Duncan Laurie has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/31094
Change subject: ec/google/wilco: Add S0ix support handlers ......................................................................
ec/google/wilco: Add S0ix support handlers
1) In the EC _REG method set the flag indicating S0ix support in the OS.
2) Add a function that can be called by the LPI _DSM method to indicate to the EC that the OS is entering or exiting S0ix.
BUG=b:73137291
Change-Id: Iddc33a08542a6657694c47a9fda1b02dd39d89f7 Signed-off-by: Duncan Laurie dlaurie@google.com --- M src/ec/google/wilco/acpi/ec.asl M src/ec/google/wilco/acpi/ec_ram.asl 2 files changed, 16 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/94/31094/1
diff --git a/src/ec/google/wilco/acpi/ec.asl b/src/ec/google/wilco/acpi/ec.asl index f9b16b5..db4acd4 100644 --- a/src/ec/google/wilco/acpi/ec.asl +++ b/src/ec/google/wilco/acpi/ec.asl @@ -47,6 +47,9 @@ /* Indicate to EC that OS is ready for queries */ W (ERDY, Arg1)
+ /* Indicate that the OS supports S0ix */ + W (CSOS, One) + /* Tell EC to stop emulating PS/2 mouse */ W (PS2M, Zero)
@@ -140,6 +143,17 @@ Return (ECRW (Arg0, Arg1)) }
+ /* + * Tell EC that the OS is entering or exiting S0ix + Method (S0IX, 1, Serialized) + { + If (Arg0) { + W (CSEX, One) + } Else { + W (CSEX, Zero) + } + } + #include "ec_dev.asl" #include "ec_ram.asl" #include "ac.asl" diff --git a/src/ec/google/wilco/acpi/ec_ram.asl b/src/ec/google/wilco/acpi/ec_ram.asl index 1563a3c..1e5d7cb 100644 --- a/src/ec/google/wilco/acpi/ec_ram.asl +++ b/src/ec/google/wilco/acpi/ec_ram.asl @@ -142,3 +142,5 @@ Name (DWTH, Package () { 0x36, 0xff, WR }) /* DPTF: Write Trip High */ Name (DWHY, Package () { 0x37, 0xff, WR }) /* DPTF: Write Hysteresis */ Name (DWTQ, Package () { 0x38, 0xff, WR }) /* DPTF: Write Trip Query */ +Name (CSOS, Package () { 0xb8, 0xff, WR }) /* OS support for S0ix */ +Name (CSEX, Package () { 0xb9, 0xff, WR }) /* OS enter(1)/exit(0) S0ix */