[09/13] thermal: of: always set sensor related callbacks
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Message ID 1427385240-6086-10-git-send-email-s.hauer@pengutronix.de
State Changes Requested
Delegated to: Eduardo Valentin
Headers show

Commit Message

Sascha Hauer March 26, 2015, 3:53 p.m. UTC
Now that the thermal core treats -ENOSYS like the callbacks were
not present at all we no longer have to overwrite the ops during
runtime but instead can always set them and return -ENOSYS if no
sensor is registered.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/thermal/of-thermal.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

Comments

Eduardo Valentin April 7, 2015, 3:25 a.m. UTC | #1
On Thu, Mar 26, 2015 at 04:53:56PM +0100, Sascha Hauer wrote:
> Now that the thermal core treats -ENOSYS like the callbacks were
> not present at all we no longer have to overwrite the ops during
> runtime but instead can always set them and return -ENOSYS if no
> sensor is registered.
> 
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> ---
>  drivers/thermal/of-thermal.c | 18 +++++++++++-------
>  1 file changed, 11 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
> index b39e22f..df14fdd 100644
> --- a/drivers/thermal/of-thermal.c
> +++ b/drivers/thermal/of-thermal.c
> @@ -91,7 +91,7 @@ static int of_thermal_get_temp(struct thermal_zone_device *tz,
>  {
>  	struct __thermal_zone *data = tz->devdata;
>  
> -	if (!data->ops->get_temp)
> +	if (!data->ops)
>  		return -EINVAL;
>  
>  	return data->ops->get_temp(data->sensor_data, temp);
> @@ -178,7 +178,7 @@ static int of_thermal_set_emul_temp(struct thermal_zone_device *tz,
>  	struct __thermal_zone *data = tz->devdata;
>  
>  	if (!data->ops || !data->ops->set_emul_temp)
> -		return -EINVAL;
> +		return -ENOSYS;
>  
>  	return data->ops->set_emul_temp(data->sensor_data, temp);
>  }
> @@ -189,8 +189,8 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
>  	struct __thermal_zone *data = tz->devdata;
>  	int r;
>  
> -	if (!data->ops->get_trend)
> -		return -EINVAL;
> +	if (!data->ops || !data->ops->get_trend)
> +		return -ENOSYS;
>  
>  	r = data->ops->get_trend(data->sensor_data, trip, trend);
>  	if (r)
> @@ -366,6 +366,10 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
>  }
>  
>  static struct thermal_zone_device_ops of_thermal_ops = {
> +	.get_temp = of_thermal_get_temp,
> +	.get_trend = of_thermal_get_trend,
> +	.set_emul_temp = of_thermal_set_emul_temp,
> +
>  	.get_mode = of_thermal_get_mode,
>  	.set_mode = of_thermal_set_mode,
>  
> @@ -399,13 +403,13 @@ thermal_zone_of_add_sensor(struct device_node *zone,
>  	if (!ops)
>  		return ERR_PTR(-EINVAL);
>  
> +	if (!ops->get_temp)
> +		return ERR_PTR(-EINVAL);
> +
>  	mutex_lock(&tzd->lock);
>  	tz->ops = ops;
>  	tz->sensor_data = data;
>  
> -	tzd->ops->get_temp = of_thermal_get_temp;
> -	tzd->ops->get_trend = of_thermal_get_trend;
> -	tzd->ops->set_emul_temp = of_thermal_set_emul_temp;

You may want to update the thermal_zone_of_sensor_unregister too.

>  	mutex_unlock(&tzd->lock);
>  
>  	return tzd;
> -- 
> 2.1.4
>
Sascha Hauer April 14, 2015, 10:54 a.m. UTC | #2
On Mon, Apr 06, 2015 at 08:25:23PM -0700, Eduardo Valentin wrote:
> On Thu, Mar 26, 2015 at 04:53:56PM +0100, Sascha Hauer wrote:
> > Now that the thermal core treats -ENOSYS like the callbacks were
> > not present at all we no longer have to overwrite the ops during
> > runtime but instead can always set them and return -ENOSYS if no
> > sensor is registered.
> > 
> > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> > ---
> >  drivers/thermal/of-thermal.c | 18 +++++++++++-------
> >  1 file changed, 11 insertions(+), 7 deletions(-)
> > 
> > diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
> > index b39e22f..df14fdd 100644
> > --- a/drivers/thermal/of-thermal.c
> > +++ b/drivers/thermal/of-thermal.c
> > @@ -91,7 +91,7 @@ static int of_thermal_get_temp(struct thermal_zone_device *tz,
> >  {
> >  	struct __thermal_zone *data = tz->devdata;
> >  
> > -	if (!data->ops->get_temp)
> > +	if (!data->ops)
> >  		return -EINVAL;
> >  
> >  	return data->ops->get_temp(data->sensor_data, temp);
> > @@ -178,7 +178,7 @@ static int of_thermal_set_emul_temp(struct thermal_zone_device *tz,
> >  	struct __thermal_zone *data = tz->devdata;
> >  
> >  	if (!data->ops || !data->ops->set_emul_temp)
> > -		return -EINVAL;
> > +		return -ENOSYS;
> >  
> >  	return data->ops->set_emul_temp(data->sensor_data, temp);
> >  }
> > @@ -189,8 +189,8 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
> >  	struct __thermal_zone *data = tz->devdata;
> >  	int r;
> >  
> > -	if (!data->ops->get_trend)
> > -		return -EINVAL;
> > +	if (!data->ops || !data->ops->get_trend)
> > +		return -ENOSYS;
> >  
> >  	r = data->ops->get_trend(data->sensor_data, trip, trend);
> >  	if (r)
> > @@ -366,6 +366,10 @@ static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
> >  }
> >  
> >  static struct thermal_zone_device_ops of_thermal_ops = {
> > +	.get_temp = of_thermal_get_temp,
> > +	.get_trend = of_thermal_get_trend,
> > +	.set_emul_temp = of_thermal_set_emul_temp,
> > +
> >  	.get_mode = of_thermal_get_mode,
> >  	.set_mode = of_thermal_set_mode,
> >  
> > @@ -399,13 +403,13 @@ thermal_zone_of_add_sensor(struct device_node *zone,
> >  	if (!ops)
> >  		return ERR_PTR(-EINVAL);
> >  
> > +	if (!ops->get_temp)
> > +		return ERR_PTR(-EINVAL);
> > +
> >  	mutex_lock(&tzd->lock);
> >  	tz->ops = ops;
> >  	tz->sensor_data = data;
> >  
> > -	tzd->ops->get_temp = of_thermal_get_temp;
> > -	tzd->ops->get_trend = of_thermal_get_trend;
> > -	tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
> 
> You may want to update the thermal_zone_of_sensor_unregister too.

Ups, indeed. That hunk accidently went into a later patch.

Sascha

Patch
diff mbox

diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index b39e22f..df14fdd 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -91,7 +91,7 @@  static int of_thermal_get_temp(struct thermal_zone_device *tz,
 {
 	struct __thermal_zone *data = tz->devdata;
 
-	if (!data->ops->get_temp)
+	if (!data->ops)
 		return -EINVAL;
 
 	return data->ops->get_temp(data->sensor_data, temp);
@@ -178,7 +178,7 @@  static int of_thermal_set_emul_temp(struct thermal_zone_device *tz,
 	struct __thermal_zone *data = tz->devdata;
 
 	if (!data->ops || !data->ops->set_emul_temp)
-		return -EINVAL;
+		return -ENOSYS;
 
 	return data->ops->set_emul_temp(data->sensor_data, temp);
 }
@@ -189,8 +189,8 @@  static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
 	struct __thermal_zone *data = tz->devdata;
 	int r;
 
-	if (!data->ops->get_trend)
-		return -EINVAL;
+	if (!data->ops || !data->ops->get_trend)
+		return -ENOSYS;
 
 	r = data->ops->get_trend(data->sensor_data, trip, trend);
 	if (r)
@@ -366,6 +366,10 @@  static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
 }
 
 static struct thermal_zone_device_ops of_thermal_ops = {
+	.get_temp = of_thermal_get_temp,
+	.get_trend = of_thermal_get_trend,
+	.set_emul_temp = of_thermal_set_emul_temp,
+
 	.get_mode = of_thermal_get_mode,
 	.set_mode = of_thermal_set_mode,
 
@@ -399,13 +403,13 @@  thermal_zone_of_add_sensor(struct device_node *zone,
 	if (!ops)
 		return ERR_PTR(-EINVAL);
 
+	if (!ops->get_temp)
+		return ERR_PTR(-EINVAL);
+
 	mutex_lock(&tzd->lock);
 	tz->ops = ops;
 	tz->sensor_data = data;
 
-	tzd->ops->get_temp = of_thermal_get_temp;
-	tzd->ops->get_trend = of_thermal_get_trend;
-	tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
 	mutex_unlock(&tzd->lock);
 
 	return tzd;