diff options
| -rw-r--r-- | src/soc/intel/cannonlake/acpi/lpit.asl | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/src/soc/intel/cannonlake/acpi/lpit.asl b/src/soc/intel/cannonlake/acpi/lpit.asl index 93bce2644e..74d4fe6396 100644 --- a/src/soc/intel/cannonlake/acpi/lpit.asl +++ b/src/soc/intel/cannonlake/acpi/lpit.asl @@ -15,6 +15,7 @@ */ External(\_SB.MS0X, MethodObj) +External(\_SB.PCI0.LPCB.EC0.S0IX, MethodObj) scope(\_SB) { @@ -34,7 +35,7 @@ scope(\_SB) ) } /* - * Function 1. + * Function 1 - Get Device Constraints */ If(Arg2 == 1) { Return(Package(5) { @@ -42,7 +43,7 @@ scope(\_SB) ) } /* - * Function 2. + * Function 2 - Get Crash Dump Device */ If(Arg2 == 2) { Return(Buffer(One) { @@ -50,30 +51,38 @@ scope(\_SB) ) } /* - * Function 3. + * Function 3 - Display Off Notification */ If(Arg2 == 3) { } /* - * Function 4. + * Function 4 - Display On Notification */ If(Arg2 == 4) { } /* - * Function 5. + * Function 5 - Low Power S0 Entry Notification */ If(Arg2 == 5) { - \_SB.PCI0.LPCB.EC0.S0IX(1) + /* Inform the EC */ + If (CondRefOf (\_SB.PCI0.LPCB.EC0.S0IX)) { + \_SB.PCI0.LPCB.EC0.S0IX(1) + } + /* provide board level s0ix hook */ If (CondRefOf (\_SB.MS0X)) { \_SB.MS0X(1) } } /* - * Function 6. + * Function 6 - Low Power S0 Exit Notification */ If(Arg2 == 6) { - \_SB.PCI0.LPCB.EC0.S0IX(0) + /* Inform the EC */ + If (CondRefOf (\_SB.PCI0.LPCB.EC0.S0IX)) { + \_SB.PCI0.LPCB.EC0.S0IX(0) + } + /* provide board level s0ix hook */ If (CondRefOf (\_SB.MS0X)) { \_SB.MS0X(0) |