ACK: [SRU] [B/D/E/Unstable/OEM-B] [PATCH 0/1] Fix xHCI on AMD Stoney Ridge cannot detect USB 2.0 or 1.1 devices

Connor Kuehl connor.kuehl at canonical.com
Thu Oct 3 20:36:28 UTC 2019


On 10/3/19 8:38 AM, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1846470
> 
> [Impact]
> xHCI on AMD Stoney Ridge cannot detect USB 2.0 or 1.1 devices.
> 
> [Fix]
> The xHCI in question doesn't have proper support for D0 PME, so strip it
> from PM capability.
> 
> [Test]
> The xHCI can detect USB 2.0 and USB 1.1 device with the fix.
> 
> [Regression Potential]
> Low. Has limited scope and doesn't touch any driver code.
> 
> Kai-Heng Feng (1):
>    x86/PCI: Avoid AMD FCH XHCI USB PME# from D0 defect
> 
>   arch/x86/pci/fixup.c | 11 +++++++++++
>   1 file changed, 11 insertions(+)
> 


Acked-by: Connor Kuehl <connor.kuehl at canonical.com>



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