linux-kernel - Re: [PATCH v3 2/4] mtd: pxa3xx_nand: add helpers to setup the timings

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Date:	Mon, 19 Oct 2015 11:32:31 +0200
From:	Antoine Tenart <antoine.tenart@...e-electrons.com>
To:	Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
Cc:	Antoine Tenart <antoine.tenart@...e-electrons.com>,
	sebastian.hesselbarth@...il.com,
	ezequiel.garcia@...e-electrons.com, dwmw2@...radead.org,
	computersforpeace@...il.com, zmxu@...vell.com, jszhang@...vell.com,
	linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 2/4] mtd: pxa3xx_nand: add helpers to setup the timings

Ezequiel,

On Sat, Oct 17, 2015 at 10:57:26AM -0300, Ezequiel Garcia wrote:
> On 15 Oct 09:17 AM, Antoine Tenart wrote:
> >  /*
> >   * Set the data and OOB size, depending on the selected
> >   * spare and ECC configuration.
> > @@ -1538,6 +1660,19 @@ KEEP_CONFIG:
> >  	if (nand_scan_ident(mtd, 1, def))
> >  		return -ENODEV;
> >  
> > +	if (!pdata->keep_config) {
> > +		ret = pxa3xx_nand_init(host);
> > +		if (ret) {
> > +			dev_err(&info->pdev->dev, "Failed to init nand: %d\n",
> > +				ret);
> > +			return ret;
> > +		}
> > +	}
> > +
> > +	ret = pxa3xx_nand_config_flash(info);
> > +	if (ret)
> > +		return ret;
> > +
> 
> Does this chunk belong to this patch? It wasn't here in the v2, and I believe
> it's not correct as you end up messing with the NDCR setting even if keep_config
> was passed.

You're right, it should be in "[3/4] mtd: pxa3xx_nand: rework flash
detection and timing setup". I made a mistake reworking the series...

And yes, pxa3xx_nand_config_flash() should be called before
"KEEP_CONFIG:".

Antoine

-- 
Antoine Ténart, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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