linux-kernel - Re: [PATCH 2/2] w1: masters: omap_hdq: Add support for 1-wire mode

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Message-ID: <4111301.XAv3eRBo5S@wuerfel>
Date:	Fri, 27 Feb 2015 11:34:22 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Vignesh R <vigneshr@...com>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Evgeniy Polyakov <zbr@...emap.net>,
	Jonathan Corbet <corbet@....net>,
	Paul Walmsley <paul@...an.com>,
	Tony Lindgren <tony@...mide.com>,
	Russell King <linux@....linux.org.uk>,
	NeilBrown <neilb@...e.de>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/2] w1: masters: omap_hdq: Add support for 1-wire mode

On Friday 27 February 2015 16:01:03 Vignesh R wrote:
> On Friday 27 February 2015 03:25 PM, Arnd Bergmann wrote:
> > On Friday 27 February 2015 14:54:17 Vignesh R wrote:
> >> +- compatible : should be "ti,omap3-1w" or "ti,am43xx-hdq"
> >>
> > 
> > Do not use wildcards in the compatible string, use real part numbers
> > if you don't know the actual name of the device.
> 
> 
> The DT node for hdq on AM437x is already present in mainline
> (commit: 741cac5f00beb) and it declares compatibility as
> "ti,am43xx-hdq". Hence, I cannot change into anything different.
> 

No, there is no driver using this device, and the binding was
not documented, so there is no problem in changing it: nobody
will notice a regression when it was never working before.

	Arnd
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