[Bug 214155] New: regression 5.10.49→5.10.52: Direct firmware load for renesas_usb_fw.mem failed with error -2

https://bugzilla.kernel.org/show_bug.cgi?id=214155

            Bug ID: 214155
           Summary: regression 5.10.49→5.10.52: Direct firmware load for
                    renesas_usb_fw.mem failed with error -2
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.10.52
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: USB
          Assignee: drivers_usb@kernel-bugs.kernel.org
          Reporter: bugzilla.kernel.org@e3q.eu
        Regression: No

My laptop's internal webcam stopped being detected at some point in the last
weeks. I do not use that webcam often and various things happened in that
period, such as minor kernel updates and a BIOS update, so it was not
immediately clear where the cause lay. After some investigation, I found the
following in my logs:

xhci_hcd 0000:06:00.0: Direct firmware load for renesas_usb_fw.mem failed with
error -2
xhci_hcd 0000:06:00.0: request_firmware failed: -2
xhci_hcd: probe of 0000:06:00.0 failed with error -2

Reverting to an earlier kernel version (5.10.52→5.10.49), this message
disappears and the webcam is detected again. This makes me suspect there is
some kind of regression after 5.10.49.

A related report can be found at

https://forums.lenovo.com/t5/Other-Linux-Discussions/Possible-1-34-BIOS-bug-on-P14s-AMD/m-p/5089865

There, the assumption is that this is related to the BIOS update. Given my
tests, there certainly is a kernel component to the issue.

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