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(parent: 894f2fc) | patch
usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer
authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Thu, 10 Mar 2016 02:30:15 +0000 (11:30 +0900)
committerFelipe Balbi <felipe.balbi@linux.intel.com>
Wed, 30 Mar 2016 13:02:53 +0000 (16:02 +0300)
commit6490865c67825277b29638e839850882600b48ec
tree601afc066d0daed0a5a4d5577c9541f6b2397405tree | snapshot
parent894f2fc44f2f3f48c36c973b1123f6ab298be160commit | diff
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>
drivers/usb/renesas_usbhs/fifo.c diff | blob | history
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