[RFC PATCH 3/4] thermal:core:Add genetlink notifications for monitoring falling temperature
From: Thara Gopinath <hidden>
Date: 2020-07-10 13:52:07
Also in:
linux-pm, lkml
Subsystem:
the rest, thermal · Maintainers:
Linus Torvalds, Rafael J. Wysocki, Daniel Lezcano
Add notification calls for trip type THERMAL_TRIP_COLD when temperature crosses the trip point in either direction. Signed-off-by: Thara Gopinath <redacted> --- drivers/thermal/thermal_core.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 750a89f0c20a..e2302ca1cd3b 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c@@ -429,12 +429,21 @@ static void handle_thermal_trip(struct thermal_zone_device *tz, int trip) tz->ops->get_trip_hyst(tz, trip, &hyst); if (tz->last_temperature != THERMAL_TEMP_INVALID) { - if (tz->last_temperature < trip_temp && - tz->temperature >= trip_temp) - thermal_notify_tz_trip_up(tz->id, trip); - if (tz->last_temperature >= trip_temp && - tz->temperature < (trip_temp - hyst)) - thermal_notify_tz_trip_down(tz->id, trip); + if (type == THERMAL_TRIP_COLD) { + if (tz->last_temperature > trip_temp && + tz->temperature <= trip_temp) + thermal_notify_tz_trip_down(tz->id, trip); + if (tz->last_temperature <= trip_temp && + tz->temperature > (trip_temp + hyst)) + thermal_notify_tz_trip_up(tz->id, trip); + } else { + if (tz->last_temperature < trip_temp && + tz->temperature >= trip_temp) + thermal_notify_tz_trip_up(tz->id, trip); + if (tz->last_temperature >= trip_temp && + tz->temperature < (trip_temp - hyst)) + thermal_notify_tz_trip_down(tz->id, trip); + } } if (type == THERMAL_TRIP_CRITICAL || type == THERMAL_TRIP_HOT)
--
2.25.1