Use INTx for Pericom USB controllers
Bug #1906839 reported by
Kai-Heng Feng
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Focal |
Invalid
|
Undecided
|
Unassigned | ||
linux-oem-5.10 (Ubuntu) |
Won't Fix
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
High
|
Unassigned |
Bug Description
[Impact]
Pericom EHCI/OHCI controller cannot detect USB hotplug after using MSI.
[Fix]
Disable MSI and fallback to INTx.
[Test]
Hotplug any USB device and nothing gets detected.
With the fix applied the issue is gone.
[Where problems could occur]
Nothing wrong can happen. It was already using INTx before 306c54d0edb6
("usb: hcd: Try MSI interrupts on PCI devices"), and now it goes back to
use INTx again.
affects: | linux (Ubuntu) → linux-oem-5.10 (Ubuntu) |
Changed in linux-oem-5.10 (Ubuntu): | |
status: | New → Won't Fix |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | New → Confirmed |
importance: | Undecided → High |
tags: | added: oem-priority originate-from-1905926 somerville |
Changed in linux (Ubuntu Focal): | |
status: | New → Invalid |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | Confirmed → Fix Committed |
tags: |
added: verification-done-focal removed: verification-needed-focal |
Changed in hwe-next: | |
status: | New → Fix Released |
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need this to land in focal/oem/5.10 kernel.