APPLIED[F/Unstable]: [SRU] [E/F/Unstable/OEM-OSP1-B] [PATCH 0/4] Make Dell WD19 dock more reliable after suspend

[Seth Forshee]

On Fri, Mar 20, 2020 at 03:39:33PM +0800, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1868217
> 
> [Impact]
> When Dell WD19 dock connects multiple USB3 storage devices, the USB Hub
> used internally may stop working after suspend.
> 
> [Fix]
> Disable LPM on the Realtek USB Hub, and let xHCI controller make sure
> the link state transition is completed.
> 
> [Test]
> After applying the patches, the Dell WD19 works reliably after thousand
> times for suspend/resume cycle.
> 
> [Regression Potential]
> Low. This replaces the currently "msleep" way with more robust
> mechanism. I also test other systems and nothing breaks.

Applied to focal/master-next and unstable/master, thanks!