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authorTim Wawrzynczak <twawrzynczak@chromium.org>2022-09-20 11:47:02 -0600
committerPaul Fagerburg <pfagerburg@chromium.org>2022-09-22 15:54:00 +0000
commit0eba73228f17489f8b4d4e736d800e88fb4001f2 (patch)
tree8b81424fc6ce98f8743b5e5bf0c63cbc45bf77ce /src/mainboard/google/brya/acpi
parent45b1da33c80a4b1328794a5a59c93d1988cee4f1 (diff)
mb/google/brya/acpi: Don't clear GC6 flag after GC6 entry
According to Nvidia, the GC6 flag (DFEN) should not get cleared after a successful GC6 entry; the kernel driver will not re-inform ACPI that the exit should be GC6 exit as well. BUG=b:243888246 BRANCH=brya TEST=tested by Nvidia Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Change-Id: I220795928d03f269de48278ea0ab57de7253fad5 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67745 Reviewed-by: Tarun Tuli <taruntuli@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/brya/acpi')
-rw-r--r--src/mainboard/google/brya/acpi/power.asl3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/mainboard/google/brya/acpi/power.asl b/src/mainboard/google/brya/acpi/power.asl
index a384297010..f2bcacb121 100644
--- a/src/mainboard/google/brya/acpi/power.asl
+++ b/src/mainboard/google/brya/acpi/power.asl
@@ -338,6 +338,7 @@ Method (NPON, 0, Serialized)
/* Handle deferred GC6 vs. poweroff request */
Method (NPOF, 0, Serialized)
{
+ /* Don't touch the `DFEN` flag until the GC6 exit. */
If (DFEN == GC6_DEFER_ENABLE)
{
/* Deferred GC6 entry */
@@ -345,8 +346,6 @@ Method (NPOF, 0, Serialized)
{
GC6I ()
}
-
- DFEN = GC6_DEFER_DISABLE
}
Else
{