https://bugzilla.kernel.org/show_bug.cgi?id=203529
--- Comment #8 from Zhang Rui (rui.zh...@intel.com) ---
The
OperationRegion (WST1, GenericSerialBus, 0x1000, 0x0100)
is under I2C0 device.
Device (I2C0)
{
If ((SMD0 != One))
{
Name (_HID, "INT34B2") // _HID: Hardware ID
Method (_HRV, 0, NotSerialized) // _HRV: Hardware Revision
{
Return (LHRV (SB10))
}
Method (_CRS, 0, NotSerialized) // _CRS: Current Resource
Settings
{
Return (LCRS (SMD0, SB00, SIR0))
}
}
If ((SMD0 == One))
{
Name (_ADR, 0x00150000) // _ADR: Address
Method (_DSM, 4, Serialized) // _DSM: Device-Specific Method
{
If (PCIC (Arg0))
{
Return (PCID (Arg0, Arg1, Arg2, Arg3))
}
Return (Buffer (One)
{
0x00 // .
})
}
}
It seems that this device can be enumerated either as an ACPI device or as
native PCI device, via a switch SMD0.
So can you please attach the lspci output and see if it is enumerated as PCI
device 00:15.0? if yes, please attach the lspci -vvx -s 00:15.0?
if no, can you please check if there is /sys/bus/acpi/devices/INT34B2:0 device,
and if there is any driver binding to it?
Plus, please check your BIOS options and if there is anything related with
switching between "ACPI enumeration mode" and "PCI enumeration mode".
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