH v3 2/6] mtd: rawnand: add an option to specify NAND chip as a boot device Stefan Agner
2018-06-01  7:26   ` Boris Brezillon
2018-06-05 20:11   ` Rob Herring
2018-06-06  7:28     ` Boris Brezillon
2018-05-31 22:16 ` [PATCH v3 3/6] mtd: rawnand: tegra: add devicetree binding Stefan Agner
2018-06-01  7:30   ` Boris Brezillon
2018-06-05 20:19     ` Dmitry Osipenko
2018-06-06 10:39       ` Thierry Reding
2018-06-06 10:45         ` Boris Brezillon
2018-06-06 11:07           ` Thierry Reding
2018-06-06 12:14             ` Stefan Agner
2018-06-06 12:31               ` Boris Brezillon
2018-06-05 20:13   ` Rob Herring
2018-05-31 22:16 ` [PATCH v3 4/6] mtd: rawnand: add NVIDIA Tegra NAND Flash controller driver Stefan Agner
2018-06-01  9:20   ` Dmitry Osipenko
2018-06-08 21:51     ` Stefan Agner
2018-06-09  5:52       ` Boris Brezillon
2018-06-09  6:23         ` Stefan Agner
2018-06-09  6:41           ` Boris Brezillon
2018-06-09  6:46             ` Boris Brezillon
2018-06-09  6:55               ` Boris Brezillon
2018-06-09  6:51             ` Stefan Agner
2018-06-09 12:21       ` Dmitry Osipenko
2018-06-10 11:09         ` Stefan Agner
2018-06-10 15:00           ` Dmitry Osipenko
2018-06-10 15:32             ` Boris Brezillon
2018-06-11 11:45               ` Dmitry Osipenko
2018-06-11 11:50                 ` Boris Brezillon
2018-06-11 13:10                   ` Dmitry Osipenko
2018-06-04 17:16   ` Randolph Maaßen
2018-06-04 20:56     ` Stefan Agner
2018-06-09  5:55   ` Boris Brezillon
2018-06-09  7:18   ` Boris Brezillon
2018-05-31 22:16 ` [PATCH v3 5/6] ARM: dts: tegra: add Tegra20 NAND flash controller node Stefan Agner
2018-05-31 22:16 ` [PATCH v3 6/6] ARM: dts: tegra: enable NAND flash on Colibri T20 Stefan Agner

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