tree 04a8451780ebc2b78a76d1991356aa5775049327
parent 4661c9b526c3801827c9456a635671fd98c8e7ed
author Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> 1506505633 +0900
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1507801876 +0200

usb: renesas_usbhs: fix usbhsf_fifo_clear() for RX direction

commit 0a2ce62b61f2c76d0213edf4e37aaf54a8ddf295 upstream.

This patch fixes an issue that the usbhsf_fifo_clear() is possible
to cause 10 msec delay if the pipe is RX direction and empty because
the FRDY bit will never be set to 1 in such case.

Fixes: e8d548d54968 ("usb: renesas_usbhs: fifo became independent from pipe.")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>