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Date: Fri, 7 Oct 2011 16:57:03 +0530
Message-ID: <CAJe_ZhdFA641AzmEmYaz++iRNYQmrHDFmAWOkrwmR_h2ie176g@mail.gmail.com>
Subject: Re: [PATCHv4] DMAEngine: Define interleaved transfer request api
From: Jassi Brar <jaswinder.singh@linaro.org>
To: Vinod Koul <vinod.koul@intel.com>
Cc: "Williams, Dan J" <dan.j.williams@intel.com>,
        Russell King <rmk@arm.linux.org.uk>, Barry Song <21cnbao@gmail.com>,
        linux-kernel@vger.kernel.org,
        DL-SHA-WorkGroupLinux <workgroup.linux@csr.com>,
        Dave Jiang <dave.jiang@intel.com>
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On 7 October 2011 11:15, Vinod Koul <vinod.koul@intel.com> wrote:

> Thru this patch Jassi gave a very good try at merging DMA_SLAVE and
> memcpy, but more we debate this, I am still not convinced about merging
> memcpy and DMA_SLAVE yet.
>
Nobody is merging memcpy and DMA_SLAVE right away.
The api's primary purpose is to support interleave transfers.
Possibility to merge other prepares into this is a side-effect.

> I would still argue that if we split this on same lines as current
> mechanism, we have clean way to convey all details for both cases.
>
Do you mean to have separate interleaved transfer apis for Slave
and Mem->Mem ? Please clarify.