[Bug 216728] Thunderbolt USB Controller died after resume on Intel CometLake platform

bugzilla-daemon
2022-11-25T06:34:20Z

--- Comment #5 from Mika Westerberg (mika.westerberg@linux.intel.com) ---
Thanks. It looks like the PCIe link to the xHCI is down:

03:02.0 PCI bridge: Intel Corporation JHL7540 Thunderbolt 3 Bridge [Titan Ridge
4C 2018] (rev 06) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 127
Bus: primary=03, secondary=38, subordinate=38, sec-latency=0
...
LnkSta: Speed 2.5GT/s (ok), Width x4 (ok)
TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-

I have not seen this one before. What's the firmware version? You can find this
out by reading /sys/bus/thunderbolt/devices/0-0/nvm_version.