Public bug reported:

[SRU Justification]

[Impact]
Cold plugged USB device was not detected on certain PCIe USB cards
(like Inateck card connected to AM64 EVM or connected to J7200 EVM).
And also the root hub mentioned in https://bugs.launchpad.net/bugs/1939638.

Re-plugging the USB device always gets it enumerated.

[Fix]
Register both root hubs along with the secondary hcd for xhci.

[Test Case]
1. Plug the USB device to the ports of problematic root hub.
2. Power on the machine.
3. Check if the USB device can work or not after boot.

[Regression Potential]
Low. It simply make sure both primary and secondary roothubs are registered 
along with the second HCD.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: linux (Ubuntu Focal)
     Importance: Undecided
         Status: New

** Affects: linux (Ubuntu Hirsute)
     Importance: Undecided
         Status: New

** Also affects: linux (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Hirsute)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1945211

Title:
  Fix cold plugged USB device on certain PCIe USB cards

Status in linux package in Ubuntu:
  New
Status in linux source package in Focal:
  New
Status in linux source package in Hirsute:
  New

Bug description:
  [SRU Justification]

  [Impact]
  Cold plugged USB device was not detected on certain PCIe USB cards
  (like Inateck card connected to AM64 EVM or connected to J7200 EVM).
  And also the root hub mentioned in https://bugs.launchpad.net/bugs/1939638.

  Re-plugging the USB device always gets it enumerated.

  [Fix]
  Register both root hubs along with the secondary hcd for xhci.

  [Test Case]
  1. Plug the USB device to the ports of problematic root hub.
  2. Power on the machine.
  3. Check if the USB device can work or not after boot.

  [Regression Potential]
  Low. It simply make sure both primary and secondary roothubs are registered 
along with the second HCD.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1945211/+subscriptions


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