diff options
| author | CoolStar <coolstarorganization@gmail.com> | 2023-07-10 18:03:40 -0700 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-07-13 16:37:21 +0000 |
| commit | c7b27b3ad628f00ab4cd5cfae07d1796a7a25fb3 (patch) | |
| tree | 9a279bb3a25631e3e9b07f6f38e22b7f7afe633a /src/include/acpi | |
| parent | 43169fe86d472c1e6d1199e56c53b88928b638dd (diff) | |
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 <coolstarorganization@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76413
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Diffstat (limited to 'src/include/acpi')
| -rw-r--r-- | src/include/acpi/acpi.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h index 17043931f2..69bc00eefc 100644 --- a/src/include/acpi/acpi.h +++ b/src/include/acpi/acpi.h @@ -68,6 +68,8 @@ enum acpi_device_sleep_states { /* 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 */ }; |