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SubjectRe: [RFC PATCH v2 03/14] of: mtd: add documentation for nand-ecc-level property
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On Wed, 29 Jan 2014 14:53:32 -0300, Ezequiel Garcia <ezequiel.garcia@free-electrons.com> wrote:
> On Wed, Jan 29, 2014 at 03:34:13PM +0100, Boris BREZILLON wrote:
> > nand-ecc-level property statically defines NAND chip's ECC requirements.
> >
> > Signed-off-by: Boris BREZILLON <b.brezillon.dev@gmail.com>
> > ---
> > Documentation/devicetree/bindings/mtd/nand.txt | 3 +++
> > 1 file changed, 3 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/mtd/nand.txt b/Documentation/devicetree/bindings/mtd/nand.txt
> > index 03855c8..0c962296 100644
> > --- a/Documentation/devicetree/bindings/mtd/nand.txt
> > +++ b/Documentation/devicetree/bindings/mtd/nand.txt
> > @@ -3,5 +3,8 @@
> > - nand-ecc-mode : String, operation mode of the NAND ecc mode.
> > Supported values are: "none", "soft", "hw", "hw_syndrome", "hw_oob_first",
> > "soft_bch".
> > +- nand-ecc-level : Two cells property defining the ECC level requirements.
> > + The first cell represent the strength and the second cell the ECC block size.
> > + E.g. : nand-ecc-level = <4 512>; /* 4 bits / 512 bytes */
> > - nand-bus-width : 8 or 16 bus width if not present 8
> > - nand-on-flash-bbt: boolean to enable on flash bbt option if not present false
>
> Hm.. when was this proposal agreed? It seems I've missed the
> discussion...
>
> FWIW, we've already proposed an equivalent one, but it received no
> feedback from the devicetree maintainers:

Sorry, binding review has become a huge undertaking.

>
> http://comments.gmane.org/gmane.linux.drivers.devicetree/58764
>
> Maybe we can discuss about it now?
>
> nand-ecc-strength : integer ECC required strength.
> nand-ecc-size : integer step size associated to the ECC strength.

I'm okay with either, but the above binding is indeed more readable.

g.


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