thermal: intel: pch: Fix unexpected shutdown at critical temperature

Like previous patch, the intel_pch_thermal device is not in ACPI
ThermalZone namespace, so a critical trip doesn't mean shutdown.

Override the default .critical callback to prevent surprising thermal
shutdoown.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20201221172345.36976-2-kai.heng.feng@canonical.com

diff --git a/drivers/thermal/intel/intel_pch_thermal.c b/drivers/thermal/intel/intel_pch_thermal.c
index 41723c6..527c91f 100644 (file)
--- a/drivers/thermal/intel/intel_pch_thermal.c
+++ b/drivers/thermal/intel/intel_pch_thermal.c
@@ -326,10 +326,16 @@ static int pch_get_trip_temp(struct thermal_zone_device *tzd, int trip, int *tem
        return 0;
 }
 
+static void pch_critical(struct thermal_zone_device *tzd)
+{
+       dev_dbg(&tzd->device, "%s: critical temperature reached\n", tzd->type);
+}
+
 static struct thermal_zone_device_ops tzd_ops = {
        .get_temp = pch_thermal_get_temp,
        .get_trip_type = pch_get_trip_type,
        .get_trip_temp = pch_get_trip_temp,
+       .critical = pch_critical,
 };
 
 enum board_ids {