[Bug 220667] New: xhci_hcd prevents S3 suspend to RAM from working on Zen 5 system

[Bug 220667] New: xhci_hcd prevents S3 suspend to RAM from working on Zen 5 system

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=220667

            Bug ID: 220667
           Summary: xhci_hcd prevents S3 suspend to RAM from working on
                    Zen 5 system
           Product: Drivers
           Version: 2.5
          Hardware: AMD
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: USB
          Assignee: drivers_usb@kernel-bugs.kernel.org
          Reporter: kode54@gmail.com
        Regression: No

Created attachment 308808
  --> https://bugzilla.kernel.org/attachment.cgi?id=308808&action=edit
boot excerpt, followed by suspend errors

As of upgrading my system to a slightly patched build of 6.18-rc1 (not patched
in ways which should affect this bug), S3 suspend fails due to an empty USB 2.0
hub in the system.

Log lines related to the USB hub's PCI device, in attached log excerpts.

Using sysfs to remove the following device path:

echo 1 | sudo tee /sys/devices/pci0000:00/0000:00:08.3/0000:1a:00.0/remove

Allows the machine to suspend normally, and the device stays removed upon
resume.

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[Bug 220667] xhci_hcd prevents S3 suspend to RAM from working on Zen 5 system

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=220667

Christopher Snowhill (kode54@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|                            |6.18-rc1

--- Comment #1 from Christopher Snowhill (kode54@gmail.com) ---
Log messages from 6.17.1, where it appears to connect without the suspend
message, but reports that it has no ports:

Oct 14 00:01:16 copycat kernel: xhci_hcd 0000:1a:00.0: xHCI Host Controller
Oct 14 00:01:16 copycat kernel: xhci_hcd 0000:1a:00.0: new USB bus registered,
assigned bus number 9
Oct 14 00:01:16 copycat kernel: xhci_hcd 0000:1a:00.0: USB3 root hub has no
ports
Oct 14 00:01:16 copycat kernel: xhci_hcd 0000:1a:00.0: hcc params 0x0110ffc5
hci version 0x120 quirks 0x0000000200000010
Oct 14 00:01:16 copycat kernel: xhci_hcd 0000:1a:00.0: xHCI Host Controller
Oct 14 00:01:16 copycat kernel: xhci_hcd 0000:1a:00.0: new USB bus registered,
assigned bus number 10
Oct 14 00:01:16 copycat kernel: xhci_hcd 0000:1a:00.0: Host supports USB 3.0
SuperSpeed
Oct 14 00:01:16 copycat kernel: usb usb9: New USB device found, idVendor=1d6b,
idProduct=0002, bcdDevice= 6.17
Oct 14 00:01:16 copycat kernel: usb usb9: New USB device strings: Mfr=3,
Product=2, SerialNumber=1
Oct 14 00:01:16 copycat kernel: usb usb9: Product: xHCI Host Controller
Oct 14 00:01:16 copycat kernel: usb usb9: Manufacturer: Linux 6.17.1-3-cachyos
xhci-hcd
Oct 14 00:01:16 copycat kernel: usb usb9: SerialNumber: 0000:1a:00.0
Oct 14 00:01:16 copycat kernel: hub 9-0:1.0: USB hub found
Oct 14 00:01:16 copycat kernel: hub 9-0:1.0: 1 port detected
Oct 14 00:01:16 copycat kernel: usb usb10: We don't know the algorithms for LPM
for this host, disabling LPM.
Oct 14 00:01:16 copycat kernel: usb usb10: New USB device found, idVendor=1d6b,
idProduct=0003, bcdDevice= 6.17
Oct 14 00:01:16 copycat kernel: usb usb10: New USB device strings: Mfr=3,
Product=2, SerialNumber=1
Oct 14 00:01:16 copycat kernel: usb usb10: Product: xHCI Host Controller
Oct 14 00:01:16 copycat kernel: usb usb10: Manufacturer: Linux 6.17.1-3-cachyos
xhci-hcd
Oct 14 00:01:16 copycat kernel: usb usb10: SerialNumber: 0000:1a:00.0
Oct 14 00:01:16 copycat kernel: hub 10-0:1.0: USB hub found
Oct 14 00:01:16 copycat kernel: hub 10-0:1.0: config failed, hub doesn't have
any ports! (err -19)

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[Bug 220667] xhci_hcd prevents S3 suspend to RAM from working on Zen 5 system

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=220667

Michał Pecio (michal.pecio@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |michal.pecio@gmail.com

--- Comment #2 from Michał Pecio (michal.pecio@gmail.com) ---
The empty USB 3.0 hub should be gone in v6.18.

The non-empty USB 2.0 hub is gone too, which is a bug to be fixed in v6.18-rc2.

Please start with checking if this commit also solves your suspend issue.
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git/commit/?h=usb-linus&id=8607edcd1748503f4f58e66ca0216170f260c79b

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[Bug 220667] xhci_hcd prevents S3 suspend to RAM from working on Zen 5 system

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=220667

--- Comment #3 from Christopher Snowhill (kode54@gmail.com) ---
Yes, that fixed it. Excellent.

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[Bug 220667] xhci_hcd prevents S3 suspend to RAM from working on Zen 5 system

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=220667

Christopher Snowhill (kode54@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |PATCH_ALREADY_AVAILABLE

--- Comment #4 from Christopher Snowhill (kode54@gmail.com) ---
Oops, forgot to mark the solution.

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[Bug 220667] xhci_hcd prevents S3 suspend to RAM from working on Zen 5 system

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=220667

--- Comment #5 from Christopher Snowhill (kode54@gmail.com) ---
Looks like this fix didn't make it into rc2.

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