tree 601afc066d0daed0a5a4d5577c9541f6b2397405
parent 894f2fc44f2f3f48c36c973b1123f6ab298be160
author Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> 1457577015 +0900
committer Felipe Balbi <felipe.balbi@linux.intel.com> 1459342973 +0300

usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer

This patch adds a code to surely disable TX IRQ of the pipe before
starting TX DMAC transfer. Otherwise, a lot of unnecessary TX IRQs
may happen in rare cases when DMAC is used.

Fixes: e73a989 ("usb: renesas_usbhs: add DMAEngine support")
Cc: <stable@vger.kernel.org> # v3.1+
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>