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The _store callbacks of the trip point temperature and hysteresis sysfs attributes invoke thermal_notify_tz_trip_change() to send a notification regarding the trip point change, but when trip points are updated by the platform firmware, trip point change notifications are not sent. To make the behavior after a trip point change more consistent, modify all of the 3 places where trip point temperature is updated to use a new function called thermal_zone_set_trip_temp() for this purpose and make that function call thermal_notify_tz_trip_change(). Note that trip point hysteresis can only be updated via sysfs and trip_point_hyst_store() calls thermal_notify_tz_trip_change() already, so this code path need not be changed. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>