linux-kernel - Re: [PATCH v3 05/11] memory: add Atmel EBI (External Bus Interface) driver

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Date:	Tue, 02 Dec 2014 10:18:45 +0100
From:	Alexander Stein <alexander.stein@...tec-electronic.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Andrew Victor <linux@...im.org.za>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	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>, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Jean-Jacques Hiblot <jjhiblot@...phandler.com>
Subject: Re: [PATCH v3 05/11] memory: add Atmel EBI (External Bus Interface) driver

On Monday 01 December 2014 17:17:30, Arnd Bergmann wrote:
> On Monday 01 December 2014 11:50:06 Boris Brezillon wrote:
> > 
> > I don't have a strong opinion regarding where this driver should
> > live (I even considered putting it in drivers/bus) :-).
> > But note that there are other "external memory interface" drivers
> > in drivers/memory too: TI AEMIF and Marvell DEVBUS  ;-).
> > 
> > Does anyone else think this driver should go in drivers/bus ?
> > 
> 
> I think drivers/memory is better.

I don't mind if it's drivers/bus or drivers/memory. But I'm wondering: When is a driver a bus driver when it is a memory driver? See imx-weim and atmel-ebi. Apparently both add support for devices attached on a bus which can be accessed through memory addresses :)

Best regards,
Alexander
-- 
Dipl.-Inf. Alexander Stein

SYS TEC electronic GmbH
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Tel.: 03765 38600-1156
Fax: 03765 38600-4100
Email: alexander.stein@...tec-electronic.com
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