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 for linux-mtd@lists.infradead.org; Fri, 13 Jul 2012 15:40:17 +0000
From: Marek Vasut <marex@denx.de>
To: Huang Shijie <shijie8@gmail.com>
Subject: Re: [PATCH] mtd: add a new macro about the subpage write
Date: Fri, 13 Jul 2012 17:40:10 +0200
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Cc: dedekind1@gmail.com, Jan Weitzel <j.weitzel@phytec.de>,
 Huang Shijie <b32955@freescale.com>, linux-mtd@lists.infradead.org,
 Scott Wood <scottwood@freescale.com>,
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Dear Huang Shijie,

> On Fri, Jul 13, 2012 at 6:35 AM, Marek Vasut <marex@denx.de> wrote:
> > Dear Huang Shijie,
> > 
> >> Hi Brian:
> >> > Wood [1]; I don't see a good reason not to just kill the
> >> > NAND_CHIPOPTIONS_MSK instead of adding more flags. As long as we
> >> > perform a few sanity tests, I think it'd be safe.
> >> 
> >> I think it's more clear in logic to add this new macro:
> >>     The NAND_NO_SUBPAGE_WRITE can be used only by the MLC nands which do
> >> 
> >> no support the subpage write;
> >> 
> >>     The NAND_CONTROLLER_NO_SUBPAGE_WRITE only used by the nand
> >> 
> >> controller such as gpmi nand.
> > 
> > It's not clearer at all. It's just more error-prone.
> 
> ok, thanks. But I do not how to fix it now. I hope some one could give a
> patch.

Why not remove the mask?

> Best Regards
> Huang Shijie
> 
> >> But I will be happy if you submit a patch to fix this issue by removing
> >> the NAND_CHIPOPTIONS_MSK.
> > 
> > I'd be happy if the GPMI NAND driver was properly fixed, 6 months after
> > reporting this bug, which is quite critical as UBI doesn't work because
> > of that and it's being silently ignored.
> > 
> >> thanks
> >> Huang Shijie
> > 
> > Best regards,
> > Marek Vasut

Best regards,
Marek Vasut