ACK: [SRU] [B/C/D/Unstable/OEM-B] [PATCH 0/1] Workaround CSS timeout on AMD SNPS 3.0 xHC
khalid.elmously at canonical.com
Thu Dec 6 06:05:08 UTC 2018
On 2018-12-05 16:32:50 , Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1806838
> Raven Ridge xHC may fail to suspend, causes the USB stops working, and
> blocks the system entering system-wide suspend.
> It's a hardware/firmware bug, workarounded by bailing out suspend
> function if it ever fails, and reset the xHC in next resume function.
> After applying the patch, the USB works, and the system can enter S3
> [Regression Potential]
> Minimal. This workaround only applies to AMD Raven Ridge xHC.
> Sandeep Singh (1):
> xhci: workaround CSS timeout on AMD SNPS 3.0 xHC
> drivers/usb/host/xhci-pci.c | 4 ++++
> drivers/usb/host/xhci.c | 26 ++++++++++++++++++++++----
> drivers/usb/host/xhci.h | 3 +++
> 3 files changed, 29 insertions(+), 4 deletions(-)
Acked-by: Khalid Elmously <khalid.elmously at canonical.com>
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