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Date: Mon, 28 Apr 2014 23:37:32 +0800
From: Huang Shijie <shijie8@gmail.com>
To: Graham Moore <ggrahammoore@gmail.com>
Subject: Re: [PATCH V3] Add support for flag status register on Micron chips.
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Cc: Marek Vasut <marex@denx.de>,
 Geert Uytterhoeven <geert+renesas@linux-m68k.org>,
 Yves Vandervennet <rocket.yvanderv@gmail.com>,
 Artem Bityutskiy <artem.bityutskiy@linux.intel.com>,
 Sascha Hauer <s.hauer@pengutronix.de>, Jingoo Han <jg1.han@samsung.com>,
 linux-kernel@vger.kernel.org, Huang Shijie <b32955@freescale.com>,
 linux-mtd@lists.infradead.org, Graham Moore <grmoore@altera.com>,
 Alan Tull <atull@altera.com>, Sourav Poddar <sourav.poddar@ti.com>,
 Brian Norris <computersforpeace@gmail.com>,
 Insop Song <insop.song@gainspeed.com>, David Woodhouse <dwmw2@infradead.org>,
 Dinh Nguyen <dinguyen@altera.com>
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On Mon, Apr 28, 2014 at 09:22:58AM -0500, Graham Moore wrote:
> On Mon, Apr 28, 2014 at 2:06 AM, Huang Shijie <b32955@freescale.com> wrote:
> > On Mon, Apr 28, 2014 at 07:06:17AM +0200, Marek Vasut wrote:
> >>
> >> Two things competing over the same pointer looks misdesigned to me. I will need
> >> to dig into this one more time ...
> > Please refer to the code for NAND chip, the nand_get_flash_type() :
> >
> > -----------------------------------------------------------
> >         /* Do not replace user supplied command function! */
> >         if (mtd->writesize > 512 && chip->cmdfunc == nand_command)
> >                 chip->cmdfunc = nand_command_lp;
> > -----------------------------------------------------------
> >
> > It uses the same logic:
> >         " Do not replace user supplied command function!"
> >
> > thanks
> > Huang Shijie
> 
> I would like to set the @wait_till_ready in m25p80.c, because the
> USE_FSR flag is only for Micron chips.  But the m25p80 driver doesn't
m25p80.c is not the right place. 

we should put these code in the spi-nor.c

thanks
Huang Shijie