linux-kernel - Re: [PATCH 11/12] of: mtd: drop support for NAND_ECC_SOFT_BCH as "soft

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Message-ID: <20160416100125.272f6347@bbrezillon>
Date:	Sat, 16 Apr 2016 10:01:25 +0200
From:	Boris Brezillon <boris.brezillon@...e-electrons.com>
To:	Rafał Miłecki <zajec5@...il.com>
Cc:	linux-mtd@...ts.infradead.org, Rob Herring <robh+dt@...nel.org>,
	Frank Rowand <frowand.list@...il.com>,
	Grant Likely <grant.likely@...aro.org>,
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
	DEVICE TREE), linux-kernel@...r.kernel.org (open list)
Subject: Re: [PATCH 11/12] of: mtd: drop support for NAND_ECC_SOFT_BCH as
 "soft_bch" mapping

On Sat, 16 Apr 2016 10:00:43 +0200
Boris Brezillon <boris.brezillon@...e-electrons.com> wrote:

> On Fri, 15 Apr 2016 21:54:11 +0200
> Rafał Miłecki <zajec5@...il.com> wrote:
> 
> > There isn't any difference between handling NAND_ECC_SOFT and
> > NAND_ECC_SOFT_BCH now. What matters is the new field called "algo".
> > Please note we're keeping backward DT compatibility. We are still
> > treating "soft_bch" value as the one setting Hamming algorithm, it's
> > just handled in of_get_nand_ecc_algo now.
> > 
> > Signed-off-by: Rafał Miłecki <zajec5@...il.com>
> > ---
> >  drivers/of/of_mtd.c | 9 ++++++++-
> >  1 file changed, 8 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/of/of_mtd.c b/drivers/of/of_mtd.c
> 
> This series is getting rid of of_mtd{.c,.h}, so I'll move those changes
> directly into nand_base.c when applying.

Oops, here is the link:
http://lkml.iu.edu/hypermail/linux/kernel/1604.0/00298.html

> 
> > index 15d056e..a70a38c 100644
> > --- a/drivers/of/of_mtd.c
> > +++ b/drivers/of/of_mtd.c
> > @@ -22,7 +22,6 @@ static const char *nand_ecc_modes[] = {
> >  	[NAND_ECC_HW]		= "hw",
> >  	[NAND_ECC_HW_SYNDROME]	= "hw_syndrome",
> >  	[NAND_ECC_HW_OOB_FIRST]	= "hw_oob_first",
> > -	[NAND_ECC_SOFT_BCH]	= "soft_bch",
> >  };
> >  
> >  /**
> > @@ -45,6 +44,14 @@ int of_get_nand_ecc_mode(struct device_node *np)
> >  		if (!strcasecmp(pm, nand_ecc_modes[i]))
> >  			return i;
> >  
> > +	/*
> > +	 * For backward compatibility we support few obsoleted values that don't
> > +	 * have their mappings into nand_ecc_modes_t anymore (they were merged
> > +	 * with other enums).
> > +	 */
> > +	if (!strcasecmp(pm, "soft_bch"))
> > +		return NAND_ECC_SOFT;
> > +
> >  	return -ENODEV;
> >  }
> >  EXPORT_SYMBOL_GPL(of_get_nand_ecc_mode);
> 
> 
> 



-- 
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com