[SRU] [linux-oem] [PATCH 0/2] Fix Ryzen/Raven Ridge USB ports do not work

Kai-Heng Feng kai.heng.feng at canonical.com
Sun Mar 18 16:15:01 UTC 2018

BugLink: https://bugs.launchpad.net/bugs/1756700

USB controller stops working once a USB device gets plugged.

Add a delay for xHC can workaround the issue.

Plug a USB device to affected system. USB controller stop working
With the patch, the issue is solved.

[Regression Potential]
Low. Trivial patch which adds a delay. No functional change.

Kai-Heng Feng (2):
  xhci: Fix front USB ports on ASUS PRIME B350M-A
  UBUNTU: SAUCE: xhci: Fix USB ports for Dell Inspiron 5775

 drivers/usb/host/xhci-pci.c | 6 ++++++
 drivers/usb/host/xhci.c     | 3 +++
 drivers/usb/host/xhci.h     | 1 +
 3 files changed, 10 insertions(+)


More information about the kernel-team mailing list