From mboxrd@z Thu Jan 1 00:00:00 1970 From: Santosh Shilimkar Subject: Re: [PATCH 2/3] mtd: davinci-nand: add dts property for NAND_NO_SUBPAGE_WRITE option Date: Thu, 20 Mar 2014 13:12:35 -0400 Message-ID: <532B2183.2080309@ti.com> References: <1395335184-4745-1-git-send-email-ivan.khoronzhuk@ti.com> <1395335184-4745-3-git-send-email-ivan.khoronzhuk@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1395335184-4745-3-git-send-email-ivan.khoronzhuk@ti.com> Sender: linux-doc-owner@vger.kernel.org To: computersforpeace@gmail.com Cc: Ivan Khoronzhuk , dwmw2@infradead.org, galak@codeaurora.org, robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, rob@landley.net, linux@arm.linux.org.uk, grygorii.strashko@ti.com, devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mtd@lists.infradead.org, Murali Karicheri List-Id: devicetree@vger.kernel.org Boris, On Thursday 20 March 2014 01:06 PM, Ivan Khoronzhuk wrote: > From: Murali Karicheri > > After testing NAND flash with ubifs for k2hk-emv board were committed > that flash doesn't support subpage writing, so we can fix it by > adding a property to disable subpage write. > > Signed-off-by: Murali Karicheri > Signed-off-by: Ivan Khoronzhuk > --- Can you please pick this up for 3.15 fixes ? Ofcourse assuming DT folks are ok with the patch. I can then take patch 1/3 and 3/3 in my 3.15 fixes queue. > Documentation/devicetree/bindings/mtd/davinci-nand.txt | 2 ++ > drivers/mtd/nand/davinci_nand.c | 3 +++ > 2 files changed, 5 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mtd/davinci-nand.txt b/Documentation/devicetree/bindings/mtd/davinci-nand.txt > index cfb18ab..50af930 100644 > --- a/Documentation/devicetree/bindings/mtd/davinci-nand.txt > +++ b/Documentation/devicetree/bindings/mtd/davinci-nand.txt > @@ -53,6 +53,8 @@ Recommended properties : > identifier is saved in OOB area. If not present > false. > > +- ti,davinci-nosubpage-write: disable subpage write for the device > + > Deprecated properties: > > - ti,davinci-ecc-mode: operation mode of the NAND ecc mode. ECC mode > diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c > index 4615d79..3ba058d 100644 > --- a/drivers/mtd/nand/davinci_nand.c > +++ b/drivers/mtd/nand/davinci_nand.c > @@ -581,6 +581,9 @@ static struct davinci_nand_pdata > of_property_read_bool(pdev->dev.of_node, > "ti,davinci-nand-use-bbt")) > pdata->bbt_options = NAND_BBT_USE_FLASH; > + if (of_property_read_bool(pdev->dev.of_node, > + "ti,davinci-no-subpage-write")) > + pdata->options |= NAND_NO_SUBPAGE_WRITE; > } > > return dev_get_platdata(&pdev->dev); >