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soc/intel/cannonlake: Make EC S0ix notification optional in LPIT 

Only call the \_SB.PCI0.LPCB.EC0.S0IX method if it exists.

Change-Id: Idf465f8ad7cb016f3ad3d9710b46e35f66f8939b
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34178
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Shaunak Saha <shaunak.saha@intel.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
This commit is contained in:
Tim Wawrzynczak 2019-07-09 13:39:44 -06:00 committed by Martin Roth
parent 565b0aada9
commit 20cfc87ca0
1 changed files with 17 additions and 8 deletions
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25
src/soc/intel/cannonlake/acpi/lpit.asl
View File

@ -15,6 +15,7 @@
*/ */
External(\_SB.MS0X, MethodObj) External(\_SB.MS0X, MethodObj)
External(\_SB.PCI0.LPCB.EC0.S0IX, MethodObj)
scope(\_SB) scope(\_SB)
{ {
@ -34,7 +35,7 @@ scope(\_SB)
) )
} }
/* /*
* Function 1. * Function 1 - Get Device Constraints
*/ */
If(Arg2 == 1) { If(Arg2 == 1) {
Return(Package(5) { Return(Package(5) {
@ -42,7 +43,7 @@ scope(\_SB)
) )
} }
/* /*
* Function 2. * Function 2 - Get Crash Dump Device
*/ */
If(Arg2 == 2) { If(Arg2 == 2) {
Return(Buffer(One) { Return(Buffer(One) {
@ -50,30 +51,38 @@ scope(\_SB)
) )
} }
/* /*
* Function 3. * Function 3 - Display Off Notification
*/ */
If(Arg2 == 3) { If(Arg2 == 3) {
} }
/* /*
* Function 4. * Function 4 - Display On Notification
*/ */
If(Arg2 == 4) { If(Arg2 == 4) {
} }
/* /*
* Function 5. * Function 5 - Low Power S0 Entry Notification
*/ */
If(Arg2 == 5) { 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 */ /* provide board level s0ix hook */
If (CondRefOf (\_SB.MS0X)) { If (CondRefOf (\_SB.MS0X)) {
\_SB.MS0X(1) \_SB.MS0X(1)
} }
} }
/* /*
* Function 6. * Function 6 - Low Power S0 Exit Notification
*/ */
If(Arg2 == 6) { 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 */ /* provide board level s0ix hook */
If (CondRefOf (\_SB.MS0X)) { If (CondRefOf (\_SB.MS0X)) {
\_SB.MS0X(0) \_SB.MS0X(0)