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xhci: Fix front USB ports on ASUS PRIME B350M-A

PATCH New Greg Kroah-Hartman 1 participant 1 message Mar 8, 2018 USB

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Greg Kroah-Hartman

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PATCH 4/4 xhci: Fix front USB ports on ASUS PRIME B350M-A

Quoted 12 lines · Mathias Nyman

From: Kai-Heng Feng <[email protected]>

When a USB device gets plugged on ASUS PRIME B350M-A's front ports, the xHC stops working:

[  549.114587] xhci_hcd 0000:02:00.0: WARN: xHC CMD_RUN timeout
[  549.114608] suspend_common(): xhci_pci_suspend+0x0/0xc0 returns -110
[  549.114638] xhci_hcd 0000:02:00.0: can't suspend (hcd_pci_runtime_suspend returned -110)

Delay before running xHC command CMD_RUN can workaround the issue.

Use a new quirk to make the delay only targets to the affected xHC.

Quoted 7 lines
---
 drivers/usb/host/xhci-pci.c | 3 +++
 drivers/usb/host/xhci.c     | 3 +++
 drivers/usb/host/xhci.h     | 1 +
 3 files changed, 7 insertions(+)

Any reason this shouldn't go to the stable kernel trees?

thanks,

greg k-h
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