| /* SPDX-License-Identifier: GPL-2.0 */ | |
| /* | |
| * Copyright (C) 2016 Intel Corp. | |
| */ | |
| #define PCI_OSC_UUID "33DB4D5B-1FF7-401C-9657-7441C03DD766" | |
| Scope (\_SB.PCI0) { | |
| Method (_OSC, 4) { | |
| /* Check for proper GUID */ | |
| If (LEqual (Arg0, ToUUID (PCI_OSC_UUID))) { | |
| /* Let OS control everything */ | |
| Return (Arg3) | |
| } Else { | |
| /* Unrecognized UUID */ | |
| CreateDWordField (Arg3, 0, CDW1) | |
| Or (CDW1, 4, CDW1) | |
| Return (Arg3) | |
| } | |
| } | |
| } |