---

yaml
---
r: 63948
b: refs/heads/master
c: a70cdc5
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 730ff34de766a6fddee25ac1c32bc49c1a2fd758
+refs/heads/master: a70cdc5200b0eb9fc3ef64efb29baac9b2cf2431

trunk/Documentation/kernel-parameters.txt

@@ -1823,6 +1823,10 @@ and is between 256 and 4096 characters. It is defined in the file
 	thermal.off=	[HW,ACPI]
 			1: disable ACPI thermal control
 
+	thermal.psv=	[HW,ACPI]
+			-1: disable all passive trip points
+			<degrees C>: override all passive trip points to this value
+
 	thermal.tzp=	[HW,ACPI]
 			Specify global default ACPI thermal zone polling rate
 			<deci-seconds>: poll all this frequency

trunk/drivers/acpi/thermal.c

@@ -82,6 +82,10 @@ static int off;
 module_param(off, int, 0);
 MODULE_PARM_DESC(off, "Set to disable ACPI thermal support.\n");
 
+static int psv;
+module_param(psv, int, 0644);
+MODULE_PARM_DESC(psv, "Disable or override all passive trip points.\n");
+
 static int acpi_thermal_add(struct acpi_device *device);
 static int acpi_thermal_remove(struct acpi_device *device, int type);
 static int acpi_thermal_resume(struct acpi_device *device);
@@ -343,9 +347,16 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
 
 	/* Passive: Processors (optional) */
 
-	status =
-	    acpi_evaluate_integer(tz->device->handle, "_PSV", NULL,
-				  &tz->trips.passive.temperature);
+	if (psv == -1) {
+		status = AE_SUPPORT;
+	} else if (psv > 0) {
+		tz->trips.passive.temperature = CELSIUS_TO_KELVIN(psv);
+		status = AE_OK;
+	} else {
+		status = acpi_evaluate_integer(tz->device->handle,
+			"_PSV", NULL, &tz->trips.passive.temperature);
+	}
+
 	if (ACPI_FAILURE(status)) {
 		tz->trips.passive.flags.valid = 0;
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No passive threshold\n"));