Re: [PATCH V4 05/13] Thermal: Remove tc1/tc2 in generic thermal layer.

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Hello,

On Thu, Aug 9, 2012 at 3:57 AM, Zhang Rui <rui.zhang@xxxxxxxxx> wrote:
>
> On 三, 2012-08-08 at 17:06 +0300, Valentin, Eduardo wrote:
> > Hello Rui,
> >
> > On Thu, Jul 26, 2012 at 11:41 AM, Zhang Rui <rui.zhang@xxxxxxxxx> wrote:
> > > Remove tc1/tc2 in generic thermal layer.
> > > .get_trend() callback starts to take effect from this patch.
> > >
> > > Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
> >
> > I believe you have to refresh this patch. At least it is not applying
> > on 3.6-rc1. With minor changes I could check it though.
> >
> > > ---
> > >  drivers/acpi/thermal.c                   |    5 +----
> > >  drivers/platform/x86/acerhdf.c           |    2 +-
> > >  drivers/platform/x86/intel_mid_thermal.c |    2 +-
> > >  drivers/thermal/spear_thermal.c          |    2 +-
> > >  drivers/thermal/thermal_sys.c            |   24
> > > ++++++------------------
> > >  include/linux/thermal.h                  |    5 +----
> >
> > Again, simple thing here is that it would be good if you include in
> > your patch the change on omap-thermal-common.c:
> > drivers/staging/omap-thermal/omap-thermal-common.c: In function
> > 'omap_thermal_expose_sensor':
> > drivers/staging/omap-thermal/omap-thermal-common.c:251: error: too
> > many arguments to function 'thermal_zone_device_register'
> > make[3]: *** [drivers/staging/omap-thermal/omap-thermal-common.o] Error
> > 1
> > make[2]: *** [drivers/staging/omap-thermal] Error 2
> > make[1]: *** [drivers/staging] Error 2
> > make[1]: *** Waiting for unfinished jobs....
> >
> > And looks like you missed the psy_register_thermal
> > (power_supply_core.c):
> >
> > drivers/power/power_supply_core.c: In function 'psy_register_thermal':
> > drivers/power/power_supply_core.c:204: error: too many arguments to
> > function 'thermal_zone_device_register'
> > make[2]: *** [drivers/power/power_supply_core.o] Error 1
> > make[1]: *** [drivers/power] Error 2
> > make[1]: *** Waiting for unfinished jobs....
> > make: *** [drivers] Error 2
> > make: *** Waiting for unfinished jobs....
> >
> >
> > FYR:
> > diff --git a/drivers/power/power_supply_core.c
> > b/drivers/power/power_supply_core.c
> > index 08cc8a3..2436f13 100644
> > --- a/drivers/power/power_supply_core.c
> > +++ b/drivers/power/power_supply_core.c
> > @@ -201,7 +201,7 @@ static int psy_register_thermal(struct power_supply
> > *psy)
> >         for (i = 0; i < psy->num_properties; i++) {
> >                 if (psy->properties[i] == POWER_SUPPLY_PROP_TEMP) {
> >                         psy->tzd =
> > thermal_zone_device_register(psy->name, 0, 0,
> > -                                       psy, &psy_tzd_ops, 0, 0, 0, 0);
> > +                                       psy, &psy_tzd_ops, 0, 0);
> >                         if (IS_ERR(psy->tzd))
> >                                 return PTR_ERR(psy->tzd);
> >                         break;
>
> I have fixed this one in my git tree.
>
> > diff --git a/drivers/staging/omap-thermal/omap-thermal-common.c
> > b/drivers/staging/omap-thermal/omap-thermal-common.c
> > index c1f00c6..b4cd6cc 100644
> > --- a/drivers/staging/omap-thermal/omap-thermal-common.c
> > +++ b/drivers/staging/omap-thermal/omap-thermal-common.c
> > @@ -248,7 +248,7 @@ int omap_thermal_expose_sensor(struct omap_bandgap
> > *bg_ptr, int id,
> >         /* Create thermal zone */
> >         data->omap_thermal = thermal_zone_device_register(domain,
> >                                 OMAP_TRIP_NUMBER, 0, data,
> > &omap_thermal_ops,
> > -                               0, FAST_TEMP_MONITORING_RATE, 0, 0);
> > +                               0, FAST_TEMP_MONITORING_RATE);
> hmm, FAST_TEMP_MONITORING_RATE is the polling frequency and you put it
> in the wrong place in your original code, right?
>
> >         if (IS_ERR_OR_NULL(data->omap_thermal)) {
> >                 dev_err(bg_ptr->dev, "thermal zone device is NULL\n");
> >                 return PTR_ERR(data->omap_thermal);
> >
> I missed this one. :)
> I'll fixed it in my tree.

(resending the mail so that it reaches the mailing lists)

Nice, I checked your tree and this patch is fine for me. Next time you
send it out, you may want to add my reviewed-by:

Reviewed-by: Eduardo Valentin <eduardo.valentin@xxxxxx>


>
> thanks,
> rui
> > Apart from the compilation issues and the needed patch refresh, I am
> > good with the patch. And thanks for pushing this forward.
> >
> > >  6 files changed, 11 insertions(+), 29 deletions(-)
> > >
> > > diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> > > index 0c49e42..0c755d2 100644
> > > --- a/drivers/acpi/thermal.c
> > > +++ b/drivers/acpi/thermal.c
> > > @@ -895,15 +895,12 @@ static int
> > > acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
> > >                 tz->thermal_zone =
> > >                         thermal_zone_device_register("acpitz", trips,
> > > 0, tz,
> > >
> > > &acpi_thermal_zone_ops,
> > > -
> > > tz->trips.passive.tc1,
> > > -
> > > tz->trips.passive.tc2,
> > >
> > > tz->trips.passive.tsp*100,
> > >
> > > tz->polling_frequency*100);
> > >         else
> > >                 tz->thermal_zone =
> > >                         thermal_zone_device_register("acpitz", trips,
> > > 0, tz,
> > > -
> > > &acpi_thermal_zone_ops,
> > > -                                                    0, 0, 0,
> > > +
> > > &acpi_thermal_zone_ops, 0,
> > >
> > > tz->polling_frequency*100);
> > >         if (IS_ERR(tz->thermal_zone))
> > >                 return -ENODEV;
> > > diff --git a/drivers/platform/x86/acerhdf.c
> > > b/drivers/platform/x86/acerhdf.c
> > > index a207466..84c5688 100644
> > > --- a/drivers/platform/x86/acerhdf.c
> > > +++ b/drivers/platform/x86/acerhdf.c
> > > @@ -662,7 +662,7 @@ static int acerhdf_register_thermal(void)
> > >                 return -EINVAL;
> > >
> > >         thz_dev = thermal_zone_device_register("acerhdf", 1, 0, NULL,
> > > -                                             &acerhdf_dev_ops, 0, 0,
> > > 0,
> > > +                                             &acerhdf_dev_ops, 0,
> > >                                               (kernelmode) ?
> > > interval*1000 : 0);
> > >         if (IS_ERR(thz_dev))
> > >                 return -EINVAL;
> > > diff --git a/drivers/platform/x86/intel_mid_thermal.c
> > > b/drivers/platform/x86/intel_mid_thermal.c
> > > index 2b2c212..6e309dd 100644
> > > --- a/drivers/platform/x86/intel_mid_thermal.c
> > > +++ b/drivers/platform/x86/intel_mid_thermal.c
> > > @@ -499,7 +499,7 @@ static int mid_thermal_probe(struct
> > > platform_device *pdev)
> > >                         goto err;
> > >                 }
> > >                 pinfo->tzd[i] = thermal_zone_device_register(name[i],
> > > -                               0, 0, td_info, &tzd_ops, 0, 0, 0, 0);
> > > +                               0, 0, td_info, &tzd_ops, 0, 0);
> > >                 if (IS_ERR(pinfo->tzd[i])) {
> > >                         kfree(td_info);
> > >                         ret = PTR_ERR(pinfo->tzd[i]);
> > > diff --git a/drivers/thermal/spear_thermal.c
> > > b/drivers/thermal/spear_thermal.c
> > > index 69a55d4..b55840a 100644
> > > --- a/drivers/thermal/spear_thermal.c
> > > +++ b/drivers/thermal/spear_thermal.c
> > > @@ -148,7 +148,7 @@ static int spear_thermal_probe(struct
> > > platform_device *pdev)
> > >         writel_relaxed(stdev->flags, stdev->thermal_base);
> > >
> > >         spear_thermal = thermal_zone_device_register("spear_thermal",
> > > 0, 0,
> > > -                               stdev, &ops, 0, 0, 0, 0);
> > > +                               stdev, &ops, 0, 0);
> > >         if (IS_ERR(spear_thermal)) {
> > >                 dev_err(&pdev->dev, "thermal zone device is NULL\n");
> > >                 ret = PTR_ERR(spear_thermal);
> > > diff --git a/drivers/thermal/thermal_sys.c
> > > b/drivers/thermal/thermal_sys.c
> > > index 68c93d4..a70ed4c 100644
> > > --- a/drivers/thermal/thermal_sys.c
> > > +++ b/drivers/thermal/thermal_sys.c
> > > @@ -335,9 +335,6 @@ passive_store(struct device *dev, struct
> > > device_attribute *attr,
> > >                 tz->passive_delay = 0;
> > >         }
> > >
> > > -       tz->tc1 = 1;
> > > -       tz->tc2 = 1;
> > > -
> > >         tz->forced_passive = state;
> > >
> > >         thermal_zone_device_update(tz);
> > > @@ -718,13 +715,12 @@ static void
> > > thermal_zone_device_set_polling(struct thermal_zone_device *tz,
> > >  static void thermal_zone_device_passive(struct thermal_zone_device
> > > *tz,
> > >                                         int temp, int trip_temp, int
> > > trip)
> > >  {
> > > -       int trend = 0;
> > > +       enum thermal_trend trend;
> > >         struct thermal_cooling_device_instance *instance;
> > >         struct thermal_cooling_device *cdev;
> > >         long state, max_state;
> > >
> > > -       if (!tz->ops->get_trend ||
> > > -           tz->ops->get_trend(tz, trip, (enum thermal_trend
> > > *)&trend)) {
> > > +       if (!tz->ops->get_trend || tz->ops->get_trend(tz, trip,
> > > &trend)) {
> > >                 /*
> > >                  * compare the current temperature and previous
> > > temperature
> > >                  * to get the thermal trend, if no special requirement
> > > @@ -747,11 +743,8 @@ static void thermal_zone_device_passive(struct
> > > thermal_zone_device *tz,
> > >         if (temp >= trip_temp) {
> > >                 tz->passive = true;
> > >
> > > -               trend = (tz->tc1 * (temp - tz->last_temperature)) +
> > > -                       (tz->tc2 * (temp - trip_temp));
> > > -
> > >                 /* Heating up? */
> > > -               if (trend > 0) {
> > > +               if (trend == THERMAL_TREND_RAISING) {
> > >                         list_for_each_entry(instance,
> > > &tz->cooling_devices,
> > >                                             node) {
> > >                                 if (instance->trip != trip)
> > > @@ -762,7 +755,7 @@ static void thermal_zone_device_passive(struct
> > > thermal_zone_device *tz,
> > >                                 if (state++ < max_state)
> > >                                         cdev->ops->set_cur_state(cdev,
> > > state);
> > >                         }
> > > -               } else if (trend < 0) { /* Cooling off? */
> > > +               } else if (trend == THERMAL_TREND_DROPPING) { /*
> > > Cooling off? */
> > >                         list_for_each_entry(instance,
> > > &tz->cooling_devices,
> > >                                             node) {
> > >                                 if (instance->trip != trip)
> > > @@ -1288,8 +1281,6 @@ static void remove_trip_attrs(struct
> > > thermal_zone_device *tz)
> > >   * @mask:      a bit string indicating the writeablility of trip
> > > points
> > >   * @devdata:   private device data
> > >   * @ops:       standard thermal zone device callbacks
> > > - * @tc1:       thermal coefficient 1 for passive calculations
> > > - * @tc2:       thermal coefficient 2 for passive calculations
> > >   * @passive_delay: number of milliseconds to wait between polls when
> > >   *                performing passive cooling
> > >   * @polling_delay: number of milliseconds to wait between polls when
> > > checking
> > > @@ -1297,13 +1288,12 @@ static void remove_trip_attrs(struct
> > > thermal_zone_device *tz)
> > >   *                driven systems)
> > >   *
> > >   * thermal_zone_device_unregister() must be called when the device is
> > > no
> > > - * longer needed. The passive cooling formula uses tc1 and tc2 as
> > > described in
> > > - * section 11.1.5.1 of the ACPI specification 3.0.
> > > + * longer needed. The passive cooling depends on the .get_trend()
> > > return value.
> > >   */
> > >  struct thermal_zone_device *thermal_zone_device_register(char *type,
> > >         int trips, int mask, void *devdata,
> > >         const struct thermal_zone_device_ops *ops,
> > > -       int tc1, int tc2, int passive_delay, int polling_delay)
> > > +       int passive_delay, int polling_delay)
> > >  {
> > >         struct thermal_zone_device *tz;
> > >         struct thermal_cooling_device *pos;
> > > @@ -1339,8 +1329,6 @@ struct thermal_zone_device
> > > *thermal_zone_device_register(char *type,
> > >         tz->device.class = &thermal_class;
> > >         tz->devdata = devdata;
> > >         tz->trips = trips;
> > > -       tz->tc1 = tc1;
> > > -       tz->tc2 = tc2;
> > >         tz->passive_delay = passive_delay;
> > >         tz->polling_delay = polling_delay;
> > >
> > > diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> > > index a01e3e6..d18dcf6 100644
> > > --- a/include/linux/thermal.h
> > > +++ b/include/linux/thermal.h
> > > @@ -115,8 +115,6 @@ struct thermal_zone_device {
> > >         struct thermal_attr *trip_hyst_attrs;
> > >         void *devdata;
> > >         int trips;
> > > -       int tc1;
> > > -       int tc2;
> > >         int passive_delay;
> > >         int polling_delay;
> > >         int temperature;
> > > @@ -163,8 +161,7 @@ enum {
> > >  #define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
> > >
> > >  struct thermal_zone_device *thermal_zone_device_register(char *, int,
> > > int,
> > > -               void *, const struct thermal_zone_device_ops *, int
> > > tc1,
> > > -               int tc2, int passive_freq, int polling_freq);
> > > +               void *, const struct thermal_zone_device_ops *, int,
> > > int);
> > >  void thermal_zone_device_unregister(struct thermal_zone_device *);
> > >
> > >  int thermal_zone_bind_cooling_device(struct thermal_zone_device *,
> > > int,
> > > --
> > > 1.7.9.5
> > >
> >
> >
> >
>
>



--

Eduardo Valentin
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