On Thu, Mar 26, 2015 at 04:53:53PM +0100, Sascha Hauer wrote: > The .get_trend callback in struct thermal_zone_device_ops has the prototype: > > int (*get_trend) (struct thermal_zone_device *, int, > enum thermal_trend *); > > whereas the .get_trend callback in struct thermal_zone_of_device_ops has: > > int (*get_trend)(void *, long *); > > Streamline both prototypes and add the trip argument to the OF callback > aswell and use enum thermal_trend * instead of an integer pointer. > > While the OF prototype may be the better one, this should be decided at > framework level and not on OF level. > > Signed-off-by: Sascha Hauer > --- > drivers/thermal/of-thermal.c | 11 +--------- > drivers/thermal/ti-soc-thermal/ti-thermal-common.c | 25 +++++++--------------- > include/linux/thermal.h | 2 +- > 3 files changed, 10 insertions(+), 28 deletions(-) > > diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c > index 668fb1b..b39e22f 100644 > --- a/drivers/thermal/of-thermal.c > +++ b/drivers/thermal/of-thermal.c > @@ -187,24 +187,15 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip, > enum thermal_trend *trend) > { > struct __thermal_zone *data = tz->devdata; > - long dev_trend; > int r; > > if (!data->ops->get_trend) > return -EINVAL; > > - r = data->ops->get_trend(data->sensor_data, &dev_trend); > + r = data->ops->get_trend(data->sensor_data, trip, trend); > if (r) > return r; > > - /* TODO: These intervals might have some thresholds, but in core code */ > - if (dev_trend > 0) > - *trend = THERMAL_TREND_RAISING; > - else if (dev_trend < 0) > - *trend = THERMAL_TREND_DROPPING; > - else > - *trend = THERMAL_TREND_STABLE; > - > return 0; > } > > diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c > index a38c175..7f8e5f3 100644 > --- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c > +++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c > @@ -238,7 +238,7 @@ static int ti_thermal_get_trip_temp(struct thermal_zone_device *thermal, > return 0; > } > > -static int __ti_thermal_get_trend(void *p, long *trend) > +static int __ti_thermal_get_trend(void *p, int trip, enum thermal_trend *trend) > { > struct ti_thermal_data *data = p; > struct ti_bandgap *bgp; > @@ -251,22 +251,6 @@ static int __ti_thermal_get_trend(void *p, long *trend) > if (ret) > return ret; > > - *trend = tr; > - > - return 0; > -} > - > -/* Get the temperature trend callback functions for thermal zone */ > -static int ti_thermal_get_trend(struct thermal_zone_device *thermal, > - int trip, enum thermal_trend *trend) > -{ > - int ret; > - long tr; > - > - ret = __ti_thermal_get_trend(thermal->devdata, &tr); > - if (ret) > - return ret; > - > if (tr > 0) > *trend = THERMAL_TREND_RAISING; > else if (tr < 0) > @@ -277,6 +261,13 @@ static int ti_thermal_get_trend(struct thermal_zone_device *thermal, > return 0; > } > > +/* Get the temperature trend callback functions for thermal zone */ > +static int ti_thermal_get_trend(struct thermal_zone_device *thermal, > + int trip, enum thermal_trend *trend) > +{ > + return __ti_thermal_get_trend(thermal->devdata, trip, trend); > +} > + > /* Get critical temperature callback functions for thermal zone */ > static int ti_thermal_get_crit_temp(struct thermal_zone_device *thermal, > unsigned long *temp) > diff --git a/include/linux/thermal.h b/include/linux/thermal.h > index db6c12b..ba2e29a 100644 > --- a/include/linux/thermal.h > +++ b/include/linux/thermal.h > @@ -273,7 +273,7 @@ struct thermal_genl_event { > */ > struct thermal_zone_of_device_ops { > int (*get_temp)(void *, long *); > - int (*get_trend)(void *, long *); > + int (*get_trend)(void *, int trend, enum thermal_trend *); Could you please keep the kernel doc entry up to date? Apart from that, looks good to me. > int (*set_emul_temp)(void *, unsigned long); > }; > > -- > 2.1.4 >