APPLIED [OEM-5.14] Re: [SRU] [J/Unstable/OEM-5.14] [PATCH 0/1] Fix USB3 detection on HP dock

Timo Aaltonen tjaalton at ubuntu.com
Mon Jan 17 10:27:33 UTC 2022


On 21.12.2021 5.20, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1955443
> 
> [Impact]
> Hotplug a USB3 device to HP dock can go undetected.
> 
> [Fix]
> Add a delay for USB3 hub resume routine so the link has enough time to
> transit to U0.
> 
> [Test]
> After the patch is applied, the dock can always detect USB3 devices.
> 
> [Where problems could occur]
> A non-noticeable delay was added, so no basically no impact.
> 
> Kai-Heng Feng (1):
>    usb: hub: Add delay for SuperSpeed hub resume to let links transit to
>      U0
> 
>   drivers/usb/core/hub.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
> 

applied to oem-5.14, thanks

-- 
t



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