[Bug 221073] xHCI host controller dies on resume from s2idle on AMD Strix Halo [1022:1587]

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=221073

--- Comment #47 from David Hubbard (david.c.hubbard@gmail.com) ---
The patch fixes the issue for my Framework Desktop, AMD Ryzen aimax+ 395 /
Radeon 8060S

I tested first without the patch, kernel 6.17.7, to verify the bug behavior:

4 attempts to reproduce: wake fine, then 3x xhci bug

Then I applied the patch to the 6.17.7 tree. Hunk #4 I had to modify to match
6.17.7, removing the braces in the if block.

4 attempts to reproduce: 4x wake fine, no bug

My test procedure:

1. Reboot into the BIOS and change the iGPU config from Auto > Manual, and the
iGPU reserved memory from 0.5G > 32G
2. Boot 6.17.7
3. systemctl suspend
4. Wait about 60 sec
5. Wake the machine from a keyboard connected to the specific USB-A in the rear
that corresponds to 0000:c2:00.4
6. If the bug appears, I save dmesg and reboot. dmesg shows these errors:

kernel: xhci_hcd 0000:c2:00.4: xHCI host not responding to stop endpoint
command
kernel: xhci_hcd 0000:c2:00.4: xHCI host controller not responding, assume dead
kernel: xhci_hcd 0000:c2:00.4: HC died; cleaning up
kernel: usb 2-1: PM: dpm_run_callback(): usb_dev_resume returns -22
kernel: usb 1-1: PM: dpm_run_callback(): usb_dev_resume returns -22
kernel: usb 2-1: PM: failed to resume async: error -22
kernel: usb 1-1: PM: failed to resume async: error -22

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