[PATCH] dmaengine: add CSR SiRFprimaII DMAC driver
linus.walleij at linaro.org
Thu Sep 8 14:48:26 EDT 2011
2011/9/8 Arnd Bergmann <arnd at arndb.de>:
> On Thursday 08 September 2011, Barry Song wrote:
>> this filter is used by all drivers with DMA since every dma channel is
>> fixed to be assigned to one device.
> Ok, I see now. I think it would be best to introduce a generic
> 'filter by device tree property' function or alternatively an
> dma_of_request_channel function like this:
You'd have to discuss that with Vinod, the thing is that x86 Atom
systems are using dmaengine for device slave transfers too, and
IIRC these things don't use devicetrees. I may be wrong...
More information about the linux-arm-kernel