From: Boris BREZILLON <b.brezillon.dev-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: "Gupta, Pekon" <pekon-l0cyMroinI0@public.gmane.org>,
Ezequiel Garcia
<ezequiel.garcia-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Ian Campbell
<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>,
Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
Brian Norris
<computersforpeace-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
Thomas Petazzoni
<thomas.petazzoni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
Gregory Clement
<gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
Seif Mazareeb <seif-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>,
Lior Amsalem <alior-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>,
Grant Likely
<grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Subject: Re: [RFC/PATCH 1/1] mtd: nand: Add a devicetree binding for ECC strength and ECC step size
Date: Tue, 11 Feb 2014 16:56:33 +0100 [thread overview]
Message-ID: <52FA4831.20504@gmail.com> (raw)
In-Reply-To: <20980858CB6D3A4BAE95CA194937D5E73EA6F815-yXqyApvAXouIQmiDNMet8wC/G2K4zDHf@public.gmane.org>
Hi Gupta,
On 11/02/2014 16:49, Gupta, Pekon wrote:
> Hi Ezequiel,
>
>> From: Ezequiel Garcia [mailto:ezequiel.garcia-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org]
>>> diff --git a/Documentation/devicetree/bindings/mtd/nand.txt b/Documentation/devicetree/bindings/mtd/nand.txt
>>> index 03855c8..683a310 100644
>>> --- a/Documentation/devicetree/bindings/mtd/nand.txt
>>> +++ b/Documentation/devicetree/bindings/mtd/nand.txt
>>> @@ -3,5 +3,9 @@
>>> - nand-ecc-mode : String, operation mode of the NAND ecc mode.
>>> Supported values are: "none", "soft", "hw", "hw_syndrome", "hw_oob_first",
>>> "soft_bch".
>>>
> Should nand-ecc-mode also be marked as <deprecated>, and but we continue
> supporting it in kernel code ? If yes, then what is the life-time of these
> <deprecated> bindings. I mean exactly how many kernel versions should
> continue support deprecated bindings ?
What do you mean by deprecated ? How would a NAND flash controller
driver choose amongs
its supported NAND ecc modes if we remove this property ?
Is there another patch series removing this property in the wild ?
>
>>> +- nand-ecc-strength : integer ECC required strength.
> With recent patches from 'Boris BREZILLON <b.brezillon.dev-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>'
> "[RFC PATCH] mtd: add per NAND partition ECC config"
> Would you like 'nand-ecc-strength' to be per partition based ?
I don't think we should rely on this for the moment: I'm still working
on it but it's far from stable.
Moreover, we can keep a default ecc mode for the NAND chip and
partitions will inherit this ECC
mode when they do not specify any specific ECC config.
Best Regards,
Boris
>
> with regards, pekon
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next prev parent reply other threads:[~2014-02-11 15:56 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-17 12:13 [RFC/PATCH 0/1] mtd: Add NAND ECC devicetree binding Ezequiel Garcia
[not found] ` <1389960820-18696-1-git-send-email-ezequiel.garcia-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-01-17 12:13 ` [RFC/PATCH 1/1] mtd: nand: Add a devicetree binding for ECC strength and ECC step size Ezequiel Garcia
[not found] ` <1389960820-18696-2-git-send-email-ezequiel.garcia-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-02-11 14:19 ` Ezequiel Garcia
2014-02-11 15:49 ` Gupta, Pekon
[not found] ` <20980858CB6D3A4BAE95CA194937D5E73EA6F815-yXqyApvAXouIQmiDNMet8wC/G2K4zDHf@public.gmane.org>
2014-02-11 15:56 ` Boris BREZILLON [this message]
2014-02-11 16:08 ` Ezequiel Garcia
2014-02-12 8:00 ` Brian Norris
2014-02-12 17:32 ` [RFC/PATCH 1/1] mtd: nand: Add a devicetree binding for ECC strength and ECC step sizeç Ezequiel Garcia
2014-01-17 17:58 ` [RFC/PATCH 0/1] mtd: Add NAND ECC devicetree binding Gupta, Pekon
[not found] ` <20980858CB6D3A4BAE95CA194937D5E73EA66555-yXqyApvAXouIQmiDNMet8wC/G2K4zDHf@public.gmane.org>
2014-01-17 20:33 ` Ezequiel Garcia
2014-01-20 6:21 ` Gupta, Pekon
[not found] ` <20980858CB6D3A4BAE95CA194937D5E73EA67E79-yXqyApvAXouIQmiDNMet8wC/G2K4zDHf@public.gmane.org>
2014-01-20 17:03 ` Ezequiel Garcia
2014-02-12 7:44 ` Brian Norris
2014-01-20 19:48 ` Brian Norris
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