linux-kernel - Re: [PATCH/RFC] dmaengine: add a slave parameter to __dma_request

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Message-ID: <1331520476.4657.79.camel@vkoul-udesk3>
Date:	Mon, 12 Mar 2012 08:17:56 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Guennadi Liakhovetski <g.liakhovetski@....de>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	linux-kernel@...r.kernel.org,
	'Jassi Brar' <jassisinghbrar@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Magnus Damm <magnus.damm@...il.com>,
	Paul Mundt <lethal@...ux-sh.org>
Subject: Re: [PATCH/RFC] dmaengine: add a slave parameter to
 __dma_request_channel()

On Fri, 2012-03-09 at 13:20 +0100, Guennadi Liakhovetski wrote:
> It can be made to work as long as there's only one DMAC group with 
> configurable channels and all other DMACs are dedicated to specific 
> peripherals, yes. I don't know whether there are already now or are 
> approaching any platforms with multiple reconfigurable groups. 
And that is what I am talking about.

Having specific channel mapping given by platform for all channels which
are to be used dedicated. And a pool of channels which can be used by
anyone (if they can be) on a platform.

Does this proposal sound good for others as well. I think we can target
this for next merge cycle, we are too late for the current one.

-- 
~Vinod

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