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path: root/drivers/acpi/thermal.c
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Diffstat (limited to 'drivers/acpi/thermal.c')
-rw-r--r--drivers/acpi/thermal.c41
1 files changed, 18 insertions, 23 deletions
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 419590f41ed5..312730f8272e 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -492,26 +492,22 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, int *temp)
}
static int thermal_get_trend(struct thermal_zone_device *thermal,
- int trip_index, enum thermal_trend *trend)
+ const struct thermal_trip *trip,
+ enum thermal_trend *trend)
{
struct acpi_thermal *tz = thermal_zone_device_priv(thermal);
struct acpi_thermal_trip *acpi_trip;
- int t, i;
+ int t;
- if (!tz || trip_index < 0)
+ if (!tz || !trip)
return -EINVAL;
- if (tz->trips.critical.valid)
- trip_index--;
-
- if (tz->trips.hot.valid)
- trip_index--;
-
- if (trip_index < 0)
+ acpi_trip = trip->priv;
+ if (!acpi_trip || !acpi_trip->valid)
return -EINVAL;
- acpi_trip = &tz->trips.passive.trip;
- if (acpi_trip->valid && !trip_index--) {
+ switch (trip->type) {
+ case THERMAL_TRIP_PASSIVE:
t = tz->trips.passive.tc1 * (tz->temperature -
tz->last_temperature) +
tz->trips.passive.tc2 * (tz->temperature -
@@ -524,19 +520,18 @@ static int thermal_get_trend(struct thermal_zone_device *thermal,
*trend = THERMAL_TREND_STABLE;
return 0;
- }
-
- t = acpi_thermal_temp(tz, tz->temperature);
- for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
- acpi_trip = &tz->trips.active[i].trip;
- if (acpi_trip->valid && !trip_index--) {
- if (t > acpi_thermal_temp(tz, acpi_trip->temperature)) {
- *trend = THERMAL_TREND_RAISING;
- return 0;
- }
+ case THERMAL_TRIP_ACTIVE:
+ t = acpi_thermal_temp(tz, tz->temperature);
+ if (t <= trip->temperature)
break;
- }
+
+ *trend = THERMAL_TREND_RAISING;
+
+ return 0;
+
+ default:
+ break;
}
return -EINVAL;