> > +static ssize_t
> > +policy_show(struct device *dev, struct device_attribute *devattr, char
> > +*buf) {
> > + struct thermal_zone_device *tz = to_thermal_zone(dev);
> > + struct thermal_zone_params *tzp = tz->tzp;
> > +
> > + if (!tzp)
> > + return sprintf(buf, "step_wise(default)\n");
> > +
> > + switch (tzp->throttle_policy) {
> > + case THERMAL_FAIR_SHARE:
> > + return sprintf(buf, "fair_share\n");
> > + case THERMAL_STEP_WISE:
> > + return sprintf(buf, "step_wise\n");
> > + case THERMAL_USER_SPACE:
> > + return sprintf(buf, "user_space\n");
> > + default:
> > + return sprintf(buf, "unknown\n");
> > + }
> > +}
> > +
> > static DEVICE_ATTR(type, 0444, type_show, NULL); static
> > DEVICE_ATTR(temp, 0444, temp_show, NULL); static DEVICE_ATTR(mode,
> > 0644, mode_show, mode_store); static DEVICE_ATTR(passive, S_IRUGO |
> > S_IWUSR, passive_show, passive_store);
> > +static DEVICE_ATTR(throttle_policy, S_IRUGO, policy_show, NULL);
> >
> > /* sys I/F for cooling device */
> > #define to_cooling_device(_dev) \
> > @@ -1349,10 +1371,16 @@ static int retrieve_zone_params(struct
> > thermal_zone_device *tz)
> >
> > /* It is not an error to not have any platform data */
> > ret = get_platform_thermal_params(tz);
> > - if (ret)
> > + if (ret) {
> > tz->tzp = NULL;
> > + return 0;
> > + }
> >
> > - return 0;
> > + ret = device_create_file(&tz->device, &dev_attr_throttle_policy);
> > + if (ret)
> > + dev_err(&tz->device, "creating policy attr failed:%d\n",
> > ret);
> > +
> > + return ret;
> > }
> >
> > /**
>
> We should remove this attribute in thermal_zone_device_unregister();
Oh yes, missed it :-(
Will fix in v3..
Thanks for the catch,
Durga
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