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

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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.

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
> >
> 
> 
> 


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