From 58f80bac479d5d34c1b4f7f15b8ebf4e6996b3bb Mon Sep 17 00:00:00 2001
From: Tim Wawrzynczak <twawrzynczak@chromium.org>
Date: Tue, 28 Jun 2022 12:04:49 -0600
Subject: [PATCH] mb/google/brya/acpi: Modify NBCI _DSM subfunction

The NBCI "get callbacks" _DSM subfunction should utilize the same "get
callbacks" subfunction from the GPS _DSM subfunction; this patch adds
that Method call into the ACPI code.

Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Idf2f148b5a95acccb02f47cba1ef33a9fc16bcd9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65483
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
---
 src/mainboard/google/brya/acpi/nbci.asl | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/mainboard/google/brya/acpi/nbci.asl b/src/mainboard/google/brya/acpi/nbci.asl
index 0564f7aea4..274c04be7f 100644
--- a/src/mainboard/google/brya/acpi/nbci.asl
+++ b/src/mainboard/google/brya/acpi/nbci.asl
@@ -8,6 +8,8 @@
 /* 'DR' in ASCII, for DRiver Object */
 #define NBCI_OBJTYPE_DR		0x4452
 
+#define GPS_FUNC_GETCALLBACKS	0x13
+
 Method (NBCI, 2, Serialized)
 {
 	Switch (ToInteger (Arg0))
@@ -30,7 +32,8 @@ Method (NBCI, 2, Serialized)
 		}
 		Case (NBCI_FUNC_GETCALLBACKS)
 		{
-			Return (0)
+			/* Re-use the GPS subfunction's GETCALLBACKS Method */
+			Return (GPS (GPS_FUNC_GETCALLBACKS, Arg1))
 		}
 		Case (NBCI_FUNC_GETOBJBYTYPE)
 		{