linux-kernel - Re: [PATCH 2/2] Documentation: devicetree: Add bindings for Wi2Wi w2sg0004 gps

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Message-ID: <20141027093126.GC9807@amd>
Date:	Mon, 27 Oct 2014 10:31:26 +0100
From:	Pavel Machek <pavel@....cz>
To:	"Dr. H. Nikolaus Schaller" <hns@...delico.com>
Cc:	Mark Rutland <mark.rutland@....com>,
	Marek Belisko <marek@...delico.com>,
	"arnd@...db.de" <arnd@...db.de>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	Pawel Moll <Pawel.Moll@....com>,
	"ijc+devicetree@...lion.org.uk" <ijc+devicetree@...lion.org.uk>,
	"galak@...eaurora.org" <galak@...eaurora.org>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	NeilBrown <neilb@...e.de>, linux-serial@...r.kernel.org
Subject: Re: [PATCH 2/2] Documentation: devicetree: Add bindings for Wi2Wi
 w2sg0004 gps


> > I think we just disagree about implementing a version that “works” in a quite specific
> > setup (there are necessary assumptions about OMAP pinmux and omap-serial) with
> > existing APIs versus a general one that might need a lot of changes outside the driver
> > and introduce new APIs.
> 
> After re-thinking what we have discussed so far (and considering other recommendations
> I have received off-list) I currently see these options/questions:
> 
> * who could modify the serial drivers and APIs so that this driver can become
>   a subnode (“bus client”) of an UART? How long does it take to
> become available?

I believe that is called "tty line discipline".

> * would it be an option to simply rename the driver to “w2sg0004-power”
>   to make clear that it is not at all related to the UART data communication
>   channel but only controlling the power of the w2sg0004 chip?

Sounds sane.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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