[PATCH 1/3] dmaengine: add TI EDMA DMA engine driver

[Matt Porter]

On Thu, Aug 16, 2012 at 05:44:29PM -0400, Matt Porter wrote:
> Add a DMA engine driver for the TI EDMA controller. This driver
> is implemented as a wrapper around the existing DaVinci private
> DMA implementation. This approach allows for incremental conversion
> of each peripheral driver to the DMA engine API. The EDMA driver
> supports slave transfers but does not yet support cyclic transfers.

I got my hands on a AM18x WL12xx module so I could test MMC1 and this
exposed some bugs in the driver's handling of the second EDMA controller
case. DA850/OMAP-L138/AM1x have this second EDMA controller. I've
addressed this in v2 which will be posted shortly.

I'm expecting to receive a DM646x EVM RSN so I can cover testing that
part as well.

-Matt