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From: Hans de Goede <hdegoede@redhat.com>
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Date: Fri, 5 Dec 2014 11:01:00 +0100
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Subject: [PATCH] xhci: Add broken-streams quirk for Fresco Logic FL1000G xhci
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controllers
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Streams do not work reliabe on Fresco Logic FL1000G xhci controllers,
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trying to use them results in errors like this:
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21:37:33 kernel: xhci_hcd 0000:04:00.0: ERROR Transfer event for disabled endpoint or incorrect stream ring
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21:37:33 kernel: xhci_hcd 0000:04:00.0: @00000000368b3570 9067b000 00000000 05000000 01078001
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21:37:33 kernel: xhci_hcd 0000:04:00.0: ERROR Transfer event for disabled endpoint or incorrect stream ring
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21:37:33 kernel: xhci_hcd 0000:04:00.0: @00000000368b3580 9067b400 00000000 05000000 01038001
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As always I've ordered a pci-e addon card with a Fresco Logic controller for
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myself to see if I can come up with a better fix then the big hammer, in
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the mean time this will make uas devices work again (in usb-storage mode)
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for FL1000G users.
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Reported-by: Marcin ZajÄ…czkowski <mszpak@wp.pl>
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Cc: stable@vger.kernel.org # 3.15
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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---
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drivers/usb/host/xhci-pci.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
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index d41ce7aaa97d..63f79aa82673 100644
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--- a/drivers/usb/host/xhci-pci.c
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+++ b/drivers/usb/host/xhci-pci.c
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@@ -80,6 +80,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
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"must be suspended extra slowly",
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pdev->revision);
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}
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+ if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK)
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+ xhci->quirks |= XHCI_BROKEN_STREAMS;
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/* Fresco Logic confirms: all revisions of this chip do not
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* support MSI, even though some of them claim to in their PCI
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* capabilities.
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--
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2.1.0
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