Is there a binding for IORESOURCE_DMA population?

[Shawn Guo]

On Sat, Jul 16, 2011 at 08:55:41PM +0800, Tabi Timur-B04825 wrote:
> Arnd Bergmann wrote:
> > Right, this is what I had in mind. I think this is reasonable.
> > If you need so many channels, the device tree will be huge already,
> > so this doesn't add that much bloat either.
> 
> I'm not sure I agree.  It seems that specifying nodes for each DMA channel 
> (virtual or physical) is meaningless because the only property in the node 
> is the "reg", which is really just a cell-index in disguise.
> 
Yes, that's exactly why I do not appreciate the solution.

> My vote is to have a node only for the DMA engine, and let the DMA handle 
> the virtual and physical channels internally.
> 
It's not about virtual or physical channel.  I'm asking suggestion on
how we bind the channel number for each dma client device in device
tree and how they will get the number from device tree when they get
probed.

-- 
Regards,
Shawn