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Date: Wed, 7 Mar 2012 13:45:48 +0100 (CET)
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
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To: Russell King - ARM Linux <linux@arm.linux.org.uk>
cc: Vinod Koul <vinod.koul@intel.com>, linux-kernel@vger.kernel.org,
        "'Jassi Brar'" <jassisinghbrar@gmail.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        Magnus Damm <magnus.damm@gmail.com>, Paul Mundt <lethal@linux-sh.org>
Subject: Re: [PATCH/RFC] dmaengine: add a slave parameter to __dma_request_channel()
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On Wed, 7 Mar 2012, Guennadi Liakhovetski wrote:

> 2. (goal: eliminate filter function look-ups) proposed by Linus W
> 
> (a) client issues
> 	dma_request_slave_channel(dev, "MMC-RX")
> (b) the dmaengine core scans a platform-provided list of channel mappings 
>     and picks up _the_ correct channel (****)

I think, this could work well with Russell's idea to implement virtual DMA 
channels centrally in dmaengine core.

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/