[Bug 221721] New: prom21-xhci does not allow to use USB keyboard in plymouth

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=221721

            Bug ID: 221721
           Summary: prom21-xhci does not allow to use USB keyboard in
                    plymouth
           Product: Drivers
           Version: 2.5
          Hardware: AMD
                OS: Linux
            Status: NEW
          Severity: low
          Priority: P3
         Component: USB
          Assignee: drivers_usb@kernel-bugs.kernel.org
          Reporter: marx.tomasz@gmail.com
        Regression: No

Created attachment 310416
  --> https://bugzilla.kernel.org/attachment.cgi?id=310416&action=edit
output of "sudo lsusb -v"

Hi,

After update to 7.2-rc1 I was unable to type in LUKS password in plymouth. I
tried both of my USB keyboards, but both of them just briefly lit up the LEDs
and then seemed to turn off. Bisection pointed to

commit 364f4a55c661641c02c86a849f0608d8fc3c0006
Merge: e4b4bfaa5090 1c2b66a7d725
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Mon Jun 22 12:09:47 2026 -0700

    Merge tag 'usb-7.2-rc1' of
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

and then

commit 9e896b4a48c4e815956d28961448041c80ad5a19 (HEAD)
Author: Jihong Min <hurryman2212@gmail.com>
Date:   Tue May 19 09:07:31 2026 +0900

    usb: xhci-pci: add AMD Promontory 21 PCI glue

After setting SENSORS_PROM21_XHCI=n and compiling kernel again, I'm able to use
my PC normally.

CPU: AMD Ryzen 9 9900X
Motherboard: X870I AORUS PRO ICE
Output of "lsusb -v" provided in attachment.

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