ucsi_acpi GET_CONNECTOR_STATUS failed (-5)

Hi,

I'm using quite a new device (Lenovo Yoga 9 (14ITL5)) on ArchLinux with 
mainline kernel version 5.14.0-rc7 and run into the following error:

ucsi_acpi USBC000:00: ucsi_handle_connector_change: GET_CONNECTOR_STATUS 
failed (-5)

The device is charged using a USB-C cable and this error is related to 
attaching or detaching the power cable. Sometimes I can at-/detach the 
cable without this error showing, in other cases it appears once, and 
then I have cases where it floods my kernel log with one such message 
per second.

Sometimes the above error is accompanied by this additional error:

ucsi_acpi USBC000:00: UCSI_GET_PDOS failed (-5)

I attached the kernel log and the information from `lsusb`. Feel free to 
request further logs, though I will most likely require some pointers on 
how to get them.


Thanks in advance

Ulrich