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

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Message-ID: <20160509201324.GA9845@rob-hp-laptop>
Date:	Mon, 9 May 2016 15:13:24 -0500
From:	Rob Herring <robh@...nel.org>
To:	Wenyou Yang <wenyou.yang@...el.com>
Cc:	Brian Norris <computersforpeace@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Brown <broonie@...nel.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
	devicetree@...r.kernel.org,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Russell King <linux@....linux.org.uk>,
	Josh Wu <rainyfeeling@...look.com>,
	linux-arm-kernel@...ts.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.

Rob