xHCI: add XHCI_RESET_ON_RESUME quirk for VIA xHCI host
authorElric Fu <elricfu1@gmail.com>
Thu, 29 Mar 2012 07:47:50 +0000 (15:47 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 22 Apr 2012 23:21:41 +0000 (16:21 -0700)
commit017652f31965665b963c5419a2a46762e0853584
tree3e2398818af1f28d55a5e017d160b6ebe129ad9a
parent4701517be3f6950c7120f213c50270eff9ebe169
xHCI: add XHCI_RESET_ON_RESUME quirk for VIA xHCI host

commit 457a4f61f9bfc3ae76e5b49f30f25d86bb696f67 upstream.

The suspend operation of VIA xHCI host have some issues and
hibernate operation works fine, so The XHCI_RESET_ON_RESUME
quirk is added for it.

This patch should base on "xHCI: Don't write zeroed pointer
to xHC registers" that is released by Sarah. Otherwise, the
host system error will ocurr in the hibernate operation
process.

This should be backported to stable kernels as old as 2.6.37,
that contain the commit c877b3b2ad5cb9d4fe523c5496185cc328ff3ae9
"xhci: Add reset on resume quirk for asrock p67 host".

Signed-off-by: Elric Fu <elricfu1@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/host/xhci-pci.c