These drivers set the DMA_INTERRUPT capability bit when requesting a DMA
controller channel. This was historical, and is no longer needed.

Recent changes to the drivers/dma/fsldma.c driver have removed support
for this flag. This makes the carma drivers unable to find a DMA channel
with the required capabilities.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

... by 6 months
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

fixup usage of dma direction by introducing dma_transfer_direction,
this patch moves carma drivers to use new enum
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
CC Ira W. Snyder <iws@ovro.caltech.edu>

This adds support for programming the data processing FPGAs on the OVRO
CARMA board. These FPGAs have a special programming sequence that
requires that we program the Freescale DMA engine, which is only
available inside the kernel.
Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>