linux-kernel - Re: [PATCH v12 05/11] edma: config: Enable config options for EDMA

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Message-Id: <201306212044.26677.arnd@arndb.de>
Date:	Fri, 21 Jun 2013 20:44:26 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Joel A Fernandes <agnel.joel@...il.com>
Cc:	Sekhar Nori <nsekhar@...com>, Joel A Fernandes <joelagnel@...com>,
	Tony Lindgren <tony@...mide.com>,
	Matt Porter <matt@...orter.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Benoit Cousson <b-cousson@...com>,
	Russell King <linux@....linux.org.uk>,
	Rob Landley <rob@...dley.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jason Kridner <jkridner@...gleboard.org>,
	Koen Kooi <koen@...gleboard.org>,
	Devicetree Discuss <devicetree-discuss@...ts.ozlabs.org>,
	Linux OMAP List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	Linux DaVinci Kernel List 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Documentation List <linux-doc@...r.kernel.org>,
	Linux MMC List <linux-mmc@...r.kernel.org>,
	Linux SPI Devel List 
	<spi-devel-general@...ts.sourceforge.net>
Subject: Re: [PATCH v12 05/11] edma: config: Enable config options for EDMA

On Friday 21 June 2013, Joel A Fernandes wrote:
> I think we are talking about different things, I agree the 'select
> DMADEVICES' can be dropped but lets please keep the default y option
> (not adding new select statements, just saying that if someone select
> DMADEVICES in menuconfig and if they're ARCH_OMAP=1 , then default to
> EDMA). This will simply allow people to have a default. Thanks.

Yes, that's ok.

Also, if the driver doesn't strictly depend on these platforms but
can build on anything, I would write it as

config TI_EDMA
        tristate "TI EDMA support"
        default m if 'ARCH_DAVINCI || ARCH_OMAP1 || ARCH_OMAP2
        select DMA_ENGINE
        select DMA_VIRTUAL_CHANNELS

	Arnd
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