[PATCH v3 2/2] fsldma: Add DMA_SLAVE support

[Li Yang]

On Tue, Jun 23, 2009 at 5:20 AM, Dan Williams<dan.j.williams at intel.com> wrote:
> On Fri, 2009-06-19 at 12:31 -0700, Ira Snyder wrote:
>> Use the DMA_SLAVE capability of the DMAEngine API to copy/from a
>> scatterlist into an arbitrary list of hardware address/length pairs.
>>
>> This allows a single DMA transaction to copy data from several different
>> devices into a scatterlist at the same time.
>>
>> This also adds support to enable some controller-specific features such as
>> external start and external pause for a DMA transaction.
>>
>> Signed-off-by: Ira W. Snyder <iws at ovro.caltech.edu>
>> ---
>>
>> This patch depends on the "fsldma: split apart external pause and
>> request count features" patch.
>>
>> After discussion with Dan Williams, this is the third version of the
>> DMA_SLAVE API for the Freescale DMA controller. I've tested it heavily
>> with both drivers I have written against this API, an FPGA programmer
>> and an FPGA data grabber.
>>
>> Kumar, Dan asked me to add you to the CC list, so you can have a look at
>> this patch before he adds it to his tree.
>>
>> The other two small patches I posted earlier are very helpful in testing
>> this functionality. They make the fsldma driver leave the BWC (bandwidth
>> control) bits alone on the 83xx controller, as well as making the
>> external start feature available on 83xx.
>>
>
> Kumar, Leo,
>
> Can I get your acked-by's for the current state of async_tx.git/next?  I
> just pushed out Ira's latest so it may take a moment to mirror out.

Acked-by: Li Yang <leoli at freescale.com>

However, the addition of arch/powerpc/include/asm/fsldma.h still needs
the ack from Kumar.  It doesn't seem to be a common practice though.

- Leo