@@ -12,11 +12,15 @@ Required properties:
- Refer to Documentation/devicetree/bindings/nvmem/nvmem.txt to know how to specify
nvmem cells
-
+
+Optional properties:
+- interrupts: Interrupt which gets triggered when threshold is hit
+
Example:
tsens: thermal-sensor@900000 {
- compatible = "qcom,msm8916-tsens";
- reg = <0x4a8000 0x2000>;
- nvmem-cells = <&tsens_caldata>, <&tsens_calsel>;
- nvmem-cell-names = "caldata", "calsel";
+ compatible = "qcom,msm8916-tsens";
+ reg = <0x4a8000 0x2000>;
+ nvmem-cells = <&tsens_caldata>, <&tsens_calsel>;
+ nvmem-cell-names = "caldata", "calsel";
+ interrupts = <0 178 0>;
- #thermal-sensor-cells = <1>;
- };
+ #thermal-sensor-cells = <1>;
+ };
--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -95,7 +95,7 @@ static int of_thermal_get_temp(struct th
{
- struct __thermal_zone *data = tz->devdata;
-
+ struct __thermal_zone *data = tz->devdata;
+
- if (!data->ops->get_temp)
+ if (!data->ops->get_temp || (data->mode == THERMAL_DEVICE_DISABLED))
- return -EINVAL;
-
- return data->ops->get_temp(data->sensor_data, temp);
+ return -EINVAL;
+
+ return data->ops->get_temp(data->sensor_data, temp);
@@ -106,7 +106,8 @@ static int of_thermal_set_trips(struct t
{
- struct __thermal_zone *data = tz->devdata;
-
+ struct __thermal_zone *data = tz->devdata;
+
- if (!data->ops || !data->ops->set_trips)
+ if (!data->ops || !data->ops->set_trips
+ || (data->mode == THERMAL_DEVICE_DISABLED))
- return -EINVAL;
-
- return data->ops->set_trips(data->sensor_data, low, high);
+ return -EINVAL;
+
+ return data->ops->set_trips(data->sensor_data, low, high);
@@ -192,6 +193,9 @@ static int of_thermal_set_emul_temp(stru
{
- struct __thermal_zone *data = tz->devdata;
-
+ struct __thermal_zone *data = tz->devdata;
+
+ if (data->mode == THERMAL_DEVICE_DISABLED)
+ return -EINVAL;
+
- return data->ops->set_emul_temp(data->sensor_data, temp);
+ return data->ops->set_emul_temp(data->sensor_data, temp);
}
-
+
@@ -200,7 +204,7 @@ static int of_thermal_get_trend(struct t
{
- struct __thermal_zone *data = tz->devdata;
-
+ struct __thermal_zone *data = tz->devdata;
+
- if (!data->ops->get_trend)
+ if (!data->ops->get_trend || (data->mode == THERMAL_DEVICE_DISABLED))
- return -EINVAL;
-
- return data->ops->get_trend(data->sensor_data, trip, trend);
+ return -EINVAL;
+
+ return data->ops->get_trend(data->sensor_data, trip, trend);
@@ -286,7 +290,9 @@ static int of_thermal_set_mode(struct th
- mutex_unlock(&tz->lock);
-
- data->mode = mode;
+ mutex_unlock(&tz->lock);
+
+ data->mode = mode;
- thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
+
+ if (mode == THERMAL_DEVICE_ENABLED)
+ thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
-
- return 0;
+
+ return 0;
}
@@ -296,7 +302,8 @@ static int of_thermal_get_trip_type(stru
{
- struct __thermal_zone *data = tz->devdata;
-
+ struct __thermal_zone *data = tz->devdata;
+
- if (trip >= data->ntrips || trip < 0)
+ if (trip >= data->ntrips || trip < 0
+ || (data->mode == THERMAL_DEVICE_DISABLED))
- return -EDOM;
-
- *type = data->trips[trip].type;
+ return -EDOM;
+
+ *type = data->trips[trip].type;
@@ -304,12 +311,39 @@ static int of_thermal_get_trip_type(stru
- return 0;
+ return 0;
}
-
+
+static int of_thermal_activate_trip_type(struct thermal_zone_device *tz,
+ int trip, enum thermal_trip_activation_mode mode)
+{
+}
+
static int of_thermal_get_trip_temp(struct thermal_zone_device *tz, int trip,
- int *temp)
+ int *temp)
{
- struct __thermal_zone *data = tz->devdata;
-
+ struct __thermal_zone *data = tz->devdata;
+
- if (trip >= data->ntrips || trip < 0)
+ if (trip >= data->ntrips || trip < 0
+ || (data->mode == THERMAL_DEVICE_DISABLED))
- return -EDOM;
-
- *temp = data->trips[trip].temperature;
+ return -EDOM;
+
+ *temp = data->trips[trip].temperature;
@@ -322,7 +356,8 @@ static int of_thermal_set_trip_temp(stru
{
- struct __thermal_zone *data = tz->devdata;
-
+ struct __thermal_zone *data = tz->devdata;
+
- if (trip >= data->ntrips || trip < 0)
+ if (trip >= data->ntrips || trip < 0
+ || (data->mode == THERMAL_DEVICE_DISABLED))
- return -EDOM;
-
- if (data->ops->set_trip_temp) {
+ return -EDOM;
+
+ if (data->ops->set_trip_temp) {
@@ -344,7 +379,8 @@ static int of_thermal_get_trip_hyst(stru
{
- struct __thermal_zone *data = tz->devdata;
-
+ struct __thermal_zone *data = tz->devdata;
+
- if (trip >= data->ntrips || trip < 0)
+ if (trip >= data->ntrips || trip < 0
+ || (data->mode == THERMAL_DEVICE_DISABLED))
- return -EDOM;
-
- *hyst = data->trips[trip].hysteresis;
+ return -EDOM;
+
+ *hyst = data->trips[trip].hysteresis;
@@ -357,7 +393,8 @@ static int of_thermal_set_trip_hyst(stru
{
- struct __thermal_zone *data = tz->devdata;
-
+ struct __thermal_zone *data = tz->devdata;
+
- if (trip >= data->ntrips || trip < 0)
+ if (trip >= data->ntrips || trip < 0
+ || (data->mode == THERMAL_DEVICE_DISABLED))
- return -EDOM;
-
- /* thermal framework should take care of data->mask & (1 << trip) */
+ return -EDOM;
+
+ /* thermal framework should take care of data->mask & (1 << trip) */
@@ -432,6 +469,9 @@ thermal_zone_of_add_sensor(struct device
- if (ops->set_emul_temp)
- tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
-
+ if (ops->set_emul_temp)
+ tzd->ops->set_emul_temp = of_thermal_set_emul_temp;
+
+ if (ops->set_trip_activate)
+ tzd->ops->set_trip_activate = of_thermal_activate_trip_type;
+
- mutex_unlock(&tzd->lock);
-
- return tzd;
+ mutex_unlock(&tzd->lock);
+
+ return tzd;
@@ -726,7 +766,10 @@ static const char * const trip_types[] =
- [THERMAL_TRIP_ACTIVE] = "active",
- [THERMAL_TRIP_PASSIVE] = "passive",
- [THERMAL_TRIP_HOT] = "hot",
+ [THERMAL_TRIP_ACTIVE] = "active",
+ [THERMAL_TRIP_PASSIVE] = "passive",
+ [THERMAL_TRIP_HOT] = "hot",
- [THERMAL_TRIP_CRITICAL] = "critical",
+ [THERMAL_TRIP_CRITICAL] = "critical_high",
+ [THERMAL_TRIP_CONFIGURABLE_HI] = "configurable_hi",
+ [THERMAL_TRIP_CONFIGURABLE_LOW] = "configurable_lo",
+ [THERMAL_TRIP_CRITICAL_LOW] = "critical_low",
};
-
+
/**
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -31,7 +31,7 @@ static int tsens_get_temp(void *data, in
-
+
static int tsens_get_trend(void *p, int trip, enum thermal_trend *trend)
{
- const struct tsens_sensor *s = p;
+ struct tsens_sensor *s = p;
- struct tsens_device *tmdev = s->tmdev;
-
- if (tmdev->ops->get_trend)
+ struct tsens_device *tmdev = s->tmdev;
+
+ if (tmdev->ops->get_trend)
@@ -40,9 +40,10 @@ static int tsens_get_trend(void *p, int
- return -ENOTSUPP;
+ return -ENOTSUPP;
}
-
+
-static int __maybe_unused tsens_suspend(struct device *dev)
+static int __maybe_unused tsens_suspend(void *data)
{
- struct tsens_device *tmdev = dev_get_drvdata(dev);
+ struct tsens_sensor *s = data;
+ struct tsens_device *tmdev = s->tmdev;
-
- if (tmdev->ops && tmdev->ops->suspend)
- return tmdev->ops->suspend(tmdev);
+
+ if (tmdev->ops && tmdev->ops->suspend)
+ return tmdev->ops->suspend(tmdev);
@@ -50,9 +51,10 @@ static int __maybe_unused tsens_suspend
- return 0;
+ return 0;
}
-
+
-static int __maybe_unused tsens_resume(struct device *dev)
+static int __maybe_unused tsens_resume(void *data)
{
- struct tsens_device *tmdev = dev_get_drvdata(dev);
+ struct tsens_sensor *s = data;
+ struct tsens_device *tmdev = s->tmdev;
-
- if (tmdev->ops && tmdev->ops->resume)
- return tmdev->ops->resume(tmdev);
+
+ if (tmdev->ops && tmdev->ops->resume)
+ return tmdev->ops->resume(tmdev);
@@ -60,6 +62,30 @@ static int __maybe_unused tsens_resume(s
- return 0;
+ return 0;
}
-
+
+static int __maybe_unused tsens_set_trip_temp(void *data, int trip, int temp)
+{
+ struct tsens_sensor *s = data;
+
+
static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
-
+
static const struct of_device_id tsens_table[] = {
@@ -83,6 +109,8 @@ MODULE_DEVICE_TABLE(of, tsens_table);
static const struct thermal_zone_of_device_ops tsens_of_ops = {
- .get_temp = tsens_get_temp,
- .get_trend = tsens_get_trend,
+ .get_temp = tsens_get_temp,
+ .get_trend = tsens_get_trend,
+ .set_trip_temp = tsens_set_trip_temp,
+ .set_trip_activate = tsens_activate_trip_type,
};
-
+
static int tsens_register(struct tsens_device *tmdev)
@@ -131,7 +159,7 @@ static int tsens_probe(struct platform_d
- if (id)
- data = id->data;
- else
+ if (id)
+ data = id->data;
+ else
- data = &data_8960;
+ return -EINVAL;
-
- if (data->num_sensors <= 0) {
- dev_err(dev, "invalid number of sensors\n");
+
+ if (data->num_sensors <= 0) {
+ dev_err(dev, "invalid number of sensors\n");
@@ -146,6 +174,9 @@ static int tsens_probe(struct platform_d
- tmdev->dev = dev;
- tmdev->num_sensors = data->num_sensors;
- tmdev->ops = data->ops;
+ tmdev->dev = dev;
+ tmdev->num_sensors = data->num_sensors;
+ tmdev->ops = data->ops;
+
+ tmdev->tsens_irq = platform_get_irq(pdev, 0);
+
- for (i = 0; i < tmdev->num_sensors; i++) {
- if (data->hw_ids)
- tmdev->sensor[i].hw_id = data->hw_ids[i];
+ for (i = 0; i < tmdev->num_sensors; i++) {
+ if (data->hw_ids)
+ tmdev->sensor[i].hw_id = data->hw_ids[i];
--- a/drivers/thermal/qcom/tsens.h
+++ b/drivers/thermal/qcom/tsens.h
@@ -24,9 +24,12 @@ struct tsens_device;
struct tsens_sensor {
- struct tsens_device *tmdev;
- struct thermal_zone_device *tzd;
+ struct tsens_device *tmdev;
+ struct thermal_zone_device *tzd;
+ struct work_struct notify_work;
- int offset;
- int id;
- int hw_id;
+ int offset;
+ int id;
+ int hw_id;
+ int calib_data;
+ int calib_data_backup;
- int slope;
- u32 status;
+ int slope;
+ u32 status;
};
@@ -41,6 +44,9 @@ struct tsens_sensor {
* @suspend: Function to suspend the tsens device
+ * @set_trip_activate: Function to activate trip points
*/
struct tsens_ops {
- /* mandatory callbacks */
+ /* mandatory callbacks */
@@ -53,6 +59,9 @@ struct tsens_ops {
- int (*suspend)(struct tsens_device *);
- int (*resume)(struct tsens_device *);
- int (*get_trend)(struct tsens_device *, int, enum thermal_trend *);
+ int (*suspend)(struct tsens_device *);
+ int (*resume)(struct tsens_device *);
+ int (*get_trend)(struct tsens_device *, int, enum thermal_trend *);
+ int (*set_trip_temp)(void *, int, int);
+ int (*set_trip_activate)(void *, int,
+ enum thermal_trip_activation_mode);
};
-
+
/**
@@ -76,11 +85,13 @@ struct tsens_context {
struct tsens_device {
- struct device *dev;
- u32 num_sensors;
+ struct device *dev;
+ u32 num_sensors;
+ u32 tsens_irq;
- struct regmap *map;
- struct regmap_field *status_field;
- struct tsens_context ctx;
- bool trdy;
- const struct tsens_ops *ops;
+ struct regmap *map;
+ struct regmap_field *status_field;
+ struct tsens_context ctx;
+ bool trdy;
+ const struct tsens_ops *ops;
+ struct work_struct tsens_work;
- struct tsens_sensor sensor[0];
+ struct tsens_sensor sensor[0];
};
-
+
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
-@@ -115,12 +115,48 @@
- return sprintf(buf, "passive\n");
- case THERMAL_TRIP_ACTIVE:
- return sprintf(buf, "active\n");
+@@ -115,12 +115,48 @@ trip_point_type_show(struct device *dev,
+ return sprintf(buf, "passive\n");
+ case THERMAL_TRIP_ACTIVE:
+ return sprintf(buf, "active\n");
+ case THERMAL_TRIP_CONFIGURABLE_HI:
+ return sprintf(buf, "configurable_hi\n");
+ case THERMAL_TRIP_CONFIGURABLE_LOW:
+ return sprintf(buf, "configurable_low\n");
+ case THERMAL_TRIP_CRITICAL_LOW:
+ return sprintf(buf, "critical_low\n");
- default:
- return sprintf(buf, "unknown\n");
- }
+ default:
+ return sprintf(buf, "unknown\n");
+ }
}
-
+
static ssize_t
+trip_point_type_activate(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+
+static ssize_t
trip_point_temp_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
+ const char *buf, size_t count)
{
-@@ -562,6 +598,12 @@
- tz->trip_type_attrs[indx].attr.show = trip_point_type_show;
- attrs[indx] = &tz->trip_type_attrs[indx].attr.attr;
-
+@@ -562,6 +598,12 @@ static int create_trip_attrs(struct ther
+ tz->trip_type_attrs[indx].attr.show = trip_point_type_show;
+ attrs[indx] = &tz->trip_type_attrs[indx].attr.attr;
+
+ if (IS_ENABLED(CONFIG_THERMAL_WRITABLE_TRIPS)) {
+ tz->trip_type_attrs[indx].attr.store
+ = trip_point_type_activate;
+ tz->trip_type_attrs[indx].attr.attr.mode |= S_IWUSR;
+ }
+
- /* create trip temp attribute */
- snprintf(tz->trip_temp_attrs[indx].name, THERMAL_NAME_LENGTH,
- "trip_point_%d_temp", indx);
+ /* create trip temp attribute */
+ snprintf(tz->trip_temp_attrs[indx].name, THERMAL_NAME_LENGTH,
+ "trip_point_%d_temp", indx);
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -78,11 +78,19 @@ enum thermal_device_mode {
- THERMAL_DEVICE_ENABLED,
+ THERMAL_DEVICE_ENABLED,
};
-
+
+enum thermal_trip_activation_mode {
+ THERMAL_TRIP_ACTIVATION_DISABLED = 0,
+ THERMAL_TRIP_ACTIVATION_ENABLED,
+};
+
enum thermal_trip_type {
- THERMAL_TRIP_ACTIVE = 0,
- THERMAL_TRIP_PASSIVE,
- THERMAL_TRIP_HOT,
- THERMAL_TRIP_CRITICAL,
+ THERMAL_TRIP_ACTIVE = 0,
+ THERMAL_TRIP_PASSIVE,
+ THERMAL_TRIP_HOT,
+ THERMAL_TRIP_CRITICAL,
+ THERMAL_TRIP_CONFIGURABLE_HI,
+ THERMAL_TRIP_CONFIGURABLE_LOW,
+ THERMAL_TRIP_CRITICAL_LOW,
};
-
+
enum thermal_trend {
@@ -120,6 +128,8 @@ struct thermal_zone_device_ops {
- enum thermal_trip_type *);
- int (*get_trip_temp) (struct thermal_zone_device *, int, int *);
- int (*set_trip_temp) (struct thermal_zone_device *, int, int);
+ enum thermal_trip_type *);
+ int (*get_trip_temp) (struct thermal_zone_device *, int, int *);
+ int (*set_trip_temp) (struct thermal_zone_device *, int, int);
+ int (*set_trip_activate) (struct thermal_zone_device *, int,
+ enum thermal_trip_activation_mode);
- int (*get_trip_hyst) (struct thermal_zone_device *, int, int *);
- int (*set_trip_hyst) (struct thermal_zone_device *, int, int);
- int (*get_crit_temp) (struct thermal_zone_device *, int *);
+ int (*get_trip_hyst) (struct thermal_zone_device *, int, int *);
+ int (*set_trip_hyst) (struct thermal_zone_device *, int, int);
+ int (*get_crit_temp) (struct thermal_zone_device *, int *);
@@ -363,6 +373,8 @@ struct thermal_genl_event {
* temperature.
* @set_trip_temp: a pointer to a function that sets the trip temperature on
+ * temperature interrupts
*/
struct thermal_zone_of_device_ops {
- int (*get_temp)(void *, int *);
+ int (*get_temp)(void *, int *);
@@ -370,6 +382,8 @@ struct thermal_zone_of_device_ops {
- int (*set_trips)(void *, int, int);
- int (*set_emul_temp)(void *, int);
- int (*set_trip_temp)(void *, int, int);
+ int (*set_trips)(void *, int, int);
+ int (*set_emul_temp)(void *, int);
+ int (*set_trip_temp)(void *, int, int);
+ int (*set_trip_activate)(void *, int,
+ enum thermal_trip_activation_mode);
};
-
+
/**
projects / openwrt / openwrt.git / blobdiff