[PATCH v6 07/12] thermal: of-thermal: allow setting trip_temp on hardware

[PATCH v6 07/12] thermal: of-thermal: allow setting trip_temp on hardware

[Wei Ni]

In current of-thermal, the .set_trip_temp only support to
set trip_temp for SW. But some sensors support to set
trip_temp on hardware, so that can trigger interrupt,
shutdown or any other events.
This patch adds .set_trip_temp() callback in
thermal_zone_of_device_ops{}, so that the sensor device can
use it to set trip_temp on hardware.

Signed-off-by: Wei Ni <wni@nvidia.com>
---
 drivers/thermal/of-thermal.c | 8 ++++++++
 include/linux/thermal.h      | 1 +
 2 files changed, 9 insertions(+)

diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
index be4eedcb839a..fbfc5a52dc27 100644
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -331,6 +331,14 @@ static int of_thermal_set_trip_temp(struct thermal_zone_device *tz, int trip,
 	if (trip >= data->ntrips || trip < 0)
 		return -EDOM;
 
+	if (data->ops->set_trip_temp) {
+		int ret;
+
+		ret = data->ops->set_trip_temp(data->sensor_data, trip, temp);
+		if (ret)
+			return ret;
+	}
+
 	/* thermal framework should take care of data->mask & (1 << trip) */
 	data->trips[trip].temperature = temp;
 
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index e13a1ace50e9..e69296dc583b 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -338,6 +338,7 @@ struct thermal_zone_of_device_ops {
 	int (*get_temp)(void *, int *);
 	int (*get_trend)(void *, long *);
 	int (*set_emul_temp)(void *, int);
+	int (*set_trip_temp)(void *, int, int);
 };
 
 /**
-- 
1.9.1

Re: [PATCH v6 07/12] thermal: of-thermal: allow setting trip_temp on hardware

[Wei Ni]

Add linux-pm@vger.kernel.org in the CC list.

On 2016年02月22日 16:09, Wei Ni wrote:
> In current of-thermal, the .set_trip_temp only support to
> set trip_temp for SW. But some sensors support to set
> trip_temp on hardware, so that can trigger interrupt,
> shutdown or any other events.
> This patch adds .set_trip_temp() callback in
> thermal_zone_of_device_ops{}, so that the sensor device can
> use it to set trip_temp on hardware.
> 
> Signed-off-by: Wei Ni <wni@nvidia.com>
> ---
>  drivers/thermal/of-thermal.c | 8 ++++++++
>  include/linux/thermal.h      | 1 +
>  2 files changed, 9 insertions(+)
> 
> diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
> index be4eedcb839a..fbfc5a52dc27 100644
> --- a/drivers/thermal/of-thermal.c
> +++ b/drivers/thermal/of-thermal.c
> @@ -331,6 +331,14 @@ static int of_thermal_set_trip_temp(struct thermal_zone_device *tz, int trip,
>  	if (trip >= data->ntrips || trip < 0)
>  		return -EDOM;
>  
> +	if (data->ops->set_trip_temp) {
> +		int ret;
> +
> +		ret = data->ops->set_trip_temp(data->sensor_data, trip, temp);
> +		if (ret)
> +			return ret;
> +	}
> +
>  	/* thermal framework should take care of data->mask & (1 << trip) */
>  	data->trips[trip].temperature = temp;
>  
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index e13a1ace50e9..e69296dc583b 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -338,6 +338,7 @@ struct thermal_zone_of_device_ops {
>  	int (*get_temp)(void *, int *);
>  	int (*get_trend)(void *, long *);
>  	int (*set_emul_temp)(void *, int);
> +	int (*set_trip_temp)(void *, int, int);
>  };
>  
>  /**
>