From 8be6759f79b033f4f87c49d340ee935e38b55f20 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Thu, 9 Jan 2014 10:01:05 -0800 Subject: [PATCH] chrome ec: Fix temperature calcualtion in PATx methods MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The PATx methods will be passed a temperature in deci-kelvin, so it needs to be converted back to kelvin before being sent to the EC. The PAT disable method is changed to take the temperature ID as an argument so individual sensors can be disabled. BUG=chrome-os-partner:17279 BRANCH=rambi TEST=build and boot on rambi, load esif_lf kernel drivers and esif_uf userspace application. Start and stop DPTF and see that temperature thresholds are set to sane values. Change-Id: Ieeff5a5d2d833042923c059caf3e5abaf392da95 Signed-off-by: Duncan Laurie Reviewed-on: https://chromium-review.googlesource.com/182023 Reviewed-by: Aaron Durbin Signed-off-by: Aaron Durbin Reviewed-on: http://review.coreboot.org/5036 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki --- src/ec/google/chromeec/acpi/ec.asl | 32 +++++++++++++++--------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/src/ec/google/chromeec/acpi/ec.asl b/src/ec/google/chromeec/acpi/ec.asl index c931225677..1cadcc882d 100644 --- a/src/ec/google/chromeec/acpi/ec.asl +++ b/src/ec/google/chromeec/acpi/ec.asl @@ -299,13 +299,14 @@ Device (EC0) Return (0) } - Store ("EC: PAT0", Debug) - /* Set sensor ID */ Store (ToInteger (Arg0), ^PATI) - /* Adjust by offset to get Kelvin and set Threshold */ - Add (ToInteger (Arg1), ^TOFS, ^PATT) + /* Temperature is passed in 1/10 Kelvin */ + Divide (ToInteger (Arg1), 10, Local0, Local1) + + /* Adjust by EC temperature offset */ + Subtract (Local1, ^TOFS, ^PATT) /* Set commit value with SELECT=0 and ENABLE=1 */ Store (0x02, ^PATC) @@ -325,13 +326,14 @@ Device (EC0) Return (0) } - Store ("EC: PAT1", Debug) - /* Set sensor ID */ Store (ToInteger (Arg0), ^PATI) - /* Adjust by offset to get Kelvin and set Threshold */ - Add (ToInteger (Arg1), ^TOFS, ^PATT) + /* Temperature is passed in 1/10 Kelvin */ + Divide (ToInteger (Arg1), 10, Local0, Local1) + + /* Adjust by EC temperature offset */ + Subtract (Local1, ^TOFS, ^PATT) /* Set commit value with SELECT=1 and ENABLE=1 */ Store (0x03, ^PATC) @@ -340,16 +342,16 @@ Device (EC0) Return (1) } - /* Disable Aux Trip Points */ - Method (PATD) + /* Disable Aux Trip Points + * Arg0 = Temp Sensor ID + */ + Method (PATD, 1, Serialized) { If (Acquire (^PATM, 1000)) { Return (0) } - Store ("EC: PAT Disable", Debug) - - Store (0x00, ^PATI) + Store (ToInteger (Arg0), ^PATI) Store (0x00, ^PATT) /* Disable PAT0 */ @@ -365,14 +367,12 @@ Device (EC0) /* * Thermal Threshold Event */ - Method (_Q09, 0, Serialized) + Method (_Q09, 0, NotSerialized) { If (Acquire (^PATM, 1000)) { Return () } - Store ("EC: THERMAL THRESHOLD", Debug) - /* Read sensor ID for event */ Store (^PATI, Local0)