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authorCoolStar <coolstarorganization@gmail.com>2023-10-15 16:51:54 -0700
committerMatt DeVillier <matt.devillier@amd.corp-partner.google.com>2023-10-20 14:23:55 +0000
commitce84a347bfa16f393e75e4cc63eded636ca69af8 (patch)
tree25e927ea021b3679d8f235ab0734d03bb1b1b565
parentef68e98ff4a4f0fd9af24083e3c6d3dbcaf41879 (diff)
acpi: Reserve hardware ID for custom AMD ACP driver
AMD Audio CoProcessor handles I2S audio on AMD SoC's. Prior to AMD Ryzen platforms (e.g. STONEY) it is located on the Integrated GFX device. As the proprietary AMD driver does not support accessing this easily, reserve a custom ACPI ID from the coreboot namespace so that another driver can be attached in Windows device manager. Change-Id: I855b81908ed9ad0587b6367b052c726c36350208 Signed-off-by: CoolStar <coolstarorganization@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/78405 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
-rw-r--r--src/include/acpi/acpi.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/acpi/acpi.h b/src/include/acpi/acpi.h
index acd5538709..fe7e5fd829 100644
--- a/src/include/acpi/acpi.h
+++ b/src/include/acpi/acpi.h
@@ -70,6 +70,7 @@ 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_AMDGFX_ACP = 0x0003, /* BOOT0003 */
COREBOOT_ACPI_ID_MAX = 0xFFFF, /* BOOTFFFF */
};