Re: [PATCH 06/13] DMAENGINE: driver for the ARM PL080/PL081 PrimeCells

From: Maurus Cuelenaere
Date: Tue Jun 15 2010 - 07:17:40 EST

Op 15-06-10 12:45, Jassi Brar schreef:
> On Tue, Jun 15, 2010 at 7:25 PM, Kukjin Kim <> wrote:
>> Linus Walleij wrote:
>>> This creates a DMAengine driver for the ARM PL080/PL081 PrimeCells
>>> based on the implementation earlier submitted by Peter Pearse.
>>> This is working like a charm for memcpy on the PB11MPCore, but
>>> slave DMA to devices is still not working.
>>> This DMA controller is used in mostly unmodified form in the ARM
>>> RealView and Versatile platforms, in the ST-Ericsson Nomadik, and
>>> in the ST SPEAr platform.
>>> It has been converted to use the header from the Samsung PL080
>>> derivate instead of its own defintions, and can potentially support
>>> several controllers in the same system.
>>> Cc: Peter Pearse <peter.pearse@xxxxxxx>
>>> Cc: Ben Dooks <ben-linux@xxxxxxxxx>
>>> Cc: Kukjin Kim <>
>> Looks good, but please give me some time to test on the board(SMDK6410).
>> If any problem, let you know. Of course no problem, will ack.
> Samsung doesn't use the DMA API, so this driver is unlikely to work.

It doesn't indeed, but it could be adapted to be a wrapper around the DMA engine API.
Or even better, the drivers could be adapted to use that API.
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