src/soc/intel/common/acpi/pci_osc.asl


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/* 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)
		}
	}
}