linux-kernel - Re: [PATCH 1/2] MTD: cfi_cmdset_0002: Add reboot notifier for AMD flashes

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Date:	Wed, 14 Apr 2010 07:33:12 +0200
From:	Fabio Giovagnini <fabio.giovagnini@...ion-tech.com>
To:	linux-mtd@...ts.infradead.org, dedekind1@...il.com
Cc:	Kevin Cernekee <cernekee@...il.com>, saeed.bishara@...il.com,
	dwmw2@...radead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] MTD: cfi_cmdset_0002: Add reboot notifier for AMD flashes

Exactly!!!!
Why this is requested?
Is it necessary for the best proper woring mode?

Thanks a lot


In data mercoledì 14 aprile 2010 06:57:58, Artem Bityutskiy ha scritto:
: > On Tue, 2010-04-13 at 13:30 -0700, Kevin Cernekee wrote:
> > +static int cfi_amdstd_reset(struct mtd_info *mtd)
> > +{
> > +	struct map_info *map = mtd->priv;
> > +	struct cfi_private *cfi = map->fldrv_priv;
> > +	int i, ret;
> > +	struct flchip *chip;
> > +
> > +	for (i = 0; i < cfi->numchips; i++) {
> > +
> > +		chip = &cfi->chips[i];
> > +
> > +		spin_lock(chip->mutex);
> > +
> > +		ret = get_chip(map, chip, chip->start, FL_SHUTDOWN);
> > +		if (!ret) {
> > +			map_write(map, CMD(0xF0), chip->start);
> > +			chip->state = FL_SHUTDOWN;
> > +			put_chip(map, chip, chip->start);
> > +		}
> > +
> > +		spin_unlock(chip->mutex);
> > +	}
> > +
> > +	return 0;
> > +}
> 
> Kevin, I'd suggest to document why you do this in the code, just for the
> next generation, or for the archaeologists who will dig MTD code in the
> future.
> 

-- 
Fabio Giovagnini

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