On Fri, 2020-07-10 at 09:51 -0400, Thara Gopinath wrote:
> Add notification calls for trip type THERMAL_TRIP_COLD when
> temperature
> crosses the trip point in either direction.
>
> Signed-off-by: Thara Gopinath <thara.gopinath@xxxxxxxxxx>
> ---
> 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);
trip_type should also be part of the event because trip_down/trip_up
for hot trip and cold trip have different meanings.
Or can we use some more generic names like trip_on/trip_off? trip_on
means the trip point is violated or actions need to be taken for the
specific trip points, for both hot and cold trips. I know
trip_on/trip_off doesn't represent what I mean clearly, but surely you
can find a better name.
thanks,
rui
> + 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)
