From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keerthy Subject: Re: [PATCH v5 3/5] thermal: streamline get_trend callbacks Date: Tue, 7 Jun 2016 11:44:46 +0530 Message-ID: <57566656.4010002@ti.com> References: <1465213489-14898-1-git-send-email-wxt@rock-chips.com> <1465213489-14898-4-git-send-email-wxt@rock-chips.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1465213489-14898-4-git-send-email-wxt-TNX95d0MmH7DzftRWevZcw@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+glpar-linux-rockchip=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org To: Caesar Wang , edubezval-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: huangtao-TNX95d0MmH7DzftRWevZcw@public.gmane.org, javi.merino-5wv7dgnIgG8@public.gmane.org, Heiko Stuebner , Keerthy , Sascha Hauer , dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, peter-p08lbbvQ7EI@public.gmane.org, dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, smbarber-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, cf-TNX95d0MmH7DzftRWevZcw@public.gmane.org, briannorris-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, Zhang Rui , linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-omap@vger.kernel.org On Monday 06 June 2016 05:14 PM, Caesar Wang wrote: > From: Sascha Hauer > > 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. Tested this patch on omap5-uevm using emulation feature and saw that cooling state was getting updated correctly w.r.t trip point tempereatures. A minor comment below apart from that. Reviewed-by: Keerthy > > Signed-off-by: Sascha Hauer > Signed-off-by: Caesar Wang > Cc: Zhang Rui > Cc: Eduardo Valentin > Cc: linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > --- > > Changes in v5: None > Changes in v4: None > Changes in v3: None > Changes in v2: None > > 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 2d2a06f..ba72c35 100644 > --- a/drivers/thermal/of-thermal.c > +++ b/drivers/thermal/of-thermal.c > @@ -202,24 +202,15 @@ 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; int r = 0; > > 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; no need of this if check just 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 15c0a9a..4a6757c 100644 > --- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c > +++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c > @@ -239,7 +239,7 @@ 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; > @@ -252,22 +252,6 @@ 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) > @@ -278,6 +262,13 @@ 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, > int *temp) > diff --git a/include/linux/thermal.h b/include/linux/thermal.h > index 2440b8d..d3ce3a5 100644 > --- a/include/linux/thermal.h > +++ b/include/linux/thermal.h > @@ -352,7 +352,7 @@ struct thermal_genl_event { > */ > struct thermal_zone_of_device_ops { > int (*get_temp)(void *, int *); > - int (*get_trend)(void *, long *); > + int (*get_trend)(void *, int, enum thermal_trend *); > int (*set_trips)(void *, int, int); > int (*set_emul_temp)(void *, int); > int (*set_trip_temp)(void *, int, int); >