[PATCH 3/3] [POWERPC] Add docs for Freescale DMA & DMA channel device tree nodes

[Timur Tabi]

Scott Wood wrote:

> I don't see any justification for having such a property in the parent node,
> though.

The SSI needs to know which DMA controller is #0 and which one is #1.

I literally program the SSI and the GUTS registers with the DMA controller and 
channels numbers.  I need to know which one is which!

-- 
Timur Tabi
Linux Kernel Developer @ Freescale