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authorSandeep Singh <sandeep.singh@amd.com>2021-05-12 11:08:16 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-05-22 11:59:46 +0300
commit079582a83669bafaeef27a04ad4328886c1cb4fb (patch)
tree040f1490fbdb8aa3b32c103bff5ef69245744464 /drivers/usb/host
parent8d7a755ab48a0e01169c22aab5842603a34fc879 (diff)
downloadlinux-079582a83669bafaeef27a04ad4328886c1cb4fb.tar.xz
xhci: Add reset resume quirk for AMD xhci controller.
commit 3c128781d8da463761495aaf8898c9ecb4e71528 upstream. One of AMD xhci controller require reset on resume. Occasionally AMD xhci controller does not respond to Stop endpoint command. Once the issue happens controller goes into bad state and in that case controller needs to be reset. Cc: <stable@vger.kernel.org> Signed-off-by: Sandeep Singh <sandeep.singh@amd.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20210512080816.866037-6-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host')
-rw-r--r--drivers/usb/host/xhci-pci.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 42ff11e3c4dc..19485c076ba3 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -144,8 +144,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
(pdev->device == 0x15e0 || pdev->device == 0x15e1))
xhci->quirks |= XHCI_SNPS_BROKEN_SUSPEND;
- if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x15e5)
+ if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x15e5) {
xhci->quirks |= XHCI_DISABLE_SPARSE;
+ xhci->quirks |= XHCI_RESET_ON_RESUME;
+ }
if (pdev->vendor == PCI_VENDOR_ID_AMD)
xhci->quirks |= XHCI_TRUST_TX_LENGTH;