linux-kernel - Re: [PATCH v2 1/2] mtd: nand: support ONFI timing mode retrieval for non-ONFI NANDs

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Message-ID: <20140922201315.022fefea@bbrezillon>
Date:	Mon, 22 Sep 2014 20:13:15 +0200
From:	Boris BREZILLON <boris.brezillon@...e-electrons.com>
To:	Brian Norris <computersforpeace@...il.com>
Cc:	David Woodhouse <dwmw2@...radead.org>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-sunxi@...glegroups.com,
	Yassin Jaffer <yassinjaffer@...il.com>
Subject: Re: [PATCH v2 1/2] mtd: nand: support ONFI timing mode retrieval
 for non-ONFI NANDs

On Mon, 22 Sep 2014 10:58:34 -0700
Brian Norris <computersforpeace@...il.com> wrote:

> On Mon, Sep 22, 2014 at 04:25:10PM +0200, Boris BREZILLON wrote:
> > Add an onfi_timing_mode_default field to nand_chip and nand_flash_dev in
> > order to support NAND timings definition for non-ONFI NAND.
> > 
> > NAND that support better timings mode than the default one have to define
> > a new entry in the nand_ids table.
> > 
> > The default timing mode should be deduced from timings description from
> > the datasheet and the ONFI specification
> > (www.onfi.org/~/media/ONFI/specs/onfi_3_1_spec.pdf, chapter 4.15
> > "Timing Parameters").
> > You should choose the closest mode that fit the timings requirements of
> > your NAND chip.
> > 
> > Signed-off-by: Boris BREZILLON <boris.brezillon@...e-electrons.com>
> 
> You have some (new?) checkpatch warnings:
> 

Sorry for that. I just sent a new version fixing those warnings.

Best Regards,

Boris

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