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Message-ID: <20080213090310.0c905397@dhcp-252-066.norway.atmel.com>
Date: Wed, 13 Feb 2008 09:03:10 +0100
From: Haavard Skinnemoen <hskinnemoen@...el.com>
To: "Dan Williams" <dan.j.williams@...el.com>
Cc: linux-kernel@...r.kernel.org,
"Shannon Nelson" <shannon.nelson@...el.com>,
"David Brownell" <david-b@...bell.net>, kernel@...32linux.org,
"Francis Moreau" <francis.moro@...il.com>,
"Paul Mundt" <lethal@...ux-sh.org>,
"Vladimir A. Barinov" <vbarinov@...mvista.com>,
"Pierre Ossman" <drzeus-list@...eus.cx>
Subject: Re: [RFC v3 4/7] dmaengine: Add slave DMA interface
On Wed, 13 Feb 2008 00:21:41 -0700
"Dan Williams" <dan.j.williams@...el.com> wrote:
> On Feb 12, 2008 9:43 AM, Haavard Skinnemoen <hskinnemoen@...el.com> wrote:
> [..]
> > +enum dma_slave_direction {
> > + DMA_SLAVE_TO_MEMORY,
> > + DMA_SLAVE_FROM_MEMORY,
> > +};
>
> Just reuse enum dma_data_direction from the dma-mapping api.
Hmm...ok. That will add two "directions" that are a bit useless in this
context (DMA_BIDIRECTIONAL and DMA_NONE.) But I guess it's still worth
it since we can pass the direction on unchanged when syncing the
buffers.
Haavard
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