/* SPDX-License-Identifier: GPL-2.0-only */ | |
#define PCI_OSC_UUID "33DB4D5B-1FF7-401C-9657-7441C03DD766" | |
Scope (\_SB.PCI0) { | |
Method (_OSC, 4) { | |
/* Check for proper GUID */ | |
If (Arg0 == ToUUID (PCI_OSC_UUID)) { | |
/* Let OS control everything */ | |
Return (Arg3) | |
} Else { | |
/* Unrecognized UUID */ | |
CreateDWordField (Arg3, 0, CDW1) | |
CDW1 |= 4 | |
Return (Arg3) | |
} | |
} | |
} |