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Date:	Fri, 1 Apr 2016 09:39:38 +0800
From:	Shawn Guo <shawnguo@...nel.org>
To:	Tim Harvey <tharvey@...eworks.com>
Cc:	Guenter Roeck <linux@...ck-us.net>,
	Akshay Bhat <akshay.bhat@...esys.com>,
	Fabio Estevam <festevam@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Wim Van Sebroeck <wim@...ana.be>,
	linux-watchdog@...r.kernel.org, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Sascha Hauer <kernel@...gutronix.de>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Justin Waters <justin.waters@...esys.com>,
	Lucas Stach <l.stach@...gutronix.de>, Stefan Roese <sr@...x.de>
Subject: Re: [PATCH v4 1/2] watchdog: imx2_wdt: add external reset support
 via 'ext-reset-output' dt prop

On Thu, Mar 31, 2016 at 11:01:58AM -0700, Tim Harvey wrote:
> On Wed, Mar 30, 2016 at 6:57 PM, Shawn Guo <shawnguo@...nel.org> wrote:
> > On Wed, Mar 30, 2016 at 02:09:16PM -0700, Guenter Roeck wrote:
> >> The question was if the property name should be ext-reset-output or
> >> fsl,ext-reset-output. In my opinion, it should be fsl,ext-reset-output
> >> because it is not a generic property. Tim disagrees.
> >>
> 
> Guenter,
> 
> My issue regarding the vendor prefix was not a hard dissagreement but
> was more about me understanding the rational behind using vendor
> prefixes. In this case the imx2_wdt driver 'is' a vendor specific
> driver as its compatible strings are prefixed with 'fsl,' so isn't
> 'any' property added to devicetree/bindings/watchdog/fsl-imx-wdt.txt
> inherently a vendor specific properly already? I assume that is why
> the 'big-endian' property isn't 'fsl,big-endian'.

We should read it as that 'big-endian' is a generic property defined by
generic bindings - bindings/regmap/regmap.txt, and we just reference the
bindings in fsl-imx-wdt.txt.

Taking mmc bindings as example, bindings/mmc/mmc.txt defines generic
bindings, while bindings/mmc/fsl-imx-esdhc.txt defines i.MX vendor
specific properties, which should ideally have vendor prefix.

Shawn

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