Re: [PATCH/RFC 0/5] R-Car Gen2 DMAC hardware descriptor list support

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Hi Morimoto-san,

On Wednesday 23 July 2014 16:56:56 Kuninori Morimoto wrote:

[snip]

> > > 2. cyclic transfer doesn't work
> > > 
> > >    I got attached error.
> > 
> > I'm not too surprised as I haven't tested cyclic DMA yet :-) I'll fix it.
> 
> Hehehe :)
> 
> Please let me know if you need my help

As explained in another e-mail I've run into issues with sleep operations in 
atomic context, and I believe we first need to clarify the DMA engine API 
requirements in term of contexts. Your opinion would be appreciated.

-- 
Regards,

Laurent Pinchart

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