tree faf7202a17ebabad17fa449c6e300d93808af1ce
parent a7267831565030ab94dab76eb1afe5d4b63a1009
author Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> 1427869365 +0900
committer Vinod Koul <vinod.koul@intel.com> 1427959652 +0530

dmaengine: usb-dmac: Add Renesas USB DMA Controller (USB-DMAC) driver

This DMAC is Renesas USB high-speed module DMA controller that
supports slave transfer.

This USB-DMAC has similar register sets with R-Car Gen2 DMAC, but
the USB-DMAC has specific registers to control the USB transactions.
If this code is added into the rcar-dmac driver, it will become
unreadable. So, this driver is independent from the rcar-dmac.

And, this USB-DMAC uses virt-dma infrastructure.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>