commit 4bd0481152d0d5e8326d7e24329b0069713ed718
author Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Mon Jun 06 14:18:07 2011 +0900
committer Greg Kroah-Hartman <gregkh@suse.de> Tue Jun 07 09:10:07 2011 -0700
tree eee0db4a089f8a853305293a72bc10b3d8b8177c
parent e8d548d549688d335236f7f6f8bcee141a207ff8

usb: renesas_usbhs: divide data transfer functions

DMAEngine will be supported to this driver in the future.
Then, both PIO and DMA data transfer method should be supported.
But, the transfer function can returns the result immediately
in PIO version, but it can't in DMA version.
This patch divides data transfer functions into top/bottom half
in preparation for DMAEngine support.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>