tree e662a6492370232e008d405e4ed7bfa4be0aea2e
parent cc60f8878eab892c03d06b10f389232b9b66bd83
author Ira Snyder <iws@ovro.caltech.edu> 1285847204 +0000
committer Dan Williams <dan.j.williams@intel.com> 1286487700 -0700

dma: add support for scatterlist to scatterlist copy

This adds support for scatterlist to scatterlist DMA transfers. A
similar interface is exposed by the fsldma driver (through the DMA_SLAVE
API) and by the ste_dma40 driver (through an exported function).

This patch paves the way for making this type of copy operation a part
of the generic DMAEngine API. Futher patches will add support in
individual drivers.

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>