[PATCH 0/2] mtd: atmel_nand: remove compatible "atmel,sama5d4-nfc"

[Yang, Wenyou]

> -----Original Message-----
> From: Rob Herring [mailto:robh at kernel.org]
> Sent: 2016年5月10日 4:13
> To: Yang, Wenyou <Wenyou.Yang at atmel.com>
> Cc: Brian Norris <computersforpeace at gmail.com>; David Woodhouse
> <dwmw2 at infradead.org>; Pawel Moll <pawel.moll at arm.com>; Mark Brown
> <broonie at kernel.org>; Ian Campbell <ijc+devicetree at hellion.org.uk>; Kumar
> Gala <galak at codeaurora.org>; linux-kernel at vger.kernel.org; linux-
> mtd at lists.infradead.org; devicetree at vger.kernel.org; Ferre, Nicolas
> <Nicolas.FERRE at atmel.com>; Alexandre Belloni <alexandre.belloni at free-
> electrons.com>; Jean-Christophe Plagniol-Villard <plagnioj at jcrosoft.com>;
> Russell King <linux at arm.linux.org.uk>; Josh Wu <rainyfeeling at outlook.com>;
> linux-arm-kernel at lists.infradead.org
> Subject: Re: [PATCH 0/2] mtd: atmel_nand: remove compatible "atmel,sama5d4-
> nfc"
> 
> On Mon, May 09, 2016 at 02:51:17PM +0800, Wenyou Yang wrote:
> > It is a datasheet bug, for current SoCs, the RB_EDGE3(i.e. bit 27) of
> > HSMC_SR register does not exist, the RB_EDGE0 (i.e. bit 24) is the
> > ready/busy line edge status bit. So the compatible "atmel,sama5d4-nfc"
> > is unneeded.
> 
> The compatible is needed if the SOC still exists. You can list both for the sama5d4
> if the block is the same.

The NFC IP of SAMA5D4 is same as SAMA5D2's, SAMA5D4 hase this issue.  This compatible can be removed. 


Best Regards,
Wenyou Yang