diff options
| author | Varshit B Pandya <varshit.b.pandya@intel.com> | 2022-03-20 22:20:11 +0530 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-08-18 18:24:21 +0000 |
| commit | a872b9a3bb330c4e6b5e20609af7b2c63bb598ba (patch) | |
| tree | 182e525054b15e29649d1e0e5e529c866d58cb03 /src/ec/google/chromeec/acpi | |
| parent | 61b90b173d2f4e958c04e0a0467812f76c10034c (diff) | |
ec/google: Notify DPTF driver power participant on PD event
The DPTF power participant device needs to be notified when power
source changes so it can re-evaluate power source and power source
change count, this can be later used by DPTF along with methods
provided by EC.
Corresponding changes in EC are https://crrev.com/c/3545778 and
https://crrev.com/c/3547317
BUG=b:205928013
TEST=Build, boot brya0 and dump DSDT to check change
Signed-off-by: Varshit B Pandya <varshit.b.pandya@intel.com>
Change-Id: I07f58b928a0dba92bec3817177142c586e5014b9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62946
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
Diffstat (limited to 'src/ec/google/chromeec/acpi')
| -rw-r--r-- | src/ec/google/chromeec/acpi/ec.asl | 9 | ||||
| -rw-r--r-- | src/ec/google/chromeec/acpi/emem.asl | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/acpi/ec.asl b/src/ec/google/chromeec/acpi/ec.asl index c0c1abb9ad..ae4758af8b 100644 --- a/src/ec/google/chromeec/acpi/ec.asl +++ b/src/ec/google/chromeec/acpi/ec.asl @@ -6,6 +6,9 @@ * re-evaluate their _PPC and _CST tables. */ +// DTT Power Participant Device Notification +#define POWER_STATE_CHANGE_NOTIFICATION 0x81 + // Mainboard specific throttle handler #ifdef DPTF_ENABLE_CHARGER External (\_SB.DPTF.TCHG, DeviceObj) @@ -15,6 +18,8 @@ External (\_SB.DPTF.TCHG, DeviceObj) External(\_SB.DPTC, MethodObj) #endif +External (\_SB.DPTF.TPWR, DeviceObj) + Device (EC0) { Name (_HID, EISAID ("PNP0C09")) @@ -82,6 +87,7 @@ Device (EC0) BTID, 8, // Battery index that host wants to read USPP, 8, // USB Port Power RFWU, 8, // Retimer Firmware Update + PBOK, 8, // Power source change count from dptf } #if CONFIG(EC_GOOGLE_CHROMEEC_ACPI_MEMMAP) @@ -345,6 +351,9 @@ Device (EC0) { Printf ("EC: GOT PD EVENT") Notify (\_SB.PCI0.LPCB.EC0.CREC.ECPD, 0x80) + If (CondRefOf (\_SB.DPTF.TPWR)) { + Notify (\_SB.DPTF.TPWR, POWER_STATE_CHANGE_NOTIFICATION) + } } #endif diff --git a/src/ec/google/chromeec/acpi/emem.asl b/src/ec/google/chromeec/acpi/emem.asl index 3eec35eadf..dd59503bb6 100644 --- a/src/ec/google/chromeec/acpi/emem.asl +++ b/src/ec/google/chromeec/acpi/emem.asl @@ -51,3 +51,5 @@ Offset (0x80), ALS0, 16, // ALS reading 0 in lux Offset (0xa6), GPUD, 8, // GPU Data +Offset (0xa7), +PWRT, 8, // Power source and change count |