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ec/lenovo/h8/acpi/thermal: Don't hardcode limits 

Add support for board specific critical and passive
limits using GNVS table. Use default values if no
board specific limit exists.

* Add ACPI methods _TZP, _TSP and _PSV.
* Update ACPI method _CRT to use board specific if available.

Tested on Lenovo T500.

Change-Id: If438a909f4415f50cd7a764fb5fba7ec29599606
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/21159
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This commit is contained in:
Patrick Rudolph 2017-06-11 18:19:45 +02:00
parent 959dfc1261
commit 9c7ce28b2f
1 changed files with 25 additions and 0 deletions
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25
src/ec/lenovo/h8/acpi/thermal.asl
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@ -34,9 +34,28 @@ Scope(\_TZ)
ThermalZone(THM0)
{
/* Thermal zone polling frequency: 10 seconds */
Name (_TZP, 100)
/* Thermal sampling period for passive cooling: 10 seconds */
Name (_TSP, 100)
Method(_CRT, 0, NotSerialized) {
Store (\TCRT, Local0)
if (LGreater(Local0, Zero)) {
Return (C2K(Local0))
}
Return (C2K(127))
}
Method(_PSV, 0, NotSerialized) {
Store (\TPSV, Local0)
if (LGreater(Local0, Zero)) {
Return (C2K(Local0))
}
Return (C2K(95))
}
Method(_TMP) {
#if defined (EC_LENOVO_H8_ME_WORKAROUND)
/* Avoid tripping alarm if ME isn't booted at all yet */
@ -51,6 +70,12 @@ Scope(\_TZ)
ThermalZone(THM1)
{
/* Thermal zone polling frequency: 10 seconds */
Name (_TZP, 100)
/* Thermal sampling period for passive cooling: 10 seconds */
Name (_TSP, 100)
Method(_CRT, 0, NotSerialized) {
Return (C2K(99))
}