[XS] Change in coreboot[master]: acpi: Reserve hardware IDs for custom Intel GMBus I2C driver

[CoolStar (Code Review)]

CoolStar has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/76413?usp=email )

Change subject: acpi: Reserve hardware IDs for custom Intel GMBus I2C driver
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acpi: Reserve hardware IDs for custom Intel GMBus I2C driver

GMBus is an I2C compatible link on Intel IGPUs. Most non-Linux OS's don't
support accessing this ordinarily, so a custom driver is needed with
a bit of ACPI hackery. Reserve 2 IDs from the coreboot namespace
so that the 2 devices required can be populated in Windows device manager

Change-Id: I389612441e96ce2fc5e006051e523661953eba6e
Signed-off-by: CoolStar 
---
M src/include/acpi/acpi.h
1 file changed, 2 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/13/76413/1

diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h
index 1704393..69bc00e 100644
--- a/src/include/acpi/acpi.h
+++ b/src/include/acpi/acpi.h
@@ -68,6 +68,8 @@
 /* List of ACPI HID that use the coreboot ACPI ID */
 enum coreboot_acpi_ids {
    COREBOOT_ACPI_ID_CBTABLE	= 0x0000, /* BOOT0000 */
+	COREBOOT_ACPI_ID_IGD_GMBUS_ARB  = 0x0001, /* BOOT0001 */
+	COREBOOT_ACPI_ID_IGD_GMBUS_LINK = 0x0002, /* BOOT0002 */
    COREBOOT_ACPI_ID_MAX		= 0xFFFF, /* BOOTFFFF */
 };