Merge tag 'usb-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some remaining USB fixes for 4.13-rc1. They were originally
  scheduled for 4.12-final, but I didn't send them to you in time.
  Because of that, they were in a separate branch from the larger USB
  set of patches, so here they are in a separate pull request.

  Nothing major here a all, just three small patches:

   - some usb-serial new device ids
   - xhci bugfix for some crazy AMD hardware

  All of these have been in linux-next for a long time with no reported
  issues"

* tag 'usb-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  xhci: Limit USB2 port wake support for AMD Promontory hosts
  USB: serial: qcserial: new Sierra Wireless EM7305 device ID
  USB: serial: option: add two Longcheer device ids

3 files changed, 16 insertions, 0 deletions

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 0dde49c35dd2..1adae9eab831 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -1461,6 +1461,9 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
 				t2 |= PORT_WKOC_E | PORT_WKCONN_E;
 				t2 &= ~PORT_WKDISC_E;
 			}
+			if ((xhci->quirks & XHCI_U2_DISABLE_WAKE) &&
+			    (hcd->speed < HCD_USB3))
+				t2 &= ~PORT_WAKE_BITS;
 		} else
 			t2 &= ~PORT_WAKE_BITS;
 
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 783e6687bf4a..53882e2babbb 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -54,6 +54,11 @@
 #define PCI_DEVICE_ID_INTEL_APL_XHCI			0x5aa8
 #define PCI_DEVICE_ID_INTEL_DNV_XHCI			0x19d0
 
+#define PCI_DEVICE_ID_AMD_PROMONTORYA_4			0x43b9
+#define PCI_DEVICE_ID_AMD_PROMONTORYA_3			0x43ba
+#define PCI_DEVICE_ID_AMD_PROMONTORYA_2			0x43bb
+#define PCI_DEVICE_ID_AMD_PROMONTORYA_1			0x43bc
+
 static const char hcd_name[] = "xhci_hcd";
 
 static struct hc_driver __read_mostly xhci_pci_hc_driver;
@@ -135,6 +140,13 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	if (pdev->vendor == PCI_VENDOR_ID_AMD)
 		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
 
+	if ((pdev->vendor == PCI_VENDOR_ID_AMD) &&
+		((pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4) ||
+		(pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_3) ||
+		(pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_2) ||
+		(pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_1)))
+		xhci->quirks |= XHCI_U2_DISABLE_WAKE;
+
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
 		xhci->quirks |= XHCI_LPM_SUPPORT;
 		xhci->quirks |= XHCI_INTEL_HOST;
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 650a2d9d4aec..3c6da1f93c84 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1819,6 +1819,7 @@ struct xhci_hcd {
 /* For controller with a broken Port Disable implementation */
 #define XHCI_BROKEN_PORT_PED	(1 << 25)
 #define XHCI_LIMIT_ENDPOINT_INTERVAL_7	(1 << 26)
+#define XHCI_U2_DISABLE_WAKE	(1 << 27)
 
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;