Michael Niewöhner has submitted this change. ( https://review.coreboot.org/c/coreboot/+/68789 )
Change subject: soc/intel/common: provide display hook in PEP for ECs ......................................................................
soc/intel/common: provide display hook in PEP for ECs
Provide PEP display notification hook for ECs.
Change-Id: Icbfd294cdd238e63eb947c227a9cf73daca702ef Signed-off-by: Michael Niewöhner foss@mniewoehner.de Reviewed-on: https://review.coreboot.org/c/coreboot/+/68789 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Angel Pons th3fanbus@gmail.com --- M src/soc/intel/common/block/acpi/pep.c 1 file changed, 28 insertions(+), 0 deletions(-)
Approvals: build bot (Jenkins): Verified Angel Pons: Looks good to me, approved
diff --git a/src/soc/intel/common/block/acpi/pep.c b/src/soc/intel/common/block/acpi/pep.c index cd1030c..2ba9f94 100644 --- a/src/soc/intel/common/block/acpi/pep.c +++ b/src/soc/intel/common/block/acpi/pep.c @@ -16,6 +16,7 @@ #define SYSTEM_POWER_MANAGEMENT_HID "INT33A1" #define SYSTEM_POWER_MANAGEMENT_CID "PNP0D80" #define EC_S0IX_HOOK "\_SB.PCI0.LPCB.EC0.S0IX" +#define EC_DISPLAY_HOOK "\_SB.PCI0.LPCB.EC0.EDSX" #define MAINBOARD_HOOK "\_SB.MS0X" #define MAINBOARD_DISPLAY_HOOK "\_SB.MDSX" #define ENABLE_PM_BITS_HOOK "\_SB.PCI0.EGPM" @@ -169,6 +170,12 @@
static void lpi_display_on(void *unused) { + /* Inform the EC */ + acpigen_write_if_cond_ref_of(EC_DISPLAY_HOOK); + acpigen_emit_namestring(EC_DISPLAY_HOOK); + acpigen_write_integer(1); + acpigen_write_if_end(); + /* Provide a board level S0ix hook */ acpigen_write_if_cond_ref_of(MAINBOARD_DISPLAY_HOOK); acpigen_emit_namestring(MAINBOARD_DISPLAY_HOOK); @@ -178,6 +185,12 @@
static void lpi_display_off(void *unused) { + /* Inform the EC */ + acpigen_write_if_cond_ref_of(EC_DISPLAY_HOOK); + acpigen_emit_namestring(EC_DISPLAY_HOOK); + acpigen_write_integer(0); + acpigen_write_if_end(); + /* Provide a board level S0ix hook */ acpigen_write_if_cond_ref_of(MAINBOARD_DISPLAY_HOOK); acpigen_emit_namestring(MAINBOARD_DISPLAY_HOOK);