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-rw-r--r--src/soc/amd/common/acpi/upep.asl34
1 files changed, 28 insertions, 6 deletions
diff --git a/src/soc/amd/common/acpi/upep.asl b/src/soc/amd/common/acpi/upep.asl
index ef068452f8..b44ed43b23 100644
--- a/src/soc/amd/common/acpi/upep.asl
+++ b/src/soc/amd/common/acpi/upep.asl
@@ -5,8 +5,13 @@
#define PEPD_DSM_LPI_ADDITIONAL_FUNCTIONS 1
#define PEPD_DSM_LPI_GET_DEVICE_CONSTRAINTS 1
-#define PEPD_DSM_NOTIFICATIONS_UUID "11e00d56-ce64-47ce-837b-1f898f9aa461"
-#define PEPD_DSM_NOTIFICATION_ENUM_FUNCTIONS 0
+#define PEPD_DSM_NOTIFICATIONS_UUID "11e00d56-ce64-47ce-837b-1f898f9aa461"
+#define PEPD_DSM_NOTIFICATION_ENUM_FUNCTIONS 0
+#define PEPD_DSM_NOTIFICATION_ADDITIONAL_FUNCTIONS 1
+#define PEPD_DSM_NOTIFICATION_LOW_POWER_ENTRY 5
+#define PEPD_DSM_NOTIFICATION_LOW_POWER_EXIT 6
+
+External(\_SB.MS0X, MethodObj)
/*
* Power Engine Plug-in Device
@@ -89,10 +94,27 @@ Scope (\_SB) {
* this UUID.
*/
Case (PEPD_DSM_NOTIFICATION_ENUM_FUNCTIONS) {
- /*
- * TODO(b/185586290): Add additional functions when
- * linux kernel driver is fixed.
- */
+ Local0 = Buffer { 0x00 }
+ CreateByteField(Local0, 0x00, SUPP)
+
+ SUPP = PEPD_DSM_NOTIFICATION_ADDITIONAL_FUNCTIONS
+ SUPP |= 1 << PEPD_DSM_NOTIFICATION_LOW_POWER_ENTRY
+ SUPP |= 1 << PEPD_DSM_NOTIFICATION_LOW_POWER_EXIT
+
+ Return (Local0)
+ }
+ Case (PEPD_DSM_NOTIFICATION_LOW_POWER_ENTRY) {
+ /* provide board level S0ix hook */
+ If (CondRefOf (\_SB.MS0X)) {
+ \_SB.MS0X(1)
+ }
+ Return (Buffer() { 0x00 })
+ }
+ Case (PEPD_DSM_NOTIFICATION_LOW_POWER_EXIT) {
+ /* provide board level S0ix hook */
+ If (CondRefOf (\_SB.MS0X)) {
+ \_SB.MS0X(0)
+ }
Return (Buffer() { 0x00 })
}
Default {