linux-kernel - Re: [RFC 1/8] serial:st-asc: Add ST ASC driver.

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Message-ID: <20130508155301.GB27273@kroah.com>
Date:	Wed, 8 May 2013 08:53:01 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
Cc:	Arnd Bergmann <arnd@...db.de>,
	Srinivas KANDAGATLA <srinivas.kandagatla@...com>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Will Deacon <will.deacon@....com>, jslaby@...e.cz,
	Russell King <linux@....linux.org.uk>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Nicolas Pitre <nico@...aro.org>, linux-doc@...r.kernel.org,
	Stephen Gallimore <stephen.gallimore@...com>,
	linux-serial@...r.kernel.org, Jason Cooper <jason@...edaemon.net>,
	devicetree-discuss@...ts.ozlabs.org,
	Rob Herring <rob.herring@...xeda.com>,
	Stuart Menefy <stuart.menefy@...com>,
	Stephen Warren <swarren@...dia.com>,
	Dong Aisheng <dong.aisheng@...aro.org>,
	linux-arm-kernel@...ts.infradead.org,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC 1/8] serial:st-asc: Add ST ASC driver.

On Wed, May 08, 2013 at 05:40:57PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 08:34 Wed 08 May     , Greg KH wrote:
> > On Wed, May 08, 2013 at 04:34:43PM +0200, Arnd Bergmann wrote:
> > > > +#define ASC_MAJOR		204
> > > > +#define ASC_MINOR_START		40
> > > 
> > > I don't know what the current policy is on allocating major/minor numbers,
> > > but I'm sure you cannot just reuse one that is already used.
> > 
> > I agree, why are you trying to create a new tty device name?  Can't you
> > use the existing ttyS name and minor number as you will not have any
> > other type of serial device on this system?
> 
> Greg on ST STB for more than 10 years we use ttyASC I'll prefer ttySx

For 10+ years you have had an out-of-tree serial driver?  What
major/minor numbers did you use for it?

> on the DTB SoC you have one one IP present the st,asc

I don't understand, what do you mean by this?

confused,

greg k-h
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