Re: [PATCH 00/13] pxa3xx patches to support mvebu builds

Daniel Mack
2013-07-30T08:02:29Z

On 30.07.2013 09:53, Thomas Petazzoni wrote:
> On Tue, 30 Jul 2013 09:43:54 +0200, Daniel Mack wrote:
>> Interesting, because I'm working on a dmaengine implementation for PXA
>> right now. I'm not even half through, but I'm making progress, and I'm
>> not sure yet how to merge it. Because there won't be any migration path,
>> it'll be a bigger set that has to go in in one in order to prevent build
>> breakage.
>
> Aren't drivers/dma/mmp_pdma.c and drivers/dma/mmp_tdma.c already
> dmaengine drivers for PXA ?

Yes, I saw the pdma driver as well, after I started my own
implementation. However, the tree is full of users of the proprietary
API, and moving them over won't be gap-less.

> Considering the amount of time it will take for PXA to migrate over to
> the dmaengine API, I think we'd want those clean up patches to go in
> first, so that in parallel to the work you're doing on PXA dmaengine
> usage, we can move forward with improving the pxa3xx_nand driver to
> make it usable on Armada 370/XP.

Ok, fine. I'll rework my set on top of Ezequiel's then.

Thanks,
Daniel