linux-kernel - Re: dmaengine.c: question about device_alloc_chan

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Message-ID: <48D3B880.3070607@freescale.com>
Date:	Fri, 19 Sep 2008 09:34:40 -0500
From:	Timur Tabi <timur@...escale.com>
To:	Haavard Skinnemoen <haavard.skinnemoen@...el.com>
CC:	Dan Williams <dan.j.williams@...el.com>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: dmaengine.c: question about device_alloc_chan_resources

Haavard Skinnemoen wrote:

> Yes, or maybe provide an interface for simply requesting a channel
> without having to register any callbacks. 

I could use this feature.  The sound drivers for our MPC8610 processor use DMA,
but the drivers need to control the DMA hardware directly, so I can't use
dmaengine.  I would like to be able to just reserve the channels and program
them as I see fit.

-- 
Timur Tabi
Linux kernel developer at Freescale
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