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| author | Michael Niewöhner <foss@mniewoehner.de> | 2022-05-18 22:27:13 +0200 |
|---|---|---|
| committer | Michael Niewöhner <foss@mniewoehner.de> | 2022-11-02 21:04:00 +0000 |
| commit | a972e238dd63beca0c60bf00c6e1cef0bed95d27 (patch) | |
| tree | 40113c2c71390f26c594cfe36169764328cb4818 /src/soc/intel/common | |
| parent | 060dc7b26d47d9750d0692340761ba34942b1545 (diff) | |
| download | coreboot-a972e238dd63beca0c60bf00c6e1cef0bed95d27.tar.gz coreboot-a972e238dd63beca0c60bf00c6e1cef0bed95d27.tar.bz2 coreboot-a972e238dd63beca0c60bf00c6e1cef0bed95d27.zip | |
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>
Diffstat (limited to 'src/soc/intel/common')
| -rw-r--r-- | src/soc/intel/common/block/acpi/pep.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/acpi/pep.c b/src/soc/intel/common/block/acpi/pep.c index cd1030cb8e5d..2ba9f94573dc 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_s0ix_exit(void *unused) 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_on(void *unused) 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); |