For now, thermal governors do not support monitoring of falling temperature. Hence, in case of calls to the governor for trip points marked as cold, return doing nothing.
Signed-off-by: Thara Gopinath <[email protected]> --- drivers/thermal/gov_bang_bang.c | 8 ++++++++ drivers/thermal/gov_fair_share.c | 8 ++++++++ drivers/thermal/gov_power_allocator.c | 8 ++++++++ drivers/thermal/gov_step_wise.c | 8 ++++++++ 4 files changed, 32 insertions(+) diff --git a/drivers/thermal/gov_bang_bang.c b/drivers/thermal/gov_bang_bang.c index 991a1c54296d..8324d13de1e7 100644 --- a/drivers/thermal/gov_bang_bang.c +++ b/drivers/thermal/gov_bang_bang.c @@ -99,6 +99,14 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip) static int bang_bang_control(struct thermal_zone_device *tz, int trip) { struct thermal_instance *instance; + enum thermal_trip_type trip_type; + + /* Return doing nothing in case of cold trip point */ + if (trip != THERMAL_TRIPS_NONE) { + tz->ops->get_trip_type(tz, trip, &trip_type); + if (trip_type == THERMAL_TRIP_COLD) + return 0; + } thermal_zone_trip_update(tz, trip); diff --git a/drivers/thermal/gov_fair_share.c b/drivers/thermal/gov_fair_share.c index aaa07180ab48..c0adce525faa 100644 --- a/drivers/thermal/gov_fair_share.c +++ b/drivers/thermal/gov_fair_share.c @@ -81,6 +81,14 @@ static int fair_share_throttle(struct thermal_zone_device *tz, int trip) int total_weight = 0; int total_instance = 0; int cur_trip_level = get_trip_level(tz); + enum thermal_trip_type trip_type; + + /* Return doing nothing in case of cold trip point */ + if (trip != THERMAL_TRIPS_NONE) { + tz->ops->get_trip_type(tz, trip, &trip_type); + if (trip_type == THERMAL_TRIP_COLD) + return 0; + } list_for_each_entry(instance, &tz->thermal_instances, tz_node) { if (instance->trip != trip) diff --git a/drivers/thermal/gov_power_allocator.c b/drivers/thermal/gov_power_allocator.c index 44636475b2a3..2644ad4d4032 100644 --- a/drivers/thermal/gov_power_allocator.c +++ b/drivers/thermal/gov_power_allocator.c @@ -613,8 +613,16 @@ static int power_allocator_throttle(struct thermal_zone_device *tz, int trip) { int ret; int switch_on_temp, control_temp; + enum thermal_trip_type trip_type; struct power_allocator_params *params = tz->governor_data; + /* Return doing nothing in case of cold trip point */ + if (trip != THERMAL_TRIPS_NONE) { + tz->ops->get_trip_type(tz, trip, &trip_type); + if (trip_type == THERMAL_TRIP_COLD) + return 0; + } + /* * We get called for every trip point but we only need to do * our calculations once diff --git a/drivers/thermal/gov_step_wise.c b/drivers/thermal/gov_step_wise.c index 2ae7198d3067..009aefda0441 100644 --- a/drivers/thermal/gov_step_wise.c +++ b/drivers/thermal/gov_step_wise.c @@ -186,6 +186,14 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip) static int step_wise_throttle(struct thermal_zone_device *tz, int trip) { struct thermal_instance *instance; + enum thermal_trip_type trip_type; + + /* For now, return doing nothing in case of cold trip point */ + if (trip != THERMAL_TRIPS_NONE) { + tz->ops->get_trip_type(tz, trip, &trip_type); + if (trip_type == THERMAL_TRIP_COLD) + return 0; + } thermal_zone_trip_update(tz, trip); -- 2.25.1
