On Thu, 2017-06-29 at 18:50 +0200, Enric Balletbo i Serra wrote: > Use thermal_set_mode instead of just set the tz_enable variable when > enabling the ACPI thermal driver. The purpose of this change is > trigger > a thermal_zone_device_update when driver switches from disabled to > enabled mode so thermal_zone data is up-to-date. > > Signed-off-by: Enric Balletbo i Serra <[email protected]> > --- > This patch is new from v1 [1] > > [1] https://patchwork.kernel.org/patch/9804229/ > > drivers/acpi/thermal.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c > index 1d0417b..9949458 100644 > --- a/drivers/acpi/thermal.c > +++ b/drivers/acpi/thermal.c > @@ -930,7 +930,9 @@ static int > acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) > if (ACPI_FAILURE(status)) > return -ENODEV; > > - tz->tz_enabled = 1; > + result = thermal_set_mode(tz->thermal_zone, > THERMAL_DEVICE_ENABLED); > + if (result) > + return result;
thermal core is responsible for checking the thermal zone "mode", and set the polling properly, right after thermal_zone_device_being registered. Thus we need to do nothing, but just make sure tz->tz_enabled is set properly before registering the zone. thanks, rui > > dev_info(&tz->device->dev, "registered as thermal_zone%d\n", > tz->thermal_zone->id);
