tree 62a0fb2af07e27c5c37a9655e015f63ed85d1692
parent 28e099e9aad50dd789e3146d8f36d272f45e0c53
author Michael Spang <spang@chromium.org> 1347642349 -0400
committer Matthias Kaehlcke <mka@google.com> 1433366098 -0700

Increase XHCI suspend timeout to 16ms

commit a6e097dfdfd189b6929af6efa1d289af61858386 upstream.

The Intel XHCI specification says that after clearing the run/stop bit
the controller may take up to 16ms to halt. We've seen a device take
14ms, which with the current timeout of 10ms causes the kernel to
abort the suspend. Increasing the timeout to the recommended value
fixes the problem.

This patch should be backported to kernels as old as 2.6.37, that
contain the commit 5535b1d5f8885695c6ded783c692e3c0d0eda8ca "USB: xHCI:
PCI power management implementation".

Signed-off-by: Michael Spang <spang@chromium.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>