From d227cac448478d6d221c455e16d5df137b79d545 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 25 Aug 2014 12:21:56 +0200
Subject: [PATCH] xhci: Disable streams on Via XHCI with device-id 0x3432
This is a bit bigger hammer then I would like to use for this, but for now
it will have to make do. I'm working on getting my hands on one of these so
that I can try to get streams to work (with a quirk flag if necessary) and
then we can re-enable them.
For now this at least makes uas capable disk enclosures work again by forcing
fallback to the usb-storage driver.
https://bugzilla.kernel.org/show_bug.cgi?id=79511
Bugzilla: 1132666
Upstream-status: Sent for 3.17 and Cc'd stable
Cc: stable@vger.kernel.org # 3.15
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/usb/host/xhci-pci.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 687d36608155..d973682f72ce 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -151,6 +151,11 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
if (pdev->vendor == PCI_VENDOR_ID_VIA)
xhci->quirks |= XHCI_RESET_ON_RESUME;
+ /* See https://bugzilla.kernel.org/show_bug.cgi?id=79511 */
+ if (pdev->vendor == PCI_VENDOR_ID_VIA &&
+ pdev->device == 0x3432)
+ xhci->quirks |= XHCI_BROKEN_STREAMS;
+
if (xhci->quirks & XHCI_RESET_ON_RESUME)
xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
"QUIRK: Resetting on resume");
--
1.9.3