FWTS reports an unexpected Medium Failure: "acpipld: ACPI method \_SB_.PC01.BRPH.XHCI.RHUB.SS01._PLD exists on the port claimed not connected"

[Yongbin Zhong]

Tool test case is: "Check the ACPI _PLD methods exist on the port connectable", the main task is to make sure the connectable port has the _PLD method. It should be an issue if a connectable port doesn't have _PLD method.

However, on our platform, the port is already declared NOT connectable. Checking the ACPI spec, it doesn't define that _PLD method must NOT exist on a port that is NOT connectable.

Hence, FWTS tool should NOT report such failure.

[Ivan Hu (ivan.hu)]

This test does not verify that a connectable port has the _PLD method. Instead, it ensures that a non-connectable port, identified by _UPC, does not have the _PLD method, which triggers a warning in the Linux kernel.

failure such as,
acpipld: The ACPI method \_SB_.PCI0.XHC_.RHUB.HS06._PLD exists on the port claimed not connectable by the \_SB_.PCI0.XHC_.RHUB.HS06._UPC.

Might need to change the test description to avoid misunderstanding. Use the following description:
"Check that the ACPI _PLD methods exist only on connectable ports."