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(parent: 856baec) | 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)
commit502a3a3910df3dc6db17e9f04a026df9edb58129
tree601afc066d0daed0a5a4d5577c9541f6b2397405tree | snapshot
parent856baeca1208fa21126b7ed781b67069e9e09e2dcommit | 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: 2a14e5d ("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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