mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-09 21:06:39 +07:00
xhci: clear root port wake on bits if controller isn't wake-up capable
When xHCI PCI host is suspended, if do_wakeup is false in xhci_pci_suspend,
xhci_bus_suspend needs to clear all root port wake on bits. Otherwise some Intel
platforms may get a spurious wakeup, even if PCI PME# is disabled.
This patch should be back-ported to kernels as old as 2.6.37, that
contains the commit 9777e3ce90
"USB: xHCI: bus power management implementation".
Cc: stable@vger.kernel.org # 2.6.37
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
3213b15138
commit
ff8cbf250b
@ -22,6 +22,7 @@
|
||||
|
||||
|
||||
#include <linux/slab.h>
|
||||
#include <linux/device.h>
|
||||
#include <asm/unaligned.h>
|
||||
|
||||
#include "xhci.h"
|
||||
@ -1139,7 +1140,9 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
|
||||
* including the USB 3.0 roothub, but only if CONFIG_PM_RUNTIME
|
||||
* is enabled, so also enable remote wake here.
|
||||
*/
|
||||
if (hcd->self.root_hub->do_remote_wakeup) {
|
||||
if (hcd->self.root_hub->do_remote_wakeup
|
||||
&& device_may_wakeup(hcd->self.controller)) {
|
||||
|
||||
if (t1 & PORT_CONNECT) {
|
||||
t2 |= PORT_WKOC_E | PORT_WKDISC_E;
|
||||
t2 &= ~PORT_WKCONN_E;
|
||||
|
Loading…
Reference in New Issue
Block a user