xhci: Increase reset timeout for Renesas 720201 host.
authorSarah Sharp <sarah.a.sharp@linux.intel.com>
Mon, 23 Jul 2012 23:06:08 +0000 (16:06 -0700)
committerPaul Gortmaker <paul.gortmaker@windriver.com>
Mon, 10 Feb 2014 21:11:18 +0000 (16:11 -0500)
commit4b95b8ee9bb1051c0f81922f970ed1e0977ed9b9
tree59130ac6ee078aab944f56a1ad30f7c3aa018541
parent8bcc9b593131db101cf21e09c9711f239e3008ef
xhci: Increase reset timeout for Renesas 720201 host.

commit 22ceac191211cf6688b1bf6ecd93c8b6bf80ed9b upstream.

The NEC/Renesas 720201 xHCI host controller does not complete its reset
within 250 milliseconds.  In fact, it takes about 9 seconds to reset the
host controller, and 1 second for the host to be ready for doorbell
rings.  Extend the reset and CNR polling timeout to 10 seconds each.

This patch should be backported to kernels as old as 2.6.31, that
contain the commit 66d4eadd8d067269ea8fead1a50fe87c2979a80d "USB: xhci:
BIOS handoff and HW initialization."

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: Edwin Klein Mentink <e.kleinmentink@zonnet.nl>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
drivers/usb/host/xhci.c