[PATCH 2/6] dmaengine/dw_dmac: Enable resubmission from callback routine.

viresh kumar viresh.kumar at st.com
Tue Apr 19 02:46:43 EDT 2011

On 04/19/2011 12:03 PM, Koul, Vinod wrote:
> On 04/19/2011 11:53 AM, viresh kumar wrote:
>> On 04/19/2011 11:42 AM, Koul, Vinod wrote:
>>> On 04/18/2011 04:20 PM, viresh kumar wrote:
>> Vinod,
>> I initiated this discussion few days back on a separate thread:
>> http://www.spinics.net/lists/arm-kernel/msg121139.html
>> And so implemented this.
> Ahhh, on the road, catching up on email...
> This was a dma engine requirement, not absolute for slave-dma.
> But would be good idea to resist this. What is your reason for this?

Mainline drivers using dmaengine are already submitting new transfers from
callback routines. For example: amba-pl011.
And i have to use pl011 with DMA, so faced this issue in dw_dmac.


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