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[SRU,Bionic,1/1] xhci: Fix USB ports for Dell Inspiron 5775

Message ID 20180622185047.17690-2-kai.heng.feng@canonical.com
State New
Headers show
Series Fix Ryzen/Raven Ridge USB ports do not work | expand

Commit Message

Kai-Heng Feng June 22, 2018, 6:50 p.m. UTC 
BugLink: https://bugs.launchpad.net/bugs/1756700

The Dell Inspiron 5775 is a Raven Ridge. The Enable Slot command timed
out when a USB device gets plugged:
[ 212.156326] xhci_hcd 0000:03:00.3: Error while assigning device slot ID
[ 212.156340] xhci_hcd 0000:03:00.3: Max number of devices this xHCI host supports is 64.
[ 212.156348] usb usb2-port3: couldn't allocate usb_device

AMD suggests that a delay before xHC suspends can fix the issue.

I can confirm it fixes the issue, so use the suspend delay quirk for
Raven Ridge's xHC.

Cc: stable@vger.kernel.org
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 621faf4f6a181b6e012c1d1865213f36f4159b7f)
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
---
 drivers/usb/host/xhci-pci.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index f68f364c77d5..53f1420064f9 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -122,7 +122,10 @@  static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	if (pdev->vendor == PCI_VENDOR_ID_AMD && usb_amd_find_chipset_info())
 		xhci->quirks |= XHCI_AMD_PLL_FIX;
 
-	if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x43bb)
+	if (pdev->vendor == PCI_VENDOR_ID_AMD &&
+		(pdev->device == 0x15e0 ||
+		 pdev->device == 0x15e1 ||
+		 pdev->device == 0x43bb))
 		xhci->quirks |= XHCI_SUSPEND_DELAY;
 
 	if (pdev->vendor == PCI_VENDOR_ID_AMD)