Patch "USB: UHCI: report non-PME wakeup signalling for Intel hardware" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

USB: UHCI: report non-PME wakeup signalling for Intel hardware

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
usb-uhci-report-non-pme-wakeup-signalling-for-intel-hardware.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Alan Stern <[email protected]>
Date: Fri, 21 Oct 2016 16:49:07 -0400
Subject: USB: UHCI: report non-PME wakeup signalling for Intel hardware

From: Alan Stern <[email protected]>

commit ccdb6be9ec6580ef69f68949ebe26e0fb58a6fb0 upstream.

The UHCI controllers in Intel chipsets rely on a platform-specific non-PME mechanism for wakeup signalling. They can generate wakeup signals even though they don't support PME.

We need to let the USB core know this so that it will enable runtime suspend for UHCI controllers.

---
 drivers/usb/host/uhci-pci.c |    4 ++++
 1 file changed, 4 insertions(+)

@@ -129,6 +129,10 @@ static int uhci_pci_init(struct usb_hcd
 	if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_HP)
 		uhci->wait_for_hp = 1;
 
+	/* Intel controllers use non-PME wakeup signalling */
+	if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_INTEL)
+		device_set_run_wake(uhci_dev(uhci), 1);
+
 	/* Set up pointers to PCI-specific functions */
 	uhci->reset_hc = uhci_pci_reset_hc;
 	uhci->check_and_reset_hc = uhci_pci_check_and_reset_hc;

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/usb-uhci-report-non-pme-wakeup-signalling-for-intel-hardware.patch queue-4.4/usb-hub-fix-auto-remount-of-safely-removed-or-ejected-usb-3-devices.patch