diff options
Diffstat (limited to 'src/soc/intel/alderlake/acpi')
| -rw-r--r-- | src/soc/intel/alderlake/acpi/gpio.asl | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/acpi/gpio.asl b/src/soc/intel/alderlake/acpi/gpio.asl index 6a1ba0074e..376afaba1e 100644 --- a/src/soc/intel/alderlake/acpi/gpio.asl +++ b/src/soc/intel/alderlake/acpi/gpio.asl @@ -137,3 +137,44 @@ Method (GPID, 1, Serialized) Return (Local0) } + +/* GPIO Power Management bits */ +Name(GPMB, Package(TOTAL_GPIO_COMM) {0, 0, 0, 0, 0, 0}) + +/* + * Save GPIO Power Management bits + */ +Method (SGPM, 0, Serialized) +{ + For (Local0 = 0, Local0 < TOTAL_GPIO_COMM, Local0++) + { + Local1 = GPID (Local0) + GPMB[Local0] = PCRR (Local1, GPIO_MISCCFG) + } +} + +/* + * Restore GPIO Power Management bits + */ +Method (RGPM, 0, Serialized) +{ + For (Local0 = 0, Local0 < TOTAL_GPIO_COMM, Local0++) + { + CGPM (Local0, DerefOf(GPMB[Local0])) + } +} + +/* + * Save current setting of GPIO Power Management bits and + * enable all Power Management bits for all communities + */ +Method (EGPM, 0, Serialized) +{ + /* Save current setting and will restore it when resuming */ + SGPM () + /* Enable PM bits */ + For (Local0 = 0, Local0 < TOTAL_GPIO_COMM, Local0++) + { + CGPM (Local0, MISCCFG_GPIO_PM_CONFIG_BITS) + } +} |