Re: [RESEND v5 12/21] mtd: rawnand: Deprecate nand-ecc-mode in favor of nand-ecc-provider

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Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx> wrote on Wed, 27 May
2020 01:03:25 +0200:

> On Tue, 26 May 2020 21:56:24 +0200
> Miquel Raynal <miquel.raynal@xxxxxxxxxxx> wrote:
> 
> > Use nand-ecc-provider as the provider DT property. Fallback to
> > nand-ecc-mode if the property does not exist.
> > 
> > Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
> > ---
> >  drivers/mtd/nand/raw/nand_base.c | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
> > index 69c1b7ab938e..7d17d52cdd34 100644
> > --- a/drivers/mtd/nand/raw/nand_base.c
> > +++ b/drivers/mtd/nand/raw/nand_base.c
> > @@ -5036,7 +5036,9 @@ of_get_nand_ecc_engine_type(struct device_node *np)
> >  	const char *pm;
> >  	int err;
> >  
> > -	err = of_property_read_string(np, "nand-ecc-mode", &pm);
> > +	err = of_property_read_string(np, "nand-ecc-provider", &pm);  
> 
> 					   "nand-ecc-engine-type"
> 
> And I'd prefer to have a different string table for that one, so we get
> rid of the confusing "hw" type (which is actually "on-controller").

So this means
* keeping a legacy table
* supporting both tables
* with both DT properties
* eventually refuse the legacy entries in spi-nand

Sounds like a lot of burden to me for a minor improvement. If we rename
"hw" into "on-controller" we must also add "off-controller" then, but
again, I find it confusing.

I am a bit lost on what is the "right" direction right now.



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