diff mbox series

xhci:Add reset resume quirk for AMD xhci controller.

Message ID 20210504045739.3786551-1-Sandeep.Singh@amd.com (mailing list archive)
State Accepted
Commit 3c128781d8da463761495aaf8898c9ecb4e71528
Headers show
Series xhci:Add reset resume quirk for AMD xhci controller. | expand

Commit Message

Sandeep Singh May 4, 2021, 4:57 a.m. UTC 
From: Sandeep Singh <sandeep.singh@amd.com>

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.

Signed-off-by: Sandeep Singh <sandeep.singh@amd.com>
---
 drivers/usb/host/xhci-pci.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 84da8406d5b4..c8c468271767 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -165,8 +165,10 @@  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;