From 7c3d5c20dc169e55064f7f38c1c56cfbc39ee5b2 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:34 +0200
Subject: [PATCH 01/37] thermal/core: Add a generic thermal_zone_get_trip()
 function

The thermal_zone_device_ops structure defines a set of ops family,
get_trip_temp(), get_trip_hyst(), get_trip_type(). Each of them is
returning a property of a trip point.

The result is the code is calling the ops everywhere to get a trip
point which is supposed to be defined in the backend driver. It is a
non-sense as a thermal trip can be generic and used by the backend
driver to declare its trip points.

Part of the thermal framework has been changed and all the OF thermal
drivers are using the same definition for the trip point and use a
thermal zone registration variant to pass those trip points which are
part of the thermal zone device structure.

Consequently, we can use a generic function to get the trip points
when they are stored in the thermal zone device structure.

This approach can be generalized to all the drivers and we can get rid
of the ops->get_trip_*. That will result to a much more simpler code
and make possible to rework how the thermal trip are handled in the
thermal core framework as discussed previously.

This change adds a function thermal_zone_get_trip() where we get the
thermal trip point structure which contains all the properties (type,
temp, hyst) instead of doing multiple calls to ops->get_trip_*.

That opens the door for trip point extension with more attributes. For
instance, replacing the trip points disabled bitmask with a 'disabled'
field in the structure.

Here we replace all the calls to ops->get_trip_* in the thermal core
code with a call to the thermal_zone_get_trip() function.

The thermal zone ops defines a callback to retrieve the critical
temperature. As the trip handling is being reworked, all the trip
points will be the same whatever the driver and consequently finding
the critical trip temperature will be just a loop to search for a
critical trip point type.

Provide such a generic function, so we encapsulate the ops
get_crit_temp() which can be removed when all the backend drivers are
using the generic trip points handling.

While at it, add the thermal_zone_get_num_trips() to encapsulate the
code more and reduce the grip with the thermal framework internals.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Link: https://lore.kernel.org/r/20221003092602.1323944-2-daniel.lezcano@linaro.org
---
 drivers/thermal/thermal_core.c    | 114 ++++++++++++++++++++++++------
 drivers/thermal/thermal_core.h    |   2 +
 drivers/thermal/thermal_helpers.c |  28 ++++----
 drivers/thermal/thermal_netlink.c |  19 +++--
 drivers/thermal/thermal_sysfs.c   |  64 +++++++----------
 include/linux/thermal.h           |   7 ++
 6 files changed, 147 insertions(+), 87 deletions(-)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index f17ab2316dbd..b043c315c005 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -344,35 +344,31 @@ static void handle_critical_trips(struct thermal_zone_device *tz,
 		tz->ops->critical(tz);
 }
 
-static void handle_thermal_trip(struct thermal_zone_device *tz, int trip)
+static void handle_thermal_trip(struct thermal_zone_device *tz, int trip_id)
 {
-	enum thermal_trip_type type;
-	int trip_temp, hyst = 0;
+	struct thermal_trip trip;
 
 	/* Ignore disabled trip points */
-	if (test_bit(trip, &tz->trips_disabled))
+	if (test_bit(trip_id, &tz->trips_disabled))
 		return;
 
-	tz->ops->get_trip_temp(tz, trip, &trip_temp);
-	tz->ops->get_trip_type(tz, trip, &type);
-	if (tz->ops->get_trip_hyst)
-		tz->ops->get_trip_hyst(tz, trip, &hyst);
+	__thermal_zone_get_trip(tz, trip_id, &trip);
 
 	if (tz->last_temperature != THERMAL_TEMP_INVALID) {
-		if (tz->last_temperature < trip_temp &&
-		    tz->temperature >= trip_temp)
-			thermal_notify_tz_trip_up(tz->id, trip,
+		if (tz->last_temperature < trip.temperature &&
+		    tz->temperature >= trip.temperature)
+			thermal_notify_tz_trip_up(tz->id, trip_id,
 						  tz->temperature);
-		if (tz->last_temperature >= trip_temp &&
-		    tz->temperature < (trip_temp - hyst))
-			thermal_notify_tz_trip_down(tz->id, trip,
+		if (tz->last_temperature >= trip.temperature &&
+		    tz->temperature < (trip.temperature - trip.hysteresis))
+			thermal_notify_tz_trip_down(tz->id, trip_id,
 						    tz->temperature);
 	}
 
-	if (type == THERMAL_TRIP_CRITICAL || type == THERMAL_TRIP_HOT)
-		handle_critical_trips(tz, trip, trip_temp, type);
+	if (trip.type == THERMAL_TRIP_CRITICAL || trip.type == THERMAL_TRIP_HOT)
+		handle_critical_trips(tz, trip_id, trip.temperature, trip.type);
 	else
-		handle_non_critical_trips(tz, trip);
+		handle_non_critical_trips(tz, trip_id);
 }
 
 static void update_temperature(struct thermal_zone_device *tz)
@@ -1159,6 +1155,79 @@ static void thermal_set_delay_jiffies(unsigned long *delay_jiffies, int delay_ms
 		*delay_jiffies = round_jiffies(*delay_jiffies);
 }
 
+int thermal_zone_get_num_trips(struct thermal_zone_device *tz)
+{
+	return tz->num_trips;
+}
+EXPORT_SYMBOL_GPL(thermal_zone_get_num_trips);
+
+int thermal_zone_get_crit_temp(struct thermal_zone_device *tz, int *temp)
+{
+	int i, ret = -EINVAL;
+
+	if (tz->ops->get_crit_temp)
+		return tz->ops->get_crit_temp(tz, temp);
+
+	if (!tz->trips)
+		return -EINVAL;
+
+	mutex_lock(&tz->lock);
+
+	for (i = 0; i < tz->num_trips; i++) {
+		if (tz->trips[i].type == THERMAL_TRIP_CRITICAL) {
+			*temp = tz->trips[i].temperature;
+			ret = 0;
+			break;
+		}
+	}
+
+	mutex_unlock(&tz->lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(thermal_zone_get_crit_temp);
+
+int __thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
+			    struct thermal_trip *trip)
+{
+	int ret;
+
+	if (!tz || trip_id < 0 || trip_id >= tz->num_trips || !trip)
+		return -EINVAL;
+
+	if (tz->trips) {
+		*trip = tz->trips[trip_id];
+		return 0;
+	}
+
+	if (tz->ops->get_trip_hyst) {
+		ret = tz->ops->get_trip_hyst(tz, trip_id, &trip->hysteresis);
+		if (ret)
+			return ret;
+	} else {
+		trip->hysteresis = 0;
+	}
+
+	ret = tz->ops->get_trip_temp(tz, trip_id, &trip->temperature);
+	if (ret)
+		return ret;
+
+	return tz->ops->get_trip_type(tz, trip_id, &trip->type);
+}
+
+int thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
+			  struct thermal_trip *trip)
+{
+	int ret;
+
+	mutex_lock(&tz->lock);
+	ret = __thermal_zone_get_trip(tz, trip_id, trip);
+	mutex_unlock(&tz->lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(thermal_zone_get_trip);
+
 /**
  * thermal_zone_device_register_with_trips() - register a new thermal zone device
  * @type:	the thermal zone device type
@@ -1191,8 +1260,6 @@ thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t
 					int polling_delay)
 {
 	struct thermal_zone_device *tz;
-	enum thermal_trip_type trip_type;
-	int trip_temp;
 	int id;
 	int result;
 	int count;
@@ -1232,7 +1299,7 @@ thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t
 		return ERR_PTR(-EINVAL);
 	}
 
-	if (num_trips > 0 && (!ops->get_trip_type || !ops->get_trip_temp))
+	if (num_trips > 0 && (!ops->get_trip_type || !ops->get_trip_temp) && !trips)
 		return ERR_PTR(-EINVAL);
 
 	tz = kzalloc(sizeof(*tz), GFP_KERNEL);
@@ -1283,9 +1350,10 @@ thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t
 		goto release_device;
 
 	for (count = 0; count < num_trips; count++) {
-		if (tz->ops->get_trip_type(tz, count, &trip_type) ||
-		    tz->ops->get_trip_temp(tz, count, &trip_temp) ||
-		    !trip_temp)
+		struct thermal_trip trip;
+
+		result = thermal_zone_get_trip(tz, count, &trip);
+		if (result)
 			set_bit(count, &tz->trips_disabled);
 	}
 
diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index b834cb273429..5f475b0a8c2f 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -114,6 +114,8 @@ void __thermal_zone_device_update(struct thermal_zone_device *tz,
 
 /* Helpers */
 void __thermal_zone_set_trips(struct thermal_zone_device *tz);
+int __thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
+			    struct thermal_trip *trip);
 int __thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp);
 
 /* sysfs I/F */
diff --git a/drivers/thermal/thermal_helpers.c b/drivers/thermal/thermal_helpers.c
index 56aa2e88f34f..8977d5ddc23c 100644
--- a/drivers/thermal/thermal_helpers.c
+++ b/drivers/thermal/thermal_helpers.c
@@ -83,7 +83,7 @@ int __thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp)
 	int ret = -EINVAL;
 	int count;
 	int crit_temp = INT_MAX;
-	enum thermal_trip_type type;
+	struct thermal_trip trip;
 
 	lockdep_assert_held(&tz->lock);
 
@@ -91,10 +91,9 @@ int __thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp)
 
 	if (IS_ENABLED(CONFIG_THERMAL_EMULATION) && tz->emul_temperature) {
 		for (count = 0; count < tz->num_trips; count++) {
-			ret = tz->ops->get_trip_type(tz, count, &type);
-			if (!ret && type == THERMAL_TRIP_CRITICAL) {
-				ret = tz->ops->get_trip_temp(tz, count,
-						&crit_temp);
+			ret = __thermal_zone_get_trip(tz, count, &trip);
+			if (!ret && trip.type == THERMAL_TRIP_CRITICAL) {
+				crit_temp = trip.temperature;
 				break;
 			}
 		}
@@ -164,29 +163,30 @@ EXPORT_SYMBOL_GPL(thermal_zone_get_temp);
  */
 void __thermal_zone_set_trips(struct thermal_zone_device *tz)
 {
-	int low = -INT_MAX;
-	int high = INT_MAX;
-	int trip_temp, hysteresis;
+	struct thermal_trip trip;
+	int low = -INT_MAX, high = INT_MAX;
 	int i, ret;
 
 	lockdep_assert_held(&tz->lock);
 
-	if (!tz->ops->set_trips || !tz->ops->get_trip_hyst)
+	if (!tz->ops->set_trips)
 		return;
 
 	for (i = 0; i < tz->num_trips; i++) {
 		int trip_low;
 
-		tz->ops->get_trip_temp(tz, i, &trip_temp);
-		tz->ops->get_trip_hyst(tz, i, &hysteresis);
+		ret = __thermal_zone_get_trip(tz, i , &trip);
+		if (ret)
+			return;
 
-		trip_low = trip_temp - hysteresis;
+		trip_low = trip.temperature - trip.hysteresis;
 
 		if (trip_low < tz->temperature && trip_low > low)
 			low = trip_low;
 
-		if (trip_temp > tz->temperature && trip_temp < high)
-			high = trip_temp;
+		if (trip.temperature > tz->temperature &&
+		    trip.temperature < high)
+			high = trip.temperature;
 	}
 
 	/* No need to change trip points */
diff --git a/drivers/thermal/thermal_netlink.c b/drivers/thermal/thermal_netlink.c
index e2d78a996b5f..75943b06dbe7 100644
--- a/drivers/thermal/thermal_netlink.c
+++ b/drivers/thermal/thermal_netlink.c
@@ -452,7 +452,8 @@ static int thermal_genl_cmd_tz_get_trip(struct param *p)
 	struct sk_buff *msg = p->msg;
 	struct thermal_zone_device *tz;
 	struct nlattr *start_trip;
-	int i, id;
+	struct thermal_trip trip;
+	int ret, i, id;
 
 	if (!p->attrs[THERMAL_GENL_ATTR_TZ_ID])
 		return -EINVAL;
@@ -471,18 +472,14 @@ static int thermal_genl_cmd_tz_get_trip(struct param *p)
 
 	for (i = 0; i < tz->num_trips; i++) {
 
-		enum thermal_trip_type type;
-		int temp, hyst = 0;
-
-		tz->ops->get_trip_type(tz, i, &type);
-		tz->ops->get_trip_temp(tz, i, &temp);
-		if (tz->ops->get_trip_hyst)
-			tz->ops->get_trip_hyst(tz, i, &hyst);
+		ret = __thermal_zone_get_trip(tz, i, &trip);
+		if (ret)
+			goto out_cancel_nest;
 
 		if (nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_ID, i) ||
-		    nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TYPE, type) ||
-		    nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TEMP, temp) ||
-		    nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_HYST, hyst))
+		    nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TYPE, trip.type) ||
+		    nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_TEMP, trip.temperature) ||
+		    nla_put_u32(msg, THERMAL_GENL_ATTR_TZ_TRIP_HYST, trip.hysteresis))
 			goto out_cancel_nest;
 	}
 
diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index d97f0bc0a26b..137bbf6adbd6 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -83,27 +83,25 @@ trip_point_type_show(struct device *dev, struct device_attribute *attr,
 		     char *buf)
 {
 	struct thermal_zone_device *tz = to_thermal_zone(dev);
-	enum thermal_trip_type type;
-	int trip, result;
+	struct thermal_trip trip;
+	int trip_id, result;
 
-	if (!tz->ops->get_trip_type)
-		return -EPERM;
-
-	if (sscanf(attr->attr.name, "trip_point_%d_type", &trip) != 1)
+	if (sscanf(attr->attr.name, "trip_point_%d_type", &trip_id) != 1)
 		return -EINVAL;
 
 	mutex_lock(&tz->lock);
 
 	if (device_is_registered(dev))
-		result = tz->ops->get_trip_type(tz, trip, &type);
+		result = __thermal_zone_get_trip(tz, trip_id, &trip);
 	else
 		result = -ENODEV;
 
 	mutex_unlock(&tz->lock);
+
 	if (result)
 		return result;
 
-	switch (type) {
+	switch (trip.type) {
 	case THERMAL_TRIP_CRITICAL:
 		return sprintf(buf, "critical\n");
 	case THERMAL_TRIP_HOT:
@@ -122,17 +120,16 @@ trip_point_temp_store(struct device *dev, struct device_attribute *attr,
 		      const char *buf, size_t count)
 {
 	struct thermal_zone_device *tz = to_thermal_zone(dev);
-	int trip, ret;
-	int temperature, hyst = 0;
-	enum thermal_trip_type type;
+	struct thermal_trip trip;
+	int trip_id, ret;
 
 	if (!tz->ops->set_trip_temp && !tz->trips)
 		return -EPERM;
 
-	if (sscanf(attr->attr.name, "trip_point_%d_temp", &trip) != 1)
+	if (sscanf(attr->attr.name, "trip_point_%d_temp", &trip_id) != 1)
 		return -EINVAL;
 
-	if (kstrtoint(buf, 10, &temperature))
+	if (kstrtoint(buf, 10, &trip.temperature))
 		return -EINVAL;
 
 	mutex_lock(&tz->lock);
@@ -143,25 +140,20 @@ trip_point_temp_store(struct device *dev, struct device_attribute *attr,
 	}
 
 	if (tz->ops->set_trip_temp) {
-		ret = tz->ops->set_trip_temp(tz, trip, temperature);
+		ret = tz->ops->set_trip_temp(tz, trip_id, trip.temperature);
 		if (ret)
 			goto unlock;
 	}
 
 	if (tz->trips)
-		tz->trips[trip].temperature = temperature;
+		tz->trips[trip_id].temperature = trip.temperature;
 
-	if (tz->ops->get_trip_hyst) {
-		ret = tz->ops->get_trip_hyst(tz, trip, &hyst);
-		if (ret)
-			goto unlock;
-	}
-
-	ret = tz->ops->get_trip_type(tz, trip, &type);
+	ret = __thermal_zone_get_trip(tz, trip_id, &trip);
 	if (ret)
 		goto unlock;
 
-	thermal_notify_tz_trip_change(tz->id, trip, type, temperature, hyst);
+	thermal_notify_tz_trip_change(tz->id, trip_id, trip.type,
+				      trip.temperature, trip.hysteresis);
 
 	__thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
 
@@ -179,19 +171,16 @@ trip_point_temp_show(struct device *dev, struct device_attribute *attr,
 		     char *buf)
 {
 	struct thermal_zone_device *tz = to_thermal_zone(dev);
-	int trip, ret;
-	int temperature;
+	struct thermal_trip trip;
+	int trip_id, ret;
 
-	if (!tz->ops->get_trip_temp)
-		return -EPERM;
-
-	if (sscanf(attr->attr.name, "trip_point_%d_temp", &trip) != 1)
+	if (sscanf(attr->attr.name, "trip_point_%d_temp", &trip_id) != 1)
 		return -EINVAL;
 
 	mutex_lock(&tz->lock);
 
 	if (device_is_registered(dev))
-		ret = tz->ops->get_trip_temp(tz, trip, &temperature);
+		ret = __thermal_zone_get_trip(tz, trip_id, &trip);
 	else
 		ret = -ENODEV;
 
@@ -200,7 +189,7 @@ trip_point_temp_show(struct device *dev, struct device_attribute *attr,
 	if (ret)
 		return ret;
 
-	return sprintf(buf, "%d\n", temperature);
+	return sprintf(buf, "%d\n", trip.temperature);
 }
 
 static ssize_t
@@ -248,25 +237,22 @@ trip_point_hyst_show(struct device *dev, struct device_attribute *attr,
 		     char *buf)
 {
 	struct thermal_zone_device *tz = to_thermal_zone(dev);
-	int trip, ret;
-	int temperature;
+	struct thermal_trip trip;
+	int trip_id, ret;
 
-	if (!tz->ops->get_trip_hyst)
-		return -EPERM;
-
-	if (sscanf(attr->attr.name, "trip_point_%d_hyst", &trip) != 1)
+	if (sscanf(attr->attr.name, "trip_point_%d_hyst", &trip_id) != 1)
 		return -EINVAL;
 
 	mutex_lock(&tz->lock);
 
 	if (device_is_registered(dev))
-		ret = tz->ops->get_trip_hyst(tz, trip, &temperature);
+		ret = __thermal_zone_get_trip(tz, trip_id, &trip);
 	else
 		ret = -ENODEV;
 
 	mutex_unlock(&tz->lock);
 
-	return ret ? ret : sprintf(buf, "%d\n", temperature);
+	return ret ? ret : sprintf(buf, "%d\n", trip.hysteresis);
 }
 
 static ssize_t
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 5e093602e8fc..2198b3631f61 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -334,6 +334,13 @@ static inline void devm_thermal_of_zone_unregister(struct device *dev,
 }
 #endif
 
+int thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
+			  struct thermal_trip *trip);
+
+int thermal_zone_get_num_trips(struct thermal_zone_device *tz);
+
+int thermal_zone_get_crit_temp(struct thermal_zone_device *tz, int *temp);
+
 #ifdef CONFIG_THERMAL
 struct thermal_zone_device *thermal_zone_device_register(const char *, int, int,
 		void *, struct thermal_zone_device_ops *,

From 0614755dbfc0ec3af59a2e09785acb009706259d Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:35 +0200
Subject: [PATCH 02/37] thermal/sysfs: Always expose hysteresis attributes

Instead of avoiding to expose the hysteresis attributes of a thermal
zone when its get_trip_hyst() operation is not defined, which is
confusing, expose them always and use the default
thermal_zone_get_trip() function returning 0 hysteresis when that
operation is not present.

The hysteresis of 0 is perfectly valid, so this change should not
introduce any backwards compatibility issues.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20221003092602.1323944-3-daniel.lezcano@linaro.org
---
 drivers/thermal/thermal_sysfs.c | 25 +++++++++----------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index 137bbf6adbd6..d2d450076090 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -477,23 +477,20 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
 		return -ENOMEM;
 	}
 
-	if (tz->ops->get_trip_hyst) {
-		tz->trip_hyst_attrs = kcalloc(tz->num_trips,
-					      sizeof(*tz->trip_hyst_attrs),
-					      GFP_KERNEL);
-		if (!tz->trip_hyst_attrs) {
-			kfree(tz->trip_type_attrs);
-			kfree(tz->trip_temp_attrs);
-			return -ENOMEM;
-		}
+	tz->trip_hyst_attrs = kcalloc(tz->num_trips,
+				      sizeof(*tz->trip_hyst_attrs),
+				      GFP_KERNEL);
+	if (!tz->trip_hyst_attrs) {
+		kfree(tz->trip_type_attrs);
+		kfree(tz->trip_temp_attrs);
+		return -ENOMEM;
 	}
 
 	attrs = kcalloc(tz->num_trips * 3 + 1, sizeof(*attrs), GFP_KERNEL);
 	if (!attrs) {
 		kfree(tz->trip_type_attrs);
 		kfree(tz->trip_temp_attrs);
-		if (tz->ops->get_trip_hyst)
-			kfree(tz->trip_hyst_attrs);
+		kfree(tz->trip_hyst_attrs);
 		return -ENOMEM;
 	}
 
@@ -526,9 +523,6 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
 		}
 		attrs[indx + tz->num_trips] = &tz->trip_temp_attrs[indx].attr.attr;
 
-		/* create Optional trip hyst attribute */
-		if (!tz->ops->get_trip_hyst)
-			continue;
 		snprintf(tz->trip_hyst_attrs[indx].name, THERMAL_NAME_LENGTH,
 			 "trip_point_%d_hyst", indx);
 
@@ -565,8 +559,7 @@ static void destroy_trip_attrs(struct thermal_zone_device *tz)
 
 	kfree(tz->trip_type_attrs);
 	kfree(tz->trip_temp_attrs);
-	if (tz->ops->get_trip_hyst)
-		kfree(tz->trip_hyst_attrs);
+	kfree(tz->trip_hyst_attrs);
 	kfree(tz->trips_attribute_group.attrs);
 }
 

From 2e38a2a981b24a9e86e687d32708a3d02707c8f6 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:36 +0200
Subject: [PATCH 03/37] thermal/core: Add a generic thermal_zone_set_trip()
 function

The thermal zone ops defines a set_trip callback where we can invoke
the backend driver to set an interrupt for the next trip point
temperature being crossed the way up or down, or setting the low level
with the hysteresis.

The ops is only called from the thermal sysfs code where the userspace
has the ability to modify a trip point characteristic.

With the effort of encapsulating the thermal framework core code,
let's create a thermal_zone_set_trip() which is the writable side of
the thermal_zone_get_trip() and put there all the ops encapsulation.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20221003092602.1323944-4-daniel.lezcano@linaro.org
---
 drivers/thermal/thermal_core.c  | 39 +++++++++++++++++++++++
 drivers/thermal/thermal_sysfs.c | 56 +++++++++------------------------
 include/linux/thermal.h         |  3 ++
 3 files changed, 57 insertions(+), 41 deletions(-)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index b043c315c005..c24c9efcd175 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1228,6 +1228,45 @@ int thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
 }
 EXPORT_SYMBOL_GPL(thermal_zone_get_trip);
 
+int thermal_zone_set_trip(struct thermal_zone_device *tz, int trip_id,
+			  const struct thermal_trip *trip)
+{
+	struct thermal_trip t;
+	int ret;
+
+	if (!tz->ops->set_trip_temp && !tz->ops->set_trip_hyst && !tz->trips)
+		return -EINVAL;
+
+	ret = __thermal_zone_get_trip(tz, trip_id, &t);
+	if (ret)
+		return ret;
+
+	if (t.type != trip->type)
+		return -EINVAL;
+
+	if (t.temperature != trip->temperature && tz->ops->set_trip_temp) {
+		ret = tz->ops->set_trip_temp(tz, trip_id, trip->temperature);
+		if (ret)
+			return ret;
+	}
+
+	if (t.hysteresis != trip->hysteresis && tz->ops->set_trip_hyst) {
+		ret = tz->ops->set_trip_hyst(tz, trip_id, trip->hysteresis);
+		if (ret)
+			return ret;
+	}
+
+	if (tz->trips && (t.temperature != trip->temperature || t.hysteresis != trip->hysteresis))
+		tz->trips[trip_id] = *trip;
+
+	thermal_notify_tz_trip_change(tz->id, trip_id, trip->type,
+				      trip->temperature, trip->hysteresis);
+
+	__thermal_zone_device_update(tz, THERMAL_TRIP_CHANGED);
+	
+	return 0;
+}
+
 /**
  * thermal_zone_device_register_with_trips() - register a new thermal zone device
  * @type:	the thermal zone device type
diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index d2d450076090..cef860deaf91 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -123,15 +123,9 @@ trip_point_temp_store(struct device *dev, struct device_attribute *attr,
 	struct thermal_trip trip;
 	int trip_id, ret;
 
-	if (!tz->ops->set_trip_temp && !tz->trips)
-		return -EPERM;
-
 	if (sscanf(attr->attr.name, "trip_point_%d_temp", &trip_id) != 1)
 		return -EINVAL;
 
-	if (kstrtoint(buf, 10, &trip.temperature))
-		return -EINVAL;
-
 	mutex_lock(&tz->lock);
 
 	if (!device_is_registered(dev)) {
@@ -139,31 +133,19 @@ trip_point_temp_store(struct device *dev, struct device_attribute *attr,
 		goto unlock;
 	}
 
-	if (tz->ops->set_trip_temp) {
-		ret = tz->ops->set_trip_temp(tz, trip_id, trip.temperature);
-		if (ret)
-			goto unlock;
-	}
-
-	if (tz->trips)
-		tz->trips[trip_id].temperature = trip.temperature;
-
 	ret = __thermal_zone_get_trip(tz, trip_id, &trip);
 	if (ret)
 		goto unlock;
 
-	thermal_notify_tz_trip_change(tz->id, trip_id, trip.type,
-				      trip.temperature, trip.hysteresis);
-
-	__thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
+	ret = kstrtoint(buf, 10, &trip.temperature);
+	if (ret)
+		goto unlock;
 
+	ret = thermal_zone_set_trip(tz, trip_id, &trip);
 unlock:
 	mutex_unlock(&tz->lock);
-
-	if (ret)
-		return ret;
-
-	return count;
+	
+	return ret ? ret : count;
 }
 
 static ssize_t
@@ -197,16 +179,13 @@ trip_point_hyst_store(struct device *dev, struct device_attribute *attr,
 		      const char *buf, size_t count)
 {
 	struct thermal_zone_device *tz = to_thermal_zone(dev);
-	int trip, ret;
-	int temperature;
+	struct thermal_trip trip;
+	int trip_id, ret;
 
-	if (!tz->ops->set_trip_hyst)
-		return -EPERM;
-
-	if (sscanf(attr->attr.name, "trip_point_%d_hyst", &trip) != 1)
+	if (sscanf(attr->attr.name, "trip_point_%d_hyst", &trip_id) != 1)
 		return -EINVAL;
 
-	if (kstrtoint(buf, 10, &temperature))
+	if (kstrtoint(buf, 10, &trip.hysteresis))
 		return -EINVAL;
 
 	mutex_lock(&tz->lock);
@@ -216,16 +195,11 @@ trip_point_hyst_store(struct device *dev, struct device_attribute *attr,
 		goto unlock;
 	}
 
-	/*
-	 * We are not doing any check on the 'temperature' value
-	 * here. The driver implementing 'set_trip_hyst' has to
-	 * take care of this.
-	 */
-	ret = tz->ops->set_trip_hyst(tz, trip, temperature);
-
-	if (!ret)
-		__thermal_zone_set_trips(tz);
-
+	ret = __thermal_zone_get_trip(tz, trip_id, &trip);
+	if (ret)
+		goto unlock;
+	
+	ret = thermal_zone_set_trip(tz, trip_id, &trip);
 unlock:
 	mutex_unlock(&tz->lock);
 
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 2198b3631f61..e2797f314d99 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -337,6 +337,9 @@ static inline void devm_thermal_of_zone_unregister(struct device *dev,
 int thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
 			  struct thermal_trip *trip);
 
+int thermal_zone_set_trip(struct thermal_zone_device *tz, int trip_id,
+			  const struct thermal_trip *trip);
+
 int thermal_zone_get_num_trips(struct thermal_zone_device *tz);
 
 int thermal_zone_get_crit_temp(struct thermal_zone_device *tz, int *temp);

From 7f725a23f2b7bb338a3d41ce7bf96d6c99bdb0b7 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:37 +0200
Subject: [PATCH 04/37] thermal/core/governors: Use thermal_zone_get_trip()
 instead of ops functions

The governors are using the ops->get_trip_* functions, Replace these
calls with thermal_zone_get_trip().

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> # IPA
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20221003092602.1323944-5-daniel.lezcano@linaro.org
---
 drivers/thermal/gov_bang_bang.c       | 37 +++++++++++--------
 drivers/thermal/gov_fair_share.c      | 18 ++++------
 drivers/thermal/gov_power_allocator.c | 51 ++++++++++++---------------
 drivers/thermal/gov_step_wise.c       | 22 ++++++------
 4 files changed, 61 insertions(+), 67 deletions(-)

diff --git a/drivers/thermal/gov_bang_bang.c b/drivers/thermal/gov_bang_bang.c
index a08bbe33be96..1b121066521f 100644
--- a/drivers/thermal/gov_bang_bang.c
+++ b/drivers/thermal/gov_bang_bang.c
@@ -13,26 +13,28 @@
 
 #include "thermal_core.h"
 
-static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
+static int thermal_zone_trip_update(struct thermal_zone_device *tz, int trip_id)
 {
-	int trip_temp, trip_hyst;
+	struct thermal_trip trip;
 	struct thermal_instance *instance;
+	int ret;
 
-	tz->ops->get_trip_temp(tz, trip, &trip_temp);
+	ret = __thermal_zone_get_trip(tz, trip_id, &trip);
+	if (ret) {
+		pr_warn_once("Failed to retrieve trip point %d\n", trip_id);
+		return ret;
+	}
 
-	if (!tz->ops->get_trip_hyst) {
-		pr_warn_once("Undefined get_trip_hyst for thermal zone %s - "
-				"running with default hysteresis zero\n", tz->type);
-		trip_hyst = 0;
-	} else
-		tz->ops->get_trip_hyst(tz, trip, &trip_hyst);
+	if (!trip.hysteresis)
+		dev_info_once(&tz->device,
+			      "Zero hysteresis value for thermal zone %s\n", tz->type);
 
 	dev_dbg(&tz->device, "Trip%d[temp=%d]:temp=%d:hyst=%d\n",
-				trip, trip_temp, tz->temperature,
-				trip_hyst);
+				trip_id, trip.temperature, tz->temperature,
+				trip.hysteresis);
 
 	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
-		if (instance->trip != trip)
+		if (instance->trip != trip_id)
 			continue;
 
 		/* in case fan is in initial state, switch the fan off */
@@ -50,10 +52,10 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
 		 * enable fan when temperature exceeds trip_temp and disable
 		 * the fan in case it falls below trip_temp minus hysteresis
 		 */
-		if (instance->target == 0 && tz->temperature >= trip_temp)
+		if (instance->target == 0 && tz->temperature >= trip.temperature)
 			instance->target = 1;
 		else if (instance->target == 1 &&
-				tz->temperature <= trip_temp - trip_hyst)
+			 tz->temperature <= trip.temperature - trip.hysteresis)
 			instance->target = 0;
 
 		dev_dbg(&instance->cdev->device, "target=%d\n",
@@ -63,6 +65,8 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
 		instance->cdev->updated = false; /* cdev needs update */
 		mutex_unlock(&instance->cdev->lock);
 	}
+
+	return 0;
 }
 
 /**
@@ -95,10 +99,13 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
 static int bang_bang_control(struct thermal_zone_device *tz, int trip)
 {
 	struct thermal_instance *instance;
+	int ret;
 
 	lockdep_assert_held(&tz->lock);
 
-	thermal_zone_trip_update(tz, trip);
+	ret = thermal_zone_trip_update(tz, trip);
+	if (ret)
+		return ret;
 
 	list_for_each_entry(instance, &tz->thermal_instances, tz_node)
 		thermal_cdev_update(instance->cdev);
diff --git a/drivers/thermal/gov_fair_share.c b/drivers/thermal/gov_fair_share.c
index 1cfeac16e7ac..aad7d5fe3a14 100644
--- a/drivers/thermal/gov_fair_share.c
+++ b/drivers/thermal/gov_fair_share.c
@@ -21,16 +21,12 @@
  */
 static int get_trip_level(struct thermal_zone_device *tz)
 {
-	int count = 0;
-	int trip_temp;
-	enum thermal_trip_type trip_type;
-
-	if (tz->num_trips == 0 || !tz->ops->get_trip_temp)
-		return 0;
+	struct thermal_trip trip;
+	int count;
 
 	for (count = 0; count < tz->num_trips; count++) {
-		tz->ops->get_trip_temp(tz, count, &trip_temp);
-		if (tz->temperature < trip_temp)
+		__thermal_zone_get_trip(tz, count, &trip);
+		if (tz->temperature < trip.temperature)
 			break;
 	}
 
@@ -38,10 +34,8 @@ static int get_trip_level(struct thermal_zone_device *tz)
 	 * count > 0 only if temperature is greater than first trip
 	 * point, in which case, trip_point = count - 1
 	 */
-	if (count > 0) {
-		tz->ops->get_trip_type(tz, count - 1, &trip_type);
-		trace_thermal_zone_trip(tz, count - 1, trip_type);
-	}
+	if (count > 0)
+		trace_thermal_zone_trip(tz, count - 1, trip.type);
 
 	return count;
 }
diff --git a/drivers/thermal/gov_power_allocator.c b/drivers/thermal/gov_power_allocator.c
index d5d4eae16771..0eaf1527d3e3 100644
--- a/drivers/thermal/gov_power_allocator.c
+++ b/drivers/thermal/gov_power_allocator.c
@@ -124,16 +124,15 @@ static void estimate_pid_constants(struct thermal_zone_device *tz,
 				   u32 sustainable_power, int trip_switch_on,
 				   int control_temp)
 {
+	struct thermal_trip trip;
+	u32 temperature_threshold = control_temp;
 	int ret;
-	int switch_on_temp;
-	u32 temperature_threshold;
 	s32 k_i;
 
-	ret = tz->ops->get_trip_temp(tz, trip_switch_on, &switch_on_temp);
-	if (ret)
-		switch_on_temp = 0;
+	ret = __thermal_zone_get_trip(tz, trip_switch_on, &trip);
+	if (!ret)
+		temperature_threshold -= trip.temperature;
 
-	temperature_threshold = control_temp - switch_on_temp;
 	/*
 	 * estimate_pid_constants() tries to find appropriate default
 	 * values for thermal zones that don't provide them. If a
@@ -519,10 +518,10 @@ static void get_governor_trips(struct thermal_zone_device *tz,
 	last_passive = INVALID_TRIP;
 
 	for (i = 0; i < tz->num_trips; i++) {
-		enum thermal_trip_type type;
+		struct thermal_trip trip;
 		int ret;
 
-		ret = tz->ops->get_trip_type(tz, i, &type);
+		ret = __thermal_zone_get_trip(tz, i, &trip);
 		if (ret) {
 			dev_warn(&tz->device,
 				 "Failed to get trip point %d type: %d\n", i,
@@ -530,14 +529,14 @@ static void get_governor_trips(struct thermal_zone_device *tz,
 			continue;
 		}
 
-		if (type == THERMAL_TRIP_PASSIVE) {
+		if (trip.type == THERMAL_TRIP_PASSIVE) {
 			if (!found_first_passive) {
 				params->trip_switch_on = i;
 				found_first_passive = true;
 			} else  {
 				last_passive = i;
 			}
-		} else if (type == THERMAL_TRIP_ACTIVE) {
+		} else if (trip.type == THERMAL_TRIP_ACTIVE) {
 			last_active = i;
 		} else {
 			break;
@@ -632,7 +631,7 @@ static int power_allocator_bind(struct thermal_zone_device *tz)
 {
 	int ret;
 	struct power_allocator_params *params;
-	int control_temp;
+	struct thermal_trip trip;
 
 	ret = check_power_actors(tz);
 	if (ret)
@@ -658,13 +657,12 @@ static int power_allocator_bind(struct thermal_zone_device *tz)
 	get_governor_trips(tz, params);
 
 	if (tz->num_trips > 0) {
-		ret = tz->ops->get_trip_temp(tz,
-					params->trip_max_desired_temperature,
-					&control_temp);
+		ret = __thermal_zone_get_trip(tz, params->trip_max_desired_temperature,
+					      &trip);
 		if (!ret)
 			estimate_pid_constants(tz, tz->tzp->sustainable_power,
 					       params->trip_switch_on,
-					       control_temp);
+					       trip.temperature);
 	}
 
 	reset_pid_controller(params);
@@ -694,11 +692,11 @@ static void power_allocator_unbind(struct thermal_zone_device *tz)
 	tz->governor_data = NULL;
 }
 
-static int power_allocator_throttle(struct thermal_zone_device *tz, int trip)
+static int power_allocator_throttle(struct thermal_zone_device *tz, int trip_id)
 {
-	int ret;
-	int switch_on_temp, control_temp;
 	struct power_allocator_params *params = tz->governor_data;
+	struct thermal_trip trip;
+	int ret;
 	bool update;
 
 	lockdep_assert_held(&tz->lock);
@@ -707,13 +705,12 @@ static int power_allocator_throttle(struct thermal_zone_device *tz, int trip)
 	 * We get called for every trip point but we only need to do
 	 * our calculations once
 	 */
-	if (trip != params->trip_max_desired_temperature)
+	if (trip_id != params->trip_max_desired_temperature)
 		return 0;
 
-	ret = tz->ops->get_trip_temp(tz, params->trip_switch_on,
-				     &switch_on_temp);
-	if (!ret && (tz->temperature < switch_on_temp)) {
-		update = (tz->last_temperature >= switch_on_temp);
+	ret = __thermal_zone_get_trip(tz, params->trip_switch_on, &trip);
+	if (!ret && (tz->temperature < trip.temperature)) {
+		update = (tz->last_temperature >= trip.temperature);
 		tz->passive = 0;
 		reset_pid_controller(params);
 		allow_maximum_power(tz, update);
@@ -722,16 +719,14 @@ static int power_allocator_throttle(struct thermal_zone_device *tz, int trip)
 
 	tz->passive = 1;
 
-	ret = tz->ops->get_trip_temp(tz, params->trip_max_desired_temperature,
-				&control_temp);
+	ret = __thermal_zone_get_trip(tz, params->trip_max_desired_temperature, &trip);
 	if (ret) {
-		dev_warn(&tz->device,
-			 "Failed to get the maximum desired temperature: %d\n",
+		dev_warn(&tz->device, "Failed to get the maximum desired temperature: %d\n",
 			 ret);
 		return ret;
 	}
 
-	return allocate_power(tz, control_temp);
+	return allocate_power(tz, trip.temperature);
 }
 
 static struct thermal_governor thermal_gov_power_allocator = {
diff --git a/drivers/thermal/gov_step_wise.c b/drivers/thermal/gov_step_wise.c
index cdd3354bc27f..31235e169c5a 100644
--- a/drivers/thermal/gov_step_wise.c
+++ b/drivers/thermal/gov_step_wise.c
@@ -95,30 +95,28 @@ static void update_passive_instance(struct thermal_zone_device *tz,
 		tz->passive += value;
 }
 
-static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
+static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip_id)
 {
-	int trip_temp;
-	enum thermal_trip_type trip_type;
 	enum thermal_trend trend;
 	struct thermal_instance *instance;
+	struct thermal_trip trip;
 	bool throttle = false;
 	int old_target;
 
-	tz->ops->get_trip_temp(tz, trip, &trip_temp);
-	tz->ops->get_trip_type(tz, trip, &trip_type);
+	__thermal_zone_get_trip(tz, trip_id, &trip);
 
-	trend = get_tz_trend(tz, trip);
+	trend = get_tz_trend(tz, trip_id);
 
-	if (tz->temperature >= trip_temp) {
+	if (tz->temperature >= trip.temperature) {
 		throttle = true;
-		trace_thermal_zone_trip(tz, trip, trip_type);
+		trace_thermal_zone_trip(tz, trip_id, trip.type);
 	}
 
 	dev_dbg(&tz->device, "Trip%d[type=%d,temp=%d]:trend=%d,throttle=%d\n",
-				trip, trip_type, trip_temp, trend, throttle);
+				trip_id, trip.type, trip.temperature, trend, throttle);
 
 	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
-		if (instance->trip != trip)
+		if (instance->trip != trip_id)
 			continue;
 
 		old_target = instance->target;
@@ -132,11 +130,11 @@ static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
 		/* Activate a passive thermal instance */
 		if (old_target == THERMAL_NO_TARGET &&
 			instance->target != THERMAL_NO_TARGET)
-			update_passive_instance(tz, trip_type, 1);
+			update_passive_instance(tz, trip.type, 1);
 		/* Deactivate a passive thermal instance */
 		else if (old_target != THERMAL_NO_TARGET &&
 			instance->target == THERMAL_NO_TARGET)
-			update_passive_instance(tz, trip_type, -1);
+			update_passive_instance(tz, trip.type, -1);
 
 		instance->initialized = true;
 		mutex_lock(&instance->cdev->lock);

From 453a55a97b5bc3e4418d6b9b2f07c7899d56d1ae Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:38 +0200
Subject: [PATCH 05/37] thermal/of: Use generic thermal_zone_get_trip()
 function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

The thermal OF code uses the thermal_zone_device_register_with_trips()
function. It builds the trips array and pass it to the register
function. That means the get_trip_* ops are duplicated with what does
already the core code.

Remove them.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-6-daniel.lezcano@linaro.org
---
 drivers/thermal/thermal_of.c | 36 ------------------------------------
 1 file changed, 36 deletions(-)

diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index aacba30bc10c..1fdf26c19448 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -71,39 +71,6 @@ of_thermal_get_trip_points(struct thermal_zone_device *tz)
 }
 EXPORT_SYMBOL_GPL(of_thermal_get_trip_points);
 
-static int of_thermal_get_trip_type(struct thermal_zone_device *tz, int trip,
-				    enum thermal_trip_type *type)
-{
-	if (trip >= tz->num_trips || trip < 0)
-		return -EDOM;
-
-	*type = tz->trips[trip].type;
-
-	return 0;
-}
-
-static int of_thermal_get_trip_temp(struct thermal_zone_device *tz, int trip,
-				    int *temp)
-{
-	if (trip >= tz->num_trips || trip < 0)
-		return -EDOM;
-
-	*temp = tz->trips[trip].temperature;
-
-	return 0;
-}
-
-static int of_thermal_get_trip_hyst(struct thermal_zone_device *tz, int trip,
-				    int *hyst)
-{
-	if (trip >= tz->num_trips || trip < 0)
-		return -EDOM;
-
-	*hyst = tz->trips[trip].hysteresis;
-
-	return 0;
-}
-
 static int of_thermal_set_trip_hyst(struct thermal_zone_device *tz, int trip,
 				    int hyst)
 {
@@ -628,9 +595,6 @@ struct thermal_zone_device *thermal_of_zone_register(struct device_node *sensor,
 		goto out_kfree_trips;
 	}
 
-	of_ops->get_trip_type = of_ops->get_trip_type ? : of_thermal_get_trip_type;
-	of_ops->get_trip_temp = of_ops->get_trip_temp ? : of_thermal_get_trip_temp;
-	of_ops->get_trip_hyst = of_ops->get_trip_hyst ? : of_thermal_get_trip_hyst;
 	of_ops->set_trip_hyst = of_ops->set_trip_hyst ? : of_thermal_set_trip_hyst;
 	of_ops->get_crit_temp = of_ops->get_crit_temp ? : of_thermal_get_crit_temp;
 	of_ops->bind = thermal_of_bind;

From 5c4855d7653372f1e311b69642e8f0cc79d63f38 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:39 +0200
Subject: [PATCH 06/37] thermal/of: Remove unused functions

Remove the dead code: of_thermal_get_trip_points()

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-7-daniel.lezcano@linaro.org
---
 drivers/thermal/thermal_core.h |  7 -------
 drivers/thermal/thermal_of.c   | 17 -----------------
 2 files changed, 24 deletions(-)

diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index 5f475b0a8c2f..ef7800a15908 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -142,8 +142,6 @@ thermal_cooling_device_stats_update(struct thermal_cooling_device *cdev,
 #ifdef CONFIG_THERMAL_OF
 int of_thermal_get_ntrips(struct thermal_zone_device *);
 bool of_thermal_is_trip_valid(struct thermal_zone_device *, int);
-const struct thermal_trip *
-of_thermal_get_trip_points(struct thermal_zone_device *);
 #else
 static inline int of_thermal_get_ntrips(struct thermal_zone_device *tz)
 {
@@ -154,11 +152,6 @@ static inline bool of_thermal_is_trip_valid(struct thermal_zone_device *tz,
 {
 	return false;
 }
-static inline const struct thermal_trip *
-of_thermal_get_trip_points(struct thermal_zone_device *tz)
-{
-	return NULL;
-}
 #endif
 
 int thermal_zone_device_is_enabled(struct thermal_zone_device *tz);
diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index 1fdf26c19448..2e8b1d635b3b 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -54,23 +54,6 @@ bool of_thermal_is_trip_valid(struct thermal_zone_device *tz, int trip)
 }
 EXPORT_SYMBOL_GPL(of_thermal_is_trip_valid);
 
-/**
- * of_thermal_get_trip_points - function to get access to a globally exported
- *				trip points
- *
- * @tz:	pointer to a thermal zone
- *
- * This function provides a pointer to trip points table
- *
- * Return: pointer to trip points table, NULL otherwise
- */
-const struct thermal_trip *
-of_thermal_get_trip_points(struct thermal_zone_device *tz)
-{
-	return tz->trips;
-}
-EXPORT_SYMBOL_GPL(of_thermal_get_trip_points);
-
 static int of_thermal_set_trip_hyst(struct thermal_zone_device *tz, int trip,
 				    int hyst)
 {

From ca38255e92112c4204dbd551934505baf25849f4 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:40 +0200
Subject: [PATCH 07/37] thermal/drivers/exynos: Use generic
 thermal_zone_get_trip() function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-8-daniel.lezcano@linaro.org
---
 drivers/thermal/samsung/exynos_tmu.c | 41 +++++++++++-----------------
 1 file changed, 16 insertions(+), 25 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 51874d0a284c..7b609bd3bf17 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -260,16 +260,8 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
 {
 	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
 	struct thermal_zone_device *tzd = data->tzd;
-	const struct thermal_trip * const trips =
-		of_thermal_get_trip_points(tzd);
 	unsigned int status;
-	int ret = 0, temp, hyst;
-
-	if (!trips) {
-		dev_err(&pdev->dev,
-			"Cannot get trip points from device tree!\n");
-		return -ENODEV;
-	}
+	int ret = 0, temp;
 
 	if (data->soc != SOC_ARCH_EXYNOS5433) /* FIXME */
 		ret = tzd->ops->get_crit_temp(tzd, &temp);
@@ -303,19 +295,16 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
 
 		/* Write temperature code for rising and falling threshold */
 		for (i = 0; i < ntrips; i++) {
-			/* Write temperature code for rising threshold */
-			ret = tzd->ops->get_trip_temp(tzd, i, &temp);
-			if (ret)
-				goto err;
-			temp /= MCELSIUS;
-			data->tmu_set_trip_temp(data, i, temp);
 
-			/* Write temperature code for falling threshold */
-			ret = tzd->ops->get_trip_hyst(tzd, i, &hyst);
+			struct thermal_trip trip;
+
+			ret = thermal_zone_get_trip(tzd, i, &trip);
 			if (ret)
 				goto err;
-			hyst /= MCELSIUS;
-			data->tmu_set_trip_hyst(data, i, temp, hyst);
+
+			data->tmu_set_trip_temp(data, i, trip.temperature / MCELSIUS);
+			data->tmu_set_trip_hyst(data, i, trip.temperature / MCELSIUS,
+						trip.hysteresis / MCELSIUS);
 		}
 
 		data->tmu_clear_irqs(data);
@@ -360,21 +349,23 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on)
 }
 
 static void exynos4210_tmu_set_trip_temp(struct exynos_tmu_data *data,
-					 int trip, u8 temp)
+					 int trip_id, u8 temp)
 {
-	const struct thermal_trip * const trips =
-		of_thermal_get_trip_points(data->tzd);
+	struct thermal_trip trip;
 	u8 ref, th_code;
 
-	ref = trips[0].temperature / MCELSIUS;
+	if (thermal_zone_get_trip(data->tzd, 0, &trip))
+		return;
 
-	if (trip == 0) {
+	ref = trip.temperature / MCELSIUS;
+
+	if (trip_id == 0) {
 		th_code = temp_to_code(data, ref);
 		writeb(th_code, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP);
 	}
 
 	temp -= ref;
-	writeb(temp, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + trip * 4);
+	writeb(temp, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + trip_id * 4);
 }
 
 /* failing thresholds are not supported on Exynos4210 */

From a3b3dd381a0806cf19dab07a16f066e64d70a32d Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:41 +0200
Subject: [PATCH 08/37] thermal/drivers/exynos: of_thermal_get_ntrips()

The thermal core framework allows to get the number of thermal trips,
use it instead of visiting the thermal core structure internals.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-9-daniel.lezcano@linaro.org
---
 drivers/thermal/samsung/exynos_tmu.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 7b609bd3bf17..254138745150 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -260,6 +260,7 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
 {
 	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
 	struct thermal_zone_device *tzd = data->tzd;
+	int num_trips = thermal_zone_get_num_trips(tzd);
 	unsigned int status;
 	int ret = 0, temp;
 
@@ -271,12 +272,12 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
 		goto out;
 	}
 
-	if (of_thermal_get_ntrips(tzd) > data->ntrip) {
+	if (num_trips > data->ntrip) {
 		dev_info(&pdev->dev,
 			 "More trip points than supported by this TMU.\n");
 		dev_info(&pdev->dev,
 			 "%d trip points should be configured in polling mode.\n",
-			 (of_thermal_get_ntrips(tzd) - data->ntrip));
+			 num_trips - data->ntrip);
 	}
 
 	mutex_lock(&data->lock);
@@ -289,7 +290,7 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
 		ret = -EBUSY;
 	} else {
 		int i, ntrips =
-			min_t(int, of_thermal_get_ntrips(tzd), data->ntrip);
+			min_t(int, num_trips, data->ntrip);
 
 		data->tmu_initialize(pdev);
 

From 03ef4855a825f9ba7195454f6498e0f056be995a Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:42 +0200
Subject: [PATCH 09/37] thermal/drivers/exynos: Replace
 of_thermal_is_trip_valid() by thermal_zone_get_trip()

The thermal_zone_get_trip() does the same check as
of_thermal_is_trip_valid(). Replace the call to
of_thermal_is_trip_valid() by thermal_zone_get_trip().

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-10-daniel.lezcano@linaro.org
---
 drivers/thermal/samsung/exynos_tmu.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 254138745150..5a1ffe2f3134 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -554,13 +554,14 @@ static void exynos4210_tmu_control(struct platform_device *pdev, bool on)
 {
 	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
 	struct thermal_zone_device *tz = data->tzd;
+	struct thermal_trip trip;
 	unsigned int con, interrupt_en = 0, i;
 
 	con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL));
 
 	if (on) {
 		for (i = 0; i < data->ntrip; i++) {
-			if (!of_thermal_is_trip_valid(tz, i))
+			if (thermal_zone_get_trip(tz, i, &trip))
 				continue;
 
 			interrupt_en |=
@@ -584,13 +585,14 @@ static void exynos5433_tmu_control(struct platform_device *pdev, bool on)
 {
 	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
 	struct thermal_zone_device *tz = data->tzd;
+	struct thermal_trip trip;
 	unsigned int con, interrupt_en = 0, pd_det_en, i;
 
 	con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL));
 
 	if (on) {
 		for (i = 0; i < data->ntrip; i++) {
-			if (!of_thermal_is_trip_valid(tz, i))
+			if (thermal_zone_get_trip(tz, i, &trip))
 				continue;
 
 			interrupt_en |=
@@ -615,13 +617,14 @@ static void exynos7_tmu_control(struct platform_device *pdev, bool on)
 {
 	struct exynos_tmu_data *data = platform_get_drvdata(pdev);
 	struct thermal_zone_device *tz = data->tzd;
+	struct thermal_trip trip;
 	unsigned int con, interrupt_en = 0, i;
 
 	con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL));
 
 	if (on) {
 		for (i = 0; i < data->ntrip; i++) {
-			if (!of_thermal_is_trip_valid(tz, i))
+			if (thermal_zone_get_trip(tz, i, &trip))
 				continue;
 
 			interrupt_en |=

From 735a968d2fea8b6516d01efce2295d4f878bbbaf Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:43 +0200
Subject: [PATCH 10/37] thermal/drivers/tegra: Use generic
 thermal_zone_get_trip() function

Replace a single call to thermal_zone_get_trip() to get a trip point
instead of calling the different ops->get_trip*

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-11-daniel.lezcano@linaro.org
---
 drivers/thermal/tegra/soctherm.c        | 33 +++++++++++--------------
 drivers/thermal/tegra/tegra30-tsensor.c | 17 ++++++-------
 2 files changed, 22 insertions(+), 28 deletions(-)

diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c
index 1efe470f31e9..d2e454902689 100644
--- a/drivers/thermal/tegra/soctherm.c
+++ b/drivers/thermal/tegra/soctherm.c
@@ -582,23 +582,23 @@ static int tsensor_group_thermtrip_get(struct tegra_soctherm *ts, int id)
 	return temp;
 }
 
-static int tegra_thermctl_set_trip_temp(struct thermal_zone_device *tz, int trip, int temp)
+static int tegra_thermctl_set_trip_temp(struct thermal_zone_device *tz, int trip_id, int temp)
 {
 	struct tegra_thermctl_zone *zone = tz->devdata;
 	struct tegra_soctherm *ts = zone->ts;
+	struct thermal_trip trip;
 	const struct tegra_tsensor_group *sg = zone->sg;
 	struct device *dev = zone->dev;
-	enum thermal_trip_type type;
 	int ret;
 
 	if (!tz)
 		return -EINVAL;
 
-	ret = tz->ops->get_trip_type(tz, trip, &type);
+	ret = thermal_zone_get_trip(tz, trip_id, &trip);
 	if (ret)
 		return ret;
 
-	if (type == THERMAL_TRIP_CRITICAL) {
+	if (trip.type == THERMAL_TRIP_CRITICAL) {
 		/*
 		 * If thermtrips property is set in DT,
 		 * doesn't need to program critical type trip to HW,
@@ -609,7 +609,7 @@ static int tegra_thermctl_set_trip_temp(struct thermal_zone_device *tz, int trip
 		else
 			return 0;
 
-	} else if (type == THERMAL_TRIP_HOT) {
+	} else if (trip.type == THERMAL_TRIP_HOT) {
 		int i;
 
 		for (i = 0; i < THROTTLE_SIZE; i++) {
@@ -620,7 +620,7 @@ static int tegra_thermctl_set_trip_temp(struct thermal_zone_device *tz, int trip
 				continue;
 
 			cdev = ts->throt_cfgs[i].cdev;
-			if (get_thermal_instance(tz, cdev, trip))
+			if (get_thermal_instance(tz, cdev, trip_id))
 				stc = find_throttle_cfg_by_name(ts, cdev->type);
 			else
 				continue;
@@ -687,25 +687,20 @@ static const struct thermal_zone_device_ops tegra_of_thermal_ops = {
 	.set_trips = tegra_thermctl_set_trips,
 };
 
-static int get_hot_temp(struct thermal_zone_device *tz, int *trip, int *temp)
+static int get_hot_temp(struct thermal_zone_device *tz, int *trip_id, int *temp)
 {
-	int ntrips, i, ret;
-	enum thermal_trip_type type;
+	int i, ret;
+	struct thermal_trip trip;
 
-	ntrips = of_thermal_get_ntrips(tz);
-	if (ntrips <= 0)
-		return -EINVAL;
+	for (i = 0; i < thermal_zone_get_num_trips(tz); i++) {
 
-	for (i = 0; i < ntrips; i++) {
-		ret = tz->ops->get_trip_type(tz, i, &type);
+		ret = thermal_zone_get_trip(tz, i, &trip);
 		if (ret)
 			return -EINVAL;
-		if (type == THERMAL_TRIP_HOT) {
-			ret = tz->ops->get_trip_temp(tz, i, temp);
-			if (!ret)
-				*trip = i;
 
-			return ret;
+		if (trip.type == THERMAL_TRIP_HOT) {
+			*trip_id = i;
+			return 0;
 		}
 	}
 
diff --git a/drivers/thermal/tegra/tegra30-tsensor.c b/drivers/thermal/tegra/tegra30-tsensor.c
index c34501287e96..0ffe37ce7df7 100644
--- a/drivers/thermal/tegra/tegra30-tsensor.c
+++ b/drivers/thermal/tegra/tegra30-tsensor.c
@@ -316,18 +316,17 @@ static void tegra_tsensor_get_hw_channel_trips(struct thermal_zone_device *tzd,
 	*hot_trip  = 85000;
 	*crit_trip = 90000;
 
-	for (i = 0; i < tzd->num_trips; i++) {
-		enum thermal_trip_type type;
-		int trip_temp;
+	for (i = 0; i < thermal_zone_get_num_trips(tzd); i++) {
 
-		tzd->ops->get_trip_temp(tzd, i, &trip_temp);
-		tzd->ops->get_trip_type(tzd, i, &type);
+		struct thermal_trip trip;
 
-		if (type == THERMAL_TRIP_HOT)
-			*hot_trip = trip_temp;
+		thermal_zone_get_trip(tzd, i, &trip);
 
-		if (type == THERMAL_TRIP_CRITICAL)
-			*crit_trip = trip_temp;
+		if (trip.type == THERMAL_TRIP_HOT)
+			*hot_trip = trip.temperature;
+
+		if (trip.type == THERMAL_TRIP_CRITICAL)
+			*crit_trip = trip.temperature;
 	}
 
 	/* clamp hardware trips to the calibration limits */

From c7ed8cab4079ec2e762393720aba1d3075935056 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:44 +0200
Subject: [PATCH 11/37] thermal/drivers/uniphier: Use generic
 thermal_zone_get_trip() function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20221003092602.1323944-12-daniel.lezcano@linaro.org
---
 drivers/thermal/uniphier_thermal.c | 27 ++++++++++++---------------
 1 file changed, 12 insertions(+), 15 deletions(-)

diff --git a/drivers/thermal/uniphier_thermal.c b/drivers/thermal/uniphier_thermal.c
index 4111d99ef50e..277ae300c5b1 100644
--- a/drivers/thermal/uniphier_thermal.c
+++ b/drivers/thermal/uniphier_thermal.c
@@ -248,8 +248,7 @@ static int uniphier_tm_probe(struct platform_device *pdev)
 	struct regmap *regmap;
 	struct device_node *parent;
 	struct uniphier_tm_dev *tdev;
-	const struct thermal_trip *trips;
-	int i, ret, irq, ntrips, crit_temp = INT_MAX;
+	int i, ret, irq, crit_temp = INT_MAX;
 
 	tdev = devm_kzalloc(dev, sizeof(*tdev), GFP_KERNEL);
 	if (!tdev)
@@ -296,20 +295,18 @@ static int uniphier_tm_probe(struct platform_device *pdev)
 		return PTR_ERR(tdev->tz_dev);
 	}
 
-	/* get trip points */
-	trips = of_thermal_get_trip_points(tdev->tz_dev);
-	ntrips = of_thermal_get_ntrips(tdev->tz_dev);
-	if (ntrips > ALERT_CH_NUM) {
-		dev_err(dev, "thermal zone has too many trips\n");
-		return -E2BIG;
-	}
-
 	/* set alert temperatures */
-	for (i = 0; i < ntrips; i++) {
-		if (trips[i].type == THERMAL_TRIP_CRITICAL &&
-		    trips[i].temperature < crit_temp)
-			crit_temp = trips[i].temperature;
-		uniphier_tm_set_alert(tdev, i, trips[i].temperature);
+	for (i = 0; i < thermal_zone_get_num_trips(tdev->tz_dev); i++) {
+		struct thermal_trip trip;
+
+		ret = thermal_zone_get_trip(tdev->tz_dev, i, &trip);
+		if (ret)
+			return ret;
+
+		if (trip.type == THERMAL_TRIP_CRITICAL &&
+		    trip.temperature < crit_temp)
+			crit_temp = trip.temperature;
+		uniphier_tm_set_alert(tdev, i, trip.temperature);
 		tdev->alert_en[i] = true;
 	}
 	if (crit_temp > CRITICAL_TEMP_LIMIT) {

From 68a306cc839718d1875b46ebf73c25c8fa7f704a Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:45 +0200
Subject: [PATCH 12/37] thermal/drivers/hisi: Use generic
 thermal_zone_get_trip() function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-13-daniel.lezcano@linaro.org
---
 drivers/thermal/hisi_thermal.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index d6974db7aaf7..45226cab466e 100644
--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -482,7 +482,7 @@ static int hisi_thermal_register_sensor(struct platform_device *pdev,
 					struct hisi_thermal_sensor *sensor)
 {
 	int ret, i;
-	const struct thermal_trip *trip;
+	struct thermal_trip trip;
 
 	sensor->tzd = devm_thermal_of_zone_register(&pdev->dev,
 						    sensor->id, sensor,
@@ -495,11 +495,12 @@ static int hisi_thermal_register_sensor(struct platform_device *pdev,
 		return ret;
 	}
 
-	trip = of_thermal_get_trip_points(sensor->tzd);
+	for (i = 0; i < thermal_zone_get_num_trips(sensor->tzd); i++) {
 
-	for (i = 0; i < of_thermal_get_ntrips(sensor->tzd); i++) {
-		if (trip[i].type == THERMAL_TRIP_PASSIVE) {
-			sensor->thres_temp = trip[i].temperature;
+		thermal_zone_get_trip(sensor->tzd, i, &trip);
+
+		if (trip.type == THERMAL_TRIP_PASSIVE) {
+			sensor->thres_temp = trip.temperature;
 			break;
 		}
 	}

From 1fa86b0a36927ed13a1505c9ee7b80c66718c733 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:46 +0200
Subject: [PATCH 13/37] thermal/drivers/qcom: Use generic
 thermal_zone_get_trip() function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Amit Kucheria <amitk@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-14-daniel.lezcano@linaro.org
---
 drivers/thermal/qcom/qcom-spmi-temp-alarm.c | 33 +++++++++------------
 1 file changed, 14 insertions(+), 19 deletions(-)

diff --git a/drivers/thermal/qcom/qcom-spmi-temp-alarm.c b/drivers/thermal/qcom/qcom-spmi-temp-alarm.c
index ad84978109e6..58055a7abaf6 100644
--- a/drivers/thermal/qcom/qcom-spmi-temp-alarm.c
+++ b/drivers/thermal/qcom/qcom-spmi-temp-alarm.c
@@ -264,17 +264,17 @@ static int qpnp_tm_update_critical_trip_temp(struct qpnp_tm_chip *chip,
 	return qpnp_tm_write(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, reg);
 }
 
-static int qpnp_tm_set_trip_temp(struct thermal_zone_device *tz, int trip, int temp)
+static int qpnp_tm_set_trip_temp(struct thermal_zone_device *tz, int trip_id, int temp)
 {
 	struct qpnp_tm_chip *chip = tz->devdata;
-	const struct thermal_trip *trip_points;
+	struct thermal_trip trip;
 	int ret;
 
-	trip_points = of_thermal_get_trip_points(chip->tz_dev);
-	if (!trip_points)
-		return -EINVAL;
+	ret = thermal_zone_get_trip(chip->tz_dev, trip_id, &trip);
+	if (ret)
+		return ret;
 
-	if (trip_points[trip].type != THERMAL_TRIP_CRITICAL)
+	if (trip.type != THERMAL_TRIP_CRITICAL)
 		return 0;
 
 	mutex_lock(&chip->lock);
@@ -300,22 +300,17 @@ static irqreturn_t qpnp_tm_isr(int irq, void *data)
 
 static int qpnp_tm_get_critical_trip_temp(struct qpnp_tm_chip *chip)
 {
-	int ntrips;
-	const struct thermal_trip *trips;
-	int i;
+	struct thermal_trip trip;
+	int i, ret;
 
-	ntrips = of_thermal_get_ntrips(chip->tz_dev);
-	if (ntrips <= 0)
-		return THERMAL_TEMP_INVALID;
+	for (i = 0; i < thermal_zone_get_num_trips(chip->tz_dev); i++) {
 
-	trips = of_thermal_get_trip_points(chip->tz_dev);
-	if (!trips)
-		return THERMAL_TEMP_INVALID;
+		ret = thermal_zone_get_trip(chip->tz_dev, i, &trip);
+		if (ret)
+			continue;
 
-	for (i = 0; i < ntrips; i++) {
-		if (of_thermal_is_trip_valid(chip->tz_dev, i) &&
-		    trips[i].type == THERMAL_TRIP_CRITICAL)
-			return trips[i].temperature;
+		if (trip.type == THERMAL_TRIP_CRITICAL)
+			return trip.temperature;
 	}
 
 	return THERMAL_TEMP_INVALID;

From eb2bb3be1384d91b65c7ca956f6fe7bfd5391ee2 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:47 +0200
Subject: [PATCH 14/37] thermal/drivers/armada: Use generic
 thermal_zone_get_trip() function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-15-daniel.lezcano@linaro.org
---
 drivers/thermal/armada_thermal.c | 37 ++++++++++++++++----------------
 1 file changed, 19 insertions(+), 18 deletions(-)

diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c
index 52d63b3997fe..b28695a55eea 100644
--- a/drivers/thermal/armada_thermal.c
+++ b/drivers/thermal/armada_thermal.c
@@ -785,33 +785,34 @@ static int armada_configure_overheat_int(struct armada_thermal_priv *priv,
 					 int sensor_id)
 {
 	/* Retrieve the critical trip point to enable the overheat interrupt */
-	const struct thermal_trip *trips = of_thermal_get_trip_points(tz);
+	struct thermal_trip trip;
 	int ret;
 	int i;
 
-	if (!trips)
-		return -EINVAL;
+	for (i = 0; i < thermal_zone_get_num_trips(tz); i++) {
 
-	for (i = 0; i < of_thermal_get_ntrips(tz); i++)
-		if (trips[i].type == THERMAL_TRIP_CRITICAL)
-			break;
+		ret = thermal_zone_get_trip(tz, i, &trip);
+		if (ret)
+			return ret;
 
-	if (i == of_thermal_get_ntrips(tz))
-		return -EINVAL;
+		if (trip.type != THERMAL_TRIP_CRITICAL)
+			continue;
 
-	ret = armada_select_channel(priv, sensor_id);
-	if (ret)
-		return ret;
+		ret = armada_select_channel(priv, sensor_id);
+		if (ret)
+			return ret;
 
-	armada_set_overheat_thresholds(priv,
-				       trips[i].temperature,
-				       trips[i].hysteresis);
-	priv->overheat_sensor = tz;
-	priv->interrupt_source = sensor_id;
+		armada_set_overheat_thresholds(priv, trip.temperature,
+					       trip.hysteresis);
+		priv->overheat_sensor = tz;
+		priv->interrupt_source = sensor_id;
 
-	armada_enable_overheat_interrupt(priv);
+		armada_enable_overheat_interrupt(priv);
 
-	return 0;
+		return 0;
+	}
+
+	return -EINVAL;
 }
 
 static int armada_thermal_probe(struct platform_device *pdev)

From d5299c1b829f4754e2fa0c62ac6b02545efe4329 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:48 +0200
Subject: [PATCH 15/37] thermal/drivers/rcar_gen3: Use the generic function to
 get the number of trips
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The thermal core framework allows to get the number of thermal trips,
use it instead of visiting the thermal core structure internals.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20221003092602.1323944-16-daniel.lezcano@linaro.org
---
 drivers/thermal/rcar_gen3_thermal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c
index 4c1c6f89aa2f..4ef927437842 100644
--- a/drivers/thermal/rcar_gen3_thermal.c
+++ b/drivers/thermal/rcar_gen3_thermal.c
@@ -529,7 +529,7 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
 		if (ret)
 			goto error_unregister;
 
-		ret = of_thermal_get_ntrips(tsc->zone);
+		ret = thermal_zone_get_num_trips(tsc->zone);
 		if (ret < 0)
 			goto error_unregister;
 

From 2480b02a36cec8a71dba8fc3e4caeaed03669e62 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:49 +0200
Subject: [PATCH 16/37] thermal/of: Remove of_thermal_get_ntrips()

The thermal OF code uses the generic trip points to initialize the
thermal zone. Consequently thermal_zone_get_num_trips() can be used
and the of_thermal_get_ntrips() is no longer needed. Remove it.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-17-daniel.lezcano@linaro.org
---
 drivers/thermal/thermal_core.h |  5 -----
 drivers/thermal/thermal_of.c   | 16 ----------------
 2 files changed, 21 deletions(-)

diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index ef7800a15908..6cda4a180e12 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -140,13 +140,8 @@ thermal_cooling_device_stats_update(struct thermal_cooling_device *cdev,
 
 /* device tree support */
 #ifdef CONFIG_THERMAL_OF
-int of_thermal_get_ntrips(struct thermal_zone_device *);
 bool of_thermal_is_trip_valid(struct thermal_zone_device *, int);
 #else
-static inline int of_thermal_get_ntrips(struct thermal_zone_device *tz)
-{
-	return 0;
-}
 static inline bool of_thermal_is_trip_valid(struct thermal_zone_device *tz,
 					    int trip)
 {
diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index 2e8b1d635b3b..6cb3b59cab6d 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -19,22 +19,6 @@
 
 #include "thermal_core.h"
 
-/**
- * of_thermal_get_ntrips - function to export number of available trip
- *			   points.
- * @tz: pointer to a thermal zone
- *
- * This function is a globally visible wrapper to get number of trip points
- * stored in the local struct __thermal_zone
- *
- * Return: number of available trip points, -ENODEV when data not available
- */
-int of_thermal_get_ntrips(struct thermal_zone_device *tz)
-{
-	return tz->num_trips;
-}
-EXPORT_SYMBOL_GPL(of_thermal_get_ntrips);
-
 /**
  * of_thermal_is_trip_valid - function to check if trip point is valid
  *

From f9061f4e15c5e1f322f7765a7b054bafd4d0bc59 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:50 +0200
Subject: [PATCH 17/37] thermal/of: Remove of_thermal_is_trip_valid()

There is no benefit with the of_thermal_is_trip_valid() function as it
does the check the thermal_zone_get_trip() is already doing for the
sake of getting the trip point.

As all the calls have been replaced by thermal_zone_get_trip(), there
is no more users of of_thermal_is_trip_valid().

Remove the function.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-18-daniel.lezcano@linaro.org
---
 drivers/thermal/thermal_core.h | 10 ----------
 drivers/thermal/thermal_of.c   | 19 -------------------
 2 files changed, 29 deletions(-)

diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index 6cda4a180e12..26350206a98d 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -139,16 +139,6 @@ thermal_cooling_device_stats_update(struct thermal_cooling_device *cdev,
 #endif /* CONFIG_THERMAL_STATISTICS */
 
 /* device tree support */
-#ifdef CONFIG_THERMAL_OF
-bool of_thermal_is_trip_valid(struct thermal_zone_device *, int);
-#else
-static inline bool of_thermal_is_trip_valid(struct thermal_zone_device *tz,
-					    int trip)
-{
-	return false;
-}
-#endif
-
 int thermal_zone_device_is_enabled(struct thermal_zone_device *tz);
 
 #endif /* __THERMAL_CORE_H__ */
diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index 6cb3b59cab6d..d6fe349b3c5a 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -19,25 +19,6 @@
 
 #include "thermal_core.h"
 
-/**
- * of_thermal_is_trip_valid - function to check if trip point is valid
- *
- * @tz:	pointer to a thermal zone
- * @trip:	trip point to evaluate
- *
- * This function is responsible for checking if passed trip point is valid
- *
- * Return: true if trip point is valid, false otherwise
- */
-bool of_thermal_is_trip_valid(struct thermal_zone_device *tz, int trip)
-{
-	if (trip >= tz->num_trips || trip < 0)
-		return false;
-
-	return true;
-}
-EXPORT_SYMBOL_GPL(of_thermal_is_trip_valid);
-
 static int of_thermal_set_trip_hyst(struct thermal_zone_device *tz, int trip,
 				    int hyst)
 {

From 810245133eaec213517bad835e394cbf4fb2d6cd Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:51 +0200
Subject: [PATCH 18/37] thermal/of: Remove of_thermal_set_trip_hyst()

The thermal core is providing the generic thermal_zone_set_trip()
function which does exactly what the OF ops function is doing.

It is pointless to define our own version, just remove the ops and the
thermal_zone_set_trip() will take care of it.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-19-daniel.lezcano@linaro.org
---
 drivers/thermal/thermal_of.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index d6fe349b3c5a..2fcdb3e459c0 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -19,18 +19,6 @@
 
 #include "thermal_core.h"
 
-static int of_thermal_set_trip_hyst(struct thermal_zone_device *tz, int trip,
-				    int hyst)
-{
-	if (trip >= tz->num_trips || trip < 0)
-		return -EDOM;
-
-	/* thermal framework should take care of data->mask & (1 << trip) */
-	tz->trips[trip].hysteresis = hyst;
-
-	return 0;
-}
-
 static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
 				    int *temp)
 {
@@ -543,7 +531,6 @@ struct thermal_zone_device *thermal_of_zone_register(struct device_node *sensor,
 		goto out_kfree_trips;
 	}
 
-	of_ops->set_trip_hyst = of_ops->set_trip_hyst ? : of_thermal_set_trip_hyst;
 	of_ops->get_crit_temp = of_ops->get_crit_temp ? : of_thermal_get_crit_temp;
 	of_ops->bind = thermal_of_bind;
 	of_ops->unbind = thermal_of_unbind;

From aacfbf15e0ac2ba1e1b848fc439a9c7c7fd90934 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:52 +0200
Subject: [PATCH 19/37] thermal/of: Remove of_thermal_get_crit_temp()

The generic version of of_thermal_get_crit_temp() can be used. Let's
remove this ops which is pointless.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-20-daniel.lezcano@linaro.org
---
 drivers/thermal/thermal_of.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index 2fcdb3e459c0..ff4d12ef51bc 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -19,20 +19,6 @@
 
 #include "thermal_core.h"
 
-static int of_thermal_get_crit_temp(struct thermal_zone_device *tz,
-				    int *temp)
-{
-	int i;
-
-	for (i = 0; i < tz->num_trips; i++)
-		if (tz->trips[i].type == THERMAL_TRIP_CRITICAL) {
-			*temp = tz->trips[i].temperature;
-			return 0;
-		}
-
-	return -EINVAL;
-}
-
 /***   functions parsing device tree nodes   ***/
 
 static int of_find_trip_id(struct device_node *np, struct device_node *trip)
@@ -531,7 +517,6 @@ struct thermal_zone_device *thermal_of_zone_register(struct device_node *sensor,
 		goto out_kfree_trips;
 	}
 
-	of_ops->get_crit_temp = of_ops->get_crit_temp ? : of_thermal_get_crit_temp;
 	of_ops->bind = thermal_of_bind;
 	of_ops->unbind = thermal_of_unbind;
 

From 28fd2cd9b38ba82578d21e71acd93010a77c9942 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:53 +0200
Subject: [PATCH 20/37] thermal/drivers/st: Use generic trip points

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert to the generic trip points

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-21-daniel.lezcano@linaro.org
---
 drivers/thermal/st/st_thermal.c | 47 +++++----------------------------
 1 file changed, 7 insertions(+), 40 deletions(-)

diff --git a/drivers/thermal/st/st_thermal.c b/drivers/thermal/st/st_thermal.c
index 1276b95604fe..1009f08e64e3 100644
--- a/drivers/thermal/st/st_thermal.c
+++ b/drivers/thermal/st/st_thermal.c
@@ -134,48 +134,12 @@ static int st_thermal_get_temp(struct thermal_zone_device *th, int *temperature)
 	return 0;
 }
 
-static int st_thermal_get_trip_type(struct thermal_zone_device *th,
-				int trip, enum thermal_trip_type *type)
-{
-	struct st_thermal_sensor *sensor = th->devdata;
-	struct device *dev = sensor->dev;
-
-	switch (trip) {
-	case 0:
-		*type = THERMAL_TRIP_CRITICAL;
-		break;
-	default:
-		dev_err(dev, "invalid trip point\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int st_thermal_get_trip_temp(struct thermal_zone_device *th,
-				    int trip, int *temp)
-{
-	struct st_thermal_sensor *sensor = th->devdata;
-	struct device *dev = sensor->dev;
-
-	switch (trip) {
-	case 0:
-		*temp = mcelsius(sensor->cdata->crit_temp);
-		break;
-	default:
-		dev_err(dev, "Invalid trip point\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
 static struct thermal_zone_device_ops st_tz_ops = {
 	.get_temp	= st_thermal_get_temp,
-	.get_trip_type	= st_thermal_get_trip_type,
-	.get_trip_temp	= st_thermal_get_trip_temp,
 };
 
+static struct thermal_trip trip;
+
 int st_thermal_register(struct platform_device *pdev,
 			const struct of_device_id *st_thermal_of_match)
 {
@@ -238,9 +202,12 @@ int st_thermal_register(struct platform_device *pdev,
 
 	polling_delay = sensor->ops->register_enable_irq ? 0 : 1000;
 
+	trip.temperature = sensor->cdata->crit_temp;
+	trip.type = THERMAL_TRIP_CRITICAL;
+
 	sensor->thermal_dev =
-		thermal_zone_device_register(dev_name(dev), 1, 0, sensor,
-					     &st_tz_ops, NULL, 0, polling_delay);
+		thermal_zone_device_register_with_trips(dev_name(dev), &trip, 1, 0, sensor,
+							&st_tz_ops, NULL, 0, polling_delay);
 	if (IS_ERR(sensor->thermal_dev)) {
 		dev_err(dev, "failed to register thermal zone device\n");
 		ret = PTR_ERR(sensor->thermal_dev);

From 30233a229fdbca747896e279f88df8e66ef44a4e Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:54 +0200
Subject: [PATCH 21/37] thermal/drivers/imx: Use generic
 thermal_zone_get_trip() function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-22-daniel.lezcano@linaro.org
---
 drivers/thermal/imx_thermal.c | 72 +++++++++++++----------------------
 1 file changed, 27 insertions(+), 45 deletions(-)

diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index 16663373b682..fb0d5cab70af 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -76,7 +76,6 @@
 enum imx_thermal_trip {
 	IMX_TRIP_PASSIVE,
 	IMX_TRIP_CRITICAL,
-	IMX_TRIP_NUM,
 };
 
 #define IMX_POLLING_DELAY		2000 /* millisecond */
@@ -115,6 +114,11 @@ struct thermal_soc_data {
 	u32 low_alarm_shift;
 };
 
+static struct thermal_trip trips[] = {
+	[IMX_TRIP_PASSIVE]  = { .type = THERMAL_TRIP_PASSIVE  },
+	[IMX_TRIP_CRITICAL] = { .type = THERMAL_TRIP_CRITICAL },
+};
+
 static struct thermal_soc_data thermal_imx6q_data = {
 	.version = TEMPMON_IMX6Q,
 
@@ -201,8 +205,6 @@ struct imx_thermal_data {
 	struct thermal_cooling_device *cdev;
 	struct regmap *tempmon;
 	u32 c1, c2; /* See formula in imx_init_calib() */
-	int temp_passive;
-	int temp_critical;
 	int temp_max;
 	int alarm_temp;
 	int last_temp;
@@ -279,12 +281,12 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
 
 	/* Update alarm value to next higher trip point for TEMPMON_IMX6Q */
 	if (data->socdata->version == TEMPMON_IMX6Q) {
-		if (data->alarm_temp == data->temp_passive &&
-			*temp >= data->temp_passive)
-			imx_set_alarm_temp(data, data->temp_critical);
-		if (data->alarm_temp == data->temp_critical &&
-			*temp < data->temp_passive) {
-			imx_set_alarm_temp(data, data->temp_passive);
+		if (data->alarm_temp == trips[IMX_TRIP_PASSIVE].temperature &&
+			*temp >= trips[IMX_TRIP_PASSIVE].temperature)
+			imx_set_alarm_temp(data, trips[IMX_TRIP_CRITICAL].temperature);
+		if (data->alarm_temp == trips[IMX_TRIP_CRITICAL].temperature &&
+			*temp < trips[IMX_TRIP_PASSIVE].temperature) {
+			imx_set_alarm_temp(data, trips[IMX_TRIP_PASSIVE].temperature);
 			dev_dbg(&tz->device, "thermal alarm off: T < %d\n",
 				data->alarm_temp / 1000);
 		}
@@ -330,29 +332,10 @@ static int imx_change_mode(struct thermal_zone_device *tz,
 	return 0;
 }
 
-static int imx_get_trip_type(struct thermal_zone_device *tz, int trip,
-			     enum thermal_trip_type *type)
-{
-	*type = (trip == IMX_TRIP_PASSIVE) ? THERMAL_TRIP_PASSIVE :
-					     THERMAL_TRIP_CRITICAL;
-	return 0;
-}
-
 static int imx_get_crit_temp(struct thermal_zone_device *tz, int *temp)
 {
-	struct imx_thermal_data *data = tz->devdata;
+	*temp = trips[IMX_TRIP_CRITICAL].temperature;
 
-	*temp = data->temp_critical;
-	return 0;
-}
-
-static int imx_get_trip_temp(struct thermal_zone_device *tz, int trip,
-			     int *temp)
-{
-	struct imx_thermal_data *data = tz->devdata;
-
-	*temp = (trip == IMX_TRIP_PASSIVE) ? data->temp_passive :
-					     data->temp_critical;
 	return 0;
 }
 
@@ -371,10 +354,10 @@ static int imx_set_trip_temp(struct thermal_zone_device *tz, int trip,
 		return -EPERM;
 
 	/* do not allow passive to be set higher than critical */
-	if (temp < 0 || temp > data->temp_critical)
+	if (temp < 0 || temp > trips[IMX_TRIP_CRITICAL].temperature)
 		return -EINVAL;
 
-	data->temp_passive = temp;
+	trips[IMX_TRIP_PASSIVE].temperature = temp;
 
 	imx_set_alarm_temp(data, temp);
 
@@ -423,8 +406,6 @@ static struct thermal_zone_device_ops imx_tz_ops = {
 	.unbind = imx_unbind,
 	.get_temp = imx_get_temp,
 	.change_mode = imx_change_mode,
-	.get_trip_type = imx_get_trip_type,
-	.get_trip_temp = imx_get_trip_temp,
 	.get_crit_temp = imx_get_crit_temp,
 	.set_trip_temp = imx_set_trip_temp,
 };
@@ -507,8 +488,8 @@ static void imx_init_temp_grade(struct platform_device *pdev, u32 ocotp_mem0)
 	 * Set the critical trip point at 5 °C under max
 	 * Set the passive trip point at 10 °C under max (changeable via sysfs)
 	 */
-	data->temp_critical = data->temp_max - (1000 * 5);
-	data->temp_passive = data->temp_max - (1000 * 10);
+	trips[IMX_TRIP_PASSIVE].temperature = data->temp_max - (1000 * 10);
+	trips[IMX_TRIP_CRITICAL].temperature = data->temp_max - (1000 * 5);
 }
 
 static int imx_init_from_tempmon_data(struct platform_device *pdev)
@@ -743,12 +724,13 @@ static int imx_thermal_probe(struct platform_device *pdev)
 		goto legacy_cleanup;
 	}
 
-	data->tz = thermal_zone_device_register("imx_thermal_zone",
-						IMX_TRIP_NUM,
-						BIT(IMX_TRIP_PASSIVE), data,
-						&imx_tz_ops, NULL,
-						IMX_PASSIVE_DELAY,
-						IMX_POLLING_DELAY);
+	data->tz = thermal_zone_device_register_with_trips("imx_thermal_zone",
+							   trips,
+							   ARRAY_SIZE(trips),
+							   BIT(IMX_TRIP_PASSIVE), data,
+							   &imx_tz_ops, NULL,
+							   IMX_PASSIVE_DELAY,
+							   IMX_POLLING_DELAY);
 	if (IS_ERR(data->tz)) {
 		ret = PTR_ERR(data->tz);
 		dev_err(&pdev->dev,
@@ -758,8 +740,8 @@ static int imx_thermal_probe(struct platform_device *pdev)
 
 	dev_info(&pdev->dev, "%s CPU temperature grade - max:%dC"
 		 " critical:%dC passive:%dC\n", data->temp_grade,
-		 data->temp_max / 1000, data->temp_critical / 1000,
-		 data->temp_passive / 1000);
+		 data->temp_max / 1000, trips[IMX_TRIP_CRITICAL].temperature / 1000,
+		 trips[IMX_TRIP_PASSIVE].temperature / 1000);
 
 	/* Enable measurements at ~ 10 Hz */
 	regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR,
@@ -767,10 +749,10 @@ static int imx_thermal_probe(struct platform_device *pdev)
 	measure_freq = DIV_ROUND_UP(32768, 10); /* 10 Hz */
 	regmap_write(map, data->socdata->measure_freq_ctrl + REG_SET,
 		     measure_freq << data->socdata->measure_freq_shift);
-	imx_set_alarm_temp(data, data->temp_passive);
+	imx_set_alarm_temp(data, trips[IMX_TRIP_PASSIVE].temperature);
 
 	if (data->socdata->version == TEMPMON_IMX6SX)
-		imx_set_panic_temp(data, data->temp_critical);
+		imx_set_panic_temp(data, trips[IMX_TRIP_CRITICAL].temperature);
 
 	regmap_write(map, data->socdata->sensor_ctrl + REG_CLR,
 		     data->socdata->power_down_mask);

From 0b6a3e459e1e615cb2d8c2e33b63e9589ec17850 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:55 +0200
Subject: [PATCH 22/37] thermal/drivers/rcar: Use generic
 thermal_zone_get_trip() function
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20221003092602.1323944-23-daniel.lezcano@linaro.org
---
 drivers/thermal/rcar_thermal.c | 53 ++++------------------------------
 1 file changed, 6 insertions(+), 47 deletions(-)

diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 61c2b8855cb8..436f5f9cf729 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -278,52 +278,12 @@ static int rcar_thermal_get_temp(struct thermal_zone_device *zone, int *temp)
 	return rcar_thermal_get_current_temp(priv, temp);
 }
 
-static int rcar_thermal_get_trip_type(struct thermal_zone_device *zone,
-				      int trip, enum thermal_trip_type *type)
-{
-	struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
-	struct device *dev = rcar_priv_to_dev(priv);
-
-	/* see rcar_thermal_get_temp() */
-	switch (trip) {
-	case 0: /* +90 <= temp */
-		*type = THERMAL_TRIP_CRITICAL;
-		break;
-	default:
-		dev_err(dev, "rcar driver trip error\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int rcar_thermal_get_trip_temp(struct thermal_zone_device *zone,
-				      int trip, int *temp)
-{
-	struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
-	struct device *dev = rcar_priv_to_dev(priv);
-
-	/* see rcar_thermal_get_temp() */
-	switch (trip) {
-	case 0: /* +90 <= temp */
-		*temp = MCELSIUS(90);
-		break;
-	default:
-		dev_err(dev, "rcar driver trip error\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static const struct thermal_zone_device_ops rcar_thermal_zone_of_ops = {
+static struct thermal_zone_device_ops rcar_thermal_zone_ops = {
 	.get_temp	= rcar_thermal_get_temp,
 };
 
-static struct thermal_zone_device_ops rcar_thermal_zone_ops = {
-	.get_temp	= rcar_thermal_get_temp,
-	.get_trip_type	= rcar_thermal_get_trip_type,
-	.get_trip_temp	= rcar_thermal_get_trip_temp,
+static struct thermal_trip trips[] = {
+	{ .type = THERMAL_TRIP_CRITICAL, .temperature = 90000 }
 };
 
 /*
@@ -529,11 +489,10 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 		if (chip->use_of_thermal) {
 			priv->zone = devm_thermal_of_zone_register(
 						dev, i, priv,
-						&rcar_thermal_zone_of_ops);
+						&rcar_thermal_zone_ops);
 		} else {
-			priv->zone = thermal_zone_device_register(
-						"rcar_thermal",
-						1, 0, priv,
+			priv->zone = thermal_zone_device_register_with_trips(
+				"rcar_thermal", trips, ARRAY_SIZE(trips), 0, priv,
 						&rcar_thermal_zone_ops, NULL, 0,
 						idle);
 

From 52945c1c65fbc437a94eb0006561e7ff640cd8a8 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:56 +0200
Subject: [PATCH 23/37] thermal/drivers/broadcom: Use generic
 thermal_zone_get_trip() function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221003092602.1323944-24-daniel.lezcano@linaro.org
---
 drivers/thermal/broadcom/bcm2835_thermal.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/broadcom/bcm2835_thermal.c b/drivers/thermal/broadcom/bcm2835_thermal.c
index 2c67841a1115..5485e59d03a9 100644
--- a/drivers/thermal/broadcom/bcm2835_thermal.c
+++ b/drivers/thermal/broadcom/bcm2835_thermal.c
@@ -18,6 +18,7 @@
 #include <linux/platform_device.h>
 #include <linux/thermal.h>
 
+#include "../thermal_core.h"
 #include "../thermal_hwmon.h"
 
 #define BCM2835_TS_TSENSCTL			0x00
@@ -224,7 +225,8 @@ static int bcm2835_thermal_probe(struct platform_device *pdev)
 	 */
 	val = readl(data->regs + BCM2835_TS_TSENSCTL);
 	if (!(val & BCM2835_TS_TSENSCTL_RSTB)) {
-		int trip_temp, offset, slope;
+		struct thermal_trip trip;
+		int offset, slope;
 
 		slope = thermal_zone_get_slope(tz);
 		offset = thermal_zone_get_offset(tz);
@@ -232,7 +234,7 @@ static int bcm2835_thermal_probe(struct platform_device *pdev)
 		 * For now we deal only with critical, otherwise
 		 * would need to iterate
 		 */
-		err = tz->ops->get_trip_temp(tz, 0, &trip_temp);
+		err = thermal_zone_get_trip(tz, 0, &trip);
 		if (err < 0) {
 			dev_err(&pdev->dev,
 				"Not able to read trip_temp: %d\n",
@@ -249,7 +251,7 @@ static int bcm2835_thermal_probe(struct platform_device *pdev)
 		val |= (0xFE << BCM2835_TS_TSENSCTL_RSTDELAY_SHIFT);
 
 		/*  trip_adc value from info */
-		val |= bcm2835_thermal_temp2adc(trip_temp,
+		val |= bcm2835_thermal_temp2adc(trip.temperature,
 						offset,
 						slope)
 			<< BCM2835_TS_TSENSCTL_THOLD_SHIFT;

From 060b39d934f219386478f892879231bf262f02ca Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:57 +0200
Subject: [PATCH 24/37] thermal/drivers/da9062: Use generic
 thermal_zone_get_trip() function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Adam Ward <DLG-Adam.Ward.opensource@dm.renesas.com>
Link: https://lore.kernel.org/r/20221003092602.1323944-25-daniel.lezcano@linaro.org
---
 drivers/thermal/da9062-thermal.c | 52 +++++---------------------------
 1 file changed, 8 insertions(+), 44 deletions(-)

diff --git a/drivers/thermal/da9062-thermal.c b/drivers/thermal/da9062-thermal.c
index 7dcfde7a9f2c..a805a6666c44 100644
--- a/drivers/thermal/da9062-thermal.c
+++ b/drivers/thermal/da9062-thermal.c
@@ -120,44 +120,6 @@ static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static int da9062_thermal_get_trip_type(struct thermal_zone_device *z,
-					int trip,
-					enum thermal_trip_type *type)
-{
-	struct da9062_thermal *thermal = z->devdata;
-
-	switch (trip) {
-	case 0:
-		*type = THERMAL_TRIP_HOT;
-		break;
-	default:
-		dev_err(thermal->dev,
-			"Driver does not support more than 1 trip-wire\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int da9062_thermal_get_trip_temp(struct thermal_zone_device *z,
-					int trip,
-					int *temp)
-{
-	struct da9062_thermal *thermal = z->devdata;
-
-	switch (trip) {
-	case 0:
-		*temp = DA9062_MILLI_CELSIUS(125);
-		break;
-	default:
-		dev_err(thermal->dev,
-			"Driver does not support more than 1 trip-wire\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
 static int da9062_thermal_get_temp(struct thermal_zone_device *z,
 				   int *temp)
 {
@@ -172,8 +134,10 @@ static int da9062_thermal_get_temp(struct thermal_zone_device *z,
 
 static struct thermal_zone_device_ops da9062_thermal_ops = {
 	.get_temp	= da9062_thermal_get_temp,
-	.get_trip_type	= da9062_thermal_get_trip_type,
-	.get_trip_temp	= da9062_thermal_get_trip_temp,
+};
+
+static struct thermal_trip trips[] = {
+	{ .temperature = DA9062_MILLI_CELSIUS(125), .type = THERMAL_TRIP_HOT },
 };
 
 static const struct da9062_thermal_config da9062_config = {
@@ -228,10 +192,10 @@ static int da9062_thermal_probe(struct platform_device *pdev)
 	INIT_DELAYED_WORK(&thermal->work, da9062_thermal_poll_on);
 	mutex_init(&thermal->lock);
 
-	thermal->zone = thermal_zone_device_register(thermal->config->name,
-					1, 0, thermal,
-					&da9062_thermal_ops, NULL, pp_tmp,
-					0);
+	thermal->zone = thermal_zone_device_register_with_trips(thermal->config->name,
+								trips, ARRAY_SIZE(trips), 0, thermal,
+								&da9062_thermal_ops, NULL, pp_tmp,
+								0);
 	if (IS_ERR(thermal->zone)) {
 		dev_err(&pdev->dev, "Cannot register thermal zone device\n");
 		ret = PTR_ERR(thermal->zone);

From 69cf4eaa681654605778262c0624274a454264a6 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:58 +0200
Subject: [PATCH 25/37] thermal/drivers/ti: Remove unused macros
 ti_thermal_get_trip_value() / ti_thermal_trip_is_valid()

The macros:

ti_thermal_get_trip_value()
 ti_thermal_trip_is_valid()

are unused. Remove them.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-26-daniel.lezcano@linaro.org
---
 drivers/thermal/ti-soc-thermal/ti-thermal.h | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal.h b/drivers/thermal/ti-soc-thermal/ti-thermal.h
index c388ecf31834..4fd2c20182d7 100644
--- a/drivers/thermal/ti-soc-thermal/ti-thermal.h
+++ b/drivers/thermal/ti-soc-thermal/ti-thermal.h
@@ -38,21 +38,6 @@
 /* Update rates */
 #define FAST_TEMP_MONITORING_RATE				250
 
-/* helper macros */
-/**
- * ti_thermal_get_trip_value - returns trip temperature based on index
- * @i:	trip index
- */
-#define ti_thermal_get_trip_value(i)					\
-	(OMAP_TRIP_HOT + ((i) * OMAP_TRIP_STEP))
-
-/**
- * ti_thermal_is_valid_trip - check for trip index
- * @i:	trip index
- */
-#define ti_thermal_is_valid_trip(trip)				\
-	((trip) >= 0 && (trip) < OMAP_TRIP_NUMBER)
-
 #ifdef CONFIG_TI_THERMAL
 int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain);
 int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id);

From a1ebf2cd506baaf3e5ff04f79912dc4509f41fa9 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:25:59 +0200
Subject: [PATCH 26/37] thermal/drivers/acerhdf: Use generic
 thermal_zone_get_trip() function
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Peter Kästle <peter@piie.net>
Link: https://lore.kernel.org/r/20221003092602.1323944-27-daniel.lezcano@linaro.org
---
 drivers/platform/x86/acerhdf.c | 73 ++++++++++++----------------------
 1 file changed, 26 insertions(+), 47 deletions(-)

diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index d2c0fc38c201..1956469c3457 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -46,6 +46,8 @@
  * measured by the on-die thermal monitor are within 0 <= Tj <= 90. So,
  * assume 89°C is critical temperature.
  */
+#define ACERHDF_DEFAULT_TEMP_FANON 60000
+#define ACERHDF_DEFAULT_TEMP_FANOFF 53000
 #define ACERHDF_TEMP_CRIT 89000
 #define ACERHDF_FAN_OFF 0
 #define ACERHDF_FAN_AUTO 1
@@ -70,8 +72,8 @@ static int kernelmode;
 #endif
 
 static unsigned int interval = 10;
-static unsigned int fanon = 60000;
-static unsigned int fanoff = 53000;
+static unsigned int fanon = ACERHDF_DEFAULT_TEMP_FANON;
+static unsigned int fanoff = ACERHDF_DEFAULT_TEMP_FANOFF;
 static unsigned int verbose;
 static unsigned int list_supported;
 static unsigned int fanstate = ACERHDF_FAN_AUTO;
@@ -137,6 +139,15 @@ struct ctrl_settings {
 	int mcmd_enable;
 };
 
+static struct thermal_trip trips[] = {
+	[0] = { .temperature = ACERHDF_DEFAULT_TEMP_FANON,
+		.hysteresis = ACERHDF_DEFAULT_TEMP_FANON - ACERHDF_DEFAULT_TEMP_FANOFF,
+		.type = THERMAL_TRIP_ACTIVE },
+
+	[1] = { .temperature = ACERHDF_TEMP_CRIT,
+		.type = THERMAL_TRIP_CRITICAL }
+};
+
 static struct ctrl_settings ctrl_cfg __read_mostly;
 
 /* Register addresses and values for different BIOS versions */
@@ -326,6 +337,15 @@ static void acerhdf_check_param(struct thermal_zone_device *thermal)
 		fanon = ACERHDF_MAX_FANON;
 	}
 
+	if (fanon < fanoff) {
+		pr_err("fanoff temperature (%d) is above fanon temperature (%d), clamping to %d\n",
+		       fanoff, fanon, fanon);
+		fanoff = fanon;
+	};
+
+	trips[0].temperature = fanon;
+	trips[0].hysteresis  = fanon - fanoff;
+
 	if (kernelmode && prev_interval != interval) {
 		if (interval > ACERHDF_MAX_INTERVAL) {
 			pr_err("interval too high, set to %d\n",
@@ -424,43 +444,6 @@ static int acerhdf_change_mode(struct thermal_zone_device *thermal,
 	return 0;
 }
 
-static int acerhdf_get_trip_type(struct thermal_zone_device *thermal, int trip,
-				 enum thermal_trip_type *type)
-{
-	if (trip == 0)
-		*type = THERMAL_TRIP_ACTIVE;
-	else if (trip == 1)
-		*type = THERMAL_TRIP_CRITICAL;
-	else
-		return -EINVAL;
-
-	return 0;
-}
-
-static int acerhdf_get_trip_hyst(struct thermal_zone_device *thermal, int trip,
-				 int *temp)
-{
-	if (trip != 0)
-		return -EINVAL;
-
-	*temp = fanon - fanoff;
-
-	return 0;
-}
-
-static int acerhdf_get_trip_temp(struct thermal_zone_device *thermal, int trip,
-				 int *temp)
-{
-	if (trip == 0)
-		*temp = fanon;
-	else if (trip == 1)
-		*temp = ACERHDF_TEMP_CRIT;
-	else
-		return -EINVAL;
-
-	return 0;
-}
-
 static int acerhdf_get_crit_temp(struct thermal_zone_device *thermal,
 				 int *temperature)
 {
@@ -474,13 +457,9 @@ static struct thermal_zone_device_ops acerhdf_dev_ops = {
 	.unbind = acerhdf_unbind,
 	.get_temp = acerhdf_get_ec_temp,
 	.change_mode = acerhdf_change_mode,
-	.get_trip_type = acerhdf_get_trip_type,
-	.get_trip_hyst = acerhdf_get_trip_hyst,
-	.get_trip_temp = acerhdf_get_trip_temp,
 	.get_crit_temp = acerhdf_get_crit_temp,
 };
 
-
 /*
  * cooling device callback functions
  * get maximal fan cooling state
@@ -710,10 +689,10 @@ static int __init acerhdf_register_thermal(void)
 	if (IS_ERR(cl_dev))
 		return -EINVAL;
 
-	thz_dev = thermal_zone_device_register("acerhdf", 2, 0, NULL,
-					      &acerhdf_dev_ops,
-					      &acerhdf_zone_params, 0,
-					      (kernelmode) ? interval*1000 : 0);
+	thz_dev = thermal_zone_device_register_with_trips("acerhdf", trips, ARRAY_SIZE(trips),
+							  0, NULL, &acerhdf_dev_ops,
+							  &acerhdf_zone_params, 0,
+							  (kernelmode) ? interval*1000 : 0);
 	if (IS_ERR(thz_dev))
 		return -EINVAL;
 

From 9ddcb8098d1a517b03c9d49aeb278919e81ddda9 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:26:00 +0200
Subject: [PATCH 27/37] thermal/drivers/cxgb4: Use generic
 thermal_zone_get_trip() function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20221003092602.1323944-28-daniel.lezcano@linaro.org
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4.h    |  2 -
 .../ethernet/chelsio/cxgb4/cxgb4_thermal.c    | 39 ++++---------------
 2 files changed, 7 insertions(+), 34 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 5657ac8cfca0..fca9533bc011 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -1079,8 +1079,6 @@ struct mbox_list {
 #if IS_ENABLED(CONFIG_THERMAL)
 struct ch_thermal {
 	struct thermal_zone_device *tzdev;
-	int trip_temp;
-	int trip_type;
 };
 #endif
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c
index 9a6d65243334..95e1b415ba13 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_thermal.c
@@ -29,36 +29,12 @@ static int cxgb4_thermal_get_temp(struct thermal_zone_device *tzdev,
 	return 0;
 }
 
-static int cxgb4_thermal_get_trip_type(struct thermal_zone_device *tzdev,
-				       int trip, enum thermal_trip_type *type)
-{
-	struct adapter *adap = tzdev->devdata;
-
-	if (!adap->ch_thermal.trip_temp)
-		return -EINVAL;
-
-	*type = adap->ch_thermal.trip_type;
-	return 0;
-}
-
-static int cxgb4_thermal_get_trip_temp(struct thermal_zone_device *tzdev,
-				       int trip, int *temp)
-{
-	struct adapter *adap = tzdev->devdata;
-
-	if (!adap->ch_thermal.trip_temp)
-		return -EINVAL;
-
-	*temp = adap->ch_thermal.trip_temp;
-	return 0;
-}
-
 static struct thermal_zone_device_ops cxgb4_thermal_ops = {
 	.get_temp = cxgb4_thermal_get_temp,
-	.get_trip_type = cxgb4_thermal_get_trip_type,
-	.get_trip_temp = cxgb4_thermal_get_trip_temp,
 };
 
+static struct thermal_trip trip = { .type = THERMAL_TRIP_CRITICAL } ;
+
 int cxgb4_thermal_init(struct adapter *adap)
 {
 	struct ch_thermal *ch_thermal = &adap->ch_thermal;
@@ -79,15 +55,14 @@ int cxgb4_thermal_init(struct adapter *adap)
 	if (ret < 0) {
 		num_trip = 0; /* could not get trip temperature */
 	} else {
-		ch_thermal->trip_temp = val * 1000;
-		ch_thermal->trip_type = THERMAL_TRIP_CRITICAL;
+		trip.temperature = val * 1000;
 	}
 
 	snprintf(ch_tz_name, sizeof(ch_tz_name), "cxgb4_%s", adap->name);
-	ch_thermal->tzdev = thermal_zone_device_register(ch_tz_name, num_trip,
-							 0, adap,
-							 &cxgb4_thermal_ops,
-							 NULL, 0, 0);
+	ch_thermal->tzdev = thermal_zone_device_register_with_trips(ch_tz_name, &trip, num_trip,
+								    0, adap,
+								    &cxgb4_thermal_ops,
+								    NULL, 0, 0);
 	if (IS_ERR(ch_thermal->tzdev)) {
 		ret = PTR_ERR(ch_thermal->tzdev);
 		dev_err(adap->pdev_dev, "Failed to register thermal zone\n");

From 0d2d586a86e85f10bd8fe47c219024b14de280b8 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:26:01 +0200
Subject: [PATCH 28/37] thermal/intel/int340x: Replace parameter to simplify

In the process of replacing the get_trip_* ops by the generic trip
points, the current code has an 'override' property to add another
indirection to a different ops.

Rework this approach to prevent this indirection and make the code
ready for the generic trip points conversion.

Actually the get_temp() is different regarding the platform, so it is
pointless to add a new set of ops but just create dynamically the ops
at init time.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20221003092602.1323944-29-daniel.lezcano@linaro.org
---
 .../int340x_thermal/int340x_thermal_zone.c    | 33 +++++++++----------
 .../int340x_thermal/int340x_thermal_zone.h    |  4 +--
 .../processor_thermal_device.c                | 10 ++----
 3 files changed, 20 insertions(+), 27 deletions(-)

diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
index 62c0aa5d0783..228f44260b27 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
@@ -18,9 +18,6 @@ static int int340x_thermal_get_zone_temp(struct thermal_zone_device *zone,
 	unsigned long long tmp;
 	acpi_status status;
 
-	if (d->override_ops && d->override_ops->get_temp)
-		return d->override_ops->get_temp(zone, temp);
-
 	status = acpi_evaluate_integer(d->adev->handle, "_TMP", NULL, &tmp);
 	if (ACPI_FAILURE(status))
 		return -EIO;
@@ -46,9 +43,6 @@ static int int340x_thermal_get_trip_temp(struct thermal_zone_device *zone,
 	struct int34x_thermal_zone *d = zone->devdata;
 	int i;
 
-	if (d->override_ops && d->override_ops->get_trip_temp)
-		return d->override_ops->get_trip_temp(zone, trip, temp);
-
 	if (trip < d->aux_trip_nr)
 		*temp = d->aux_trips[trip];
 	else if (trip == d->crt_trip_id)
@@ -79,9 +73,6 @@ static int int340x_thermal_get_trip_type(struct thermal_zone_device *zone,
 	struct int34x_thermal_zone *d = zone->devdata;
 	int i;
 
-	if (d->override_ops && d->override_ops->get_trip_type)
-		return d->override_ops->get_trip_type(zone, trip, type);
-
 	if (trip < d->aux_trip_nr)
 		*type = THERMAL_TRIP_PASSIVE;
 	else if (trip == d->crt_trip_id)
@@ -112,9 +103,6 @@ static int int340x_thermal_set_trip_temp(struct thermal_zone_device *zone,
 	acpi_status status;
 	char name[10];
 
-	if (d->override_ops && d->override_ops->set_trip_temp)
-		return d->override_ops->set_trip_temp(zone, trip, temp);
-
 	snprintf(name, sizeof(name), "PAT%d", trip);
 	status = acpi_execute_simple_method(d->adev->handle, name,
 			millicelsius_to_deci_kelvin(temp));
@@ -134,9 +122,6 @@ static int int340x_thermal_get_trip_hyst(struct thermal_zone_device *zone,
 	acpi_status status;
 	unsigned long long hyst;
 
-	if (d->override_ops && d->override_ops->get_trip_hyst)
-		return d->override_ops->get_trip_hyst(zone, trip, temp);
-
 	status = acpi_evaluate_integer(d->adev->handle, "GTSH", NULL, &hyst);
 	if (ACPI_FAILURE(status))
 		*temp = 0;
@@ -217,7 +202,7 @@ static struct thermal_zone_params int340x_thermal_params = {
 };
 
 struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
-				struct thermal_zone_device_ops *override_ops)
+						     int (*get_temp) (struct thermal_zone_device *, int *))
 {
 	struct int34x_thermal_zone *int34x_thermal_zone;
 	acpi_status status;
@@ -231,7 +216,16 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 		return ERR_PTR(-ENOMEM);
 
 	int34x_thermal_zone->adev = adev;
-	int34x_thermal_zone->override_ops = override_ops;
+
+	int34x_thermal_zone->ops = kmemdup(&int340x_thermal_zone_ops,
+					   sizeof(int340x_thermal_zone_ops), GFP_KERNEL);
+	if (!int34x_thermal_zone->ops) {
+		ret = -ENOMEM;
+		goto err_ops_alloc;
+	}
+
+	if (get_temp)
+		int34x_thermal_zone->ops->get_temp = get_temp;
 
 	status = acpi_evaluate_integer(adev->handle, "PATC", NULL, &trip_cnt);
 	if (ACPI_FAILURE(status))
@@ -262,7 +256,7 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 						acpi_device_bid(adev),
 						trip_cnt,
 						trip_mask, int34x_thermal_zone,
-						&int340x_thermal_zone_ops,
+						int34x_thermal_zone->ops,
 						&int340x_thermal_params,
 						0, 0);
 	if (IS_ERR(int34x_thermal_zone->zone)) {
@@ -281,6 +275,8 @@ struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
 	acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);
 	kfree(int34x_thermal_zone->aux_trips);
 err_trip_alloc:
+	kfree(int34x_thermal_zone->ops);
+err_ops_alloc:
 	kfree(int34x_thermal_zone);
 	return ERR_PTR(ret);
 }
@@ -292,6 +288,7 @@ void int340x_thermal_zone_remove(struct int34x_thermal_zone
 	thermal_zone_device_unregister(int34x_thermal_zone->zone);
 	acpi_lpat_free_conversion_table(int34x_thermal_zone->lpat_table);
 	kfree(int34x_thermal_zone->aux_trips);
+	kfree(int34x_thermal_zone->ops);
 	kfree(int34x_thermal_zone);
 }
 EXPORT_SYMBOL_GPL(int340x_thermal_zone_remove);
diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
index 3b4971df1b33..e28ab1ba5e06 100644
--- a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.h
@@ -29,13 +29,13 @@ struct int34x_thermal_zone {
 	int hot_temp;
 	int hot_trip_id;
 	struct thermal_zone_device *zone;
-	struct thermal_zone_device_ops *override_ops;
+	struct thermal_zone_device_ops *ops;
 	void *priv_data;
 	struct acpi_lpat_conversion_table *lpat_table;
 };
 
 struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *,
-				struct thermal_zone_device_ops *override_ops);
+				int (*get_temp) (struct thermal_zone_device *, int *));
 void int340x_thermal_zone_remove(struct int34x_thermal_zone *);
 int int340x_thermal_read_trips(struct int34x_thermal_zone *int34x_zone);
 
diff --git a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
index a8d98f1bd6c6..317703027ce9 100644
--- a/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
+++ b/drivers/thermal/intel/int340x_thermal/processor_thermal_device.c
@@ -207,10 +207,6 @@ static int proc_thermal_get_zone_temp(struct thermal_zone_device *zone,
 	return ret;
 }
 
-static struct thermal_zone_device_ops proc_thermal_local_ops = {
-	.get_temp       = proc_thermal_get_zone_temp,
-};
-
 static int proc_thermal_read_ppcc(struct proc_thermal_device *proc_priv)
 {
 	int i;
@@ -285,7 +281,7 @@ int proc_thermal_add(struct device *dev, struct proc_thermal_device *proc_priv)
 	struct acpi_device *adev;
 	acpi_status status;
 	unsigned long long tmp;
-	struct thermal_zone_device_ops *ops = NULL;
+	int (*get_temp) (struct thermal_zone_device *, int *) = NULL;
 	int ret;
 
 	adev = ACPI_COMPANION(dev);
@@ -304,10 +300,10 @@ int proc_thermal_add(struct device *dev, struct proc_thermal_device *proc_priv)
 		/* there is no _TMP method, add local method */
 		stored_tjmax = get_tjmax();
 		if (stored_tjmax > 0)
-			ops = &proc_thermal_local_ops;
+			get_temp = proc_thermal_get_zone_temp;
 	}
 
-	proc_priv->int340x_zone = int340x_thermal_zone_add(adev, ops);
+	proc_priv->int340x_zone = int340x_thermal_zone_add(adev, get_temp);
 	if (IS_ERR(proc_priv->int340x_zone)) {
 		return PTR_ERR(proc_priv->int340x_zone);
 	} else

From d3ecaf17b58607c240392e810a743fbb9e1e8262 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 11:26:02 +0200
Subject: [PATCH 29/37] thermal/drivers/intel: Use generic
 thermal_zone_get_trip() function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20221003092602.1323944-30-daniel.lezcano@linaro.org
---
 drivers/thermal/intel/x86_pkg_temp_thermal.c | 120 +++++++++++--------
 1 file changed, 67 insertions(+), 53 deletions(-)

diff --git a/drivers/thermal/intel/x86_pkg_temp_thermal.c b/drivers/thermal/intel/x86_pkg_temp_thermal.c
index 84c3a116ed04..494f25250c2d 100644
--- a/drivers/thermal/intel/x86_pkg_temp_thermal.c
+++ b/drivers/thermal/intel/x86_pkg_temp_thermal.c
@@ -53,6 +53,7 @@ struct zone_device {
 	u32				msr_pkg_therm_high;
 	struct delayed_work		work;
 	struct thermal_zone_device	*tzone;
+	struct thermal_trip		*trips;
 	struct cpumask			cpumask;
 };
 
@@ -138,40 +139,6 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd, int *temp)
 	return -EINVAL;
 }
 
-static int sys_get_trip_temp(struct thermal_zone_device *tzd,
-			     int trip, int *temp)
-{
-	struct zone_device *zonedev = tzd->devdata;
-	unsigned long thres_reg_value;
-	u32 mask, shift, eax, edx;
-	int ret;
-
-	if (trip >= MAX_NUMBER_OF_TRIPS)
-		return -EINVAL;
-
-	if (trip) {
-		mask = THERM_MASK_THRESHOLD1;
-		shift = THERM_SHIFT_THRESHOLD1;
-	} else {
-		mask = THERM_MASK_THRESHOLD0;
-		shift = THERM_SHIFT_THRESHOLD0;
-	}
-
-	ret = rdmsr_on_cpu(zonedev->cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT,
-			   &eax, &edx);
-	if (ret < 0)
-		return ret;
-
-	thres_reg_value = (eax & mask) >> shift;
-	if (thres_reg_value)
-		*temp = zonedev->tj_max - thres_reg_value * 1000;
-	else
-		*temp = THERMAL_TEMP_INVALID;
-	pr_debug("sys_get_trip_temp %d\n", *temp);
-
-	return 0;
-}
-
 static int
 sys_set_trip_temp(struct thermal_zone_device *tzd, int trip, int temp)
 {
@@ -212,18 +179,9 @@ sys_set_trip_temp(struct thermal_zone_device *tzd, int trip, int temp)
 			l, h);
 }
 
-static int sys_get_trip_type(struct thermal_zone_device *thermal, int trip,
-			     enum thermal_trip_type *type)
-{
-	*type = THERMAL_TRIP_PASSIVE;
-	return 0;
-}
-
 /* Thermal zone callback registry */
 static struct thermal_zone_device_ops tzone_ops = {
 	.get_temp = sys_get_curr_temp,
-	.get_trip_temp = sys_get_trip_temp,
-	.get_trip_type = sys_get_trip_type,
 	.set_trip_temp = sys_set_trip_temp,
 };
 
@@ -323,6 +281,48 @@ static int pkg_thermal_notify(u64 msr_val)
 	return 0;
 }
 
+static struct thermal_trip *pkg_temp_thermal_trips_init(int cpu, int tj_max, int num_trips)
+{
+	struct thermal_trip *trips;
+	unsigned long thres_reg_value;
+	u32 mask, shift, eax, edx;
+	int ret, i;
+
+	trips = kzalloc(sizeof(*trips) * num_trips, GFP_KERNEL);
+	if (!trips)
+		return ERR_PTR(-ENOMEM);
+
+	for (i = 0; i < num_trips; i++) {
+
+		if (i) {
+			mask = THERM_MASK_THRESHOLD1;
+			shift = THERM_SHIFT_THRESHOLD1;
+		} else {
+			mask = THERM_MASK_THRESHOLD0;
+			shift = THERM_SHIFT_THRESHOLD0;
+		}
+
+		ret = rdmsr_on_cpu(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT,
+				   &eax, &edx);
+		if (ret < 0) {
+			kfree(trips);
+			return ERR_PTR(ret);
+		}
+
+		thres_reg_value = (eax & mask) >> shift;
+
+		trips[i].temperature = thres_reg_value ?
+			tj_max - thres_reg_value * 1000 : THERMAL_TEMP_INVALID;
+
+		trips[i].type = THERMAL_TRIP_PASSIVE;
+
+		pr_debug("%s: cpu=%d, trip=%d, temp=%d\n",
+			 __func__, cpu, i, trips[i].temperature);
+	}
+
+	return trips;
+}
+
 static int pkg_temp_thermal_device_add(unsigned int cpu)
 {
 	int id = topology_logical_die_id(cpu);
@@ -348,24 +348,27 @@ static int pkg_temp_thermal_device_add(unsigned int cpu)
 	if (!zonedev)
 		return -ENOMEM;
 
+	zonedev->trips = pkg_temp_thermal_trips_init(cpu, tj_max, thres_count);
+	if (IS_ERR(zonedev->trips)) {
+		err = PTR_ERR(zonedev->trips);
+		goto out_kfree_zonedev;
+	}
+
 	INIT_DELAYED_WORK(&zonedev->work, pkg_temp_thermal_threshold_work_fn);
 	zonedev->cpu = cpu;
 	zonedev->tj_max = tj_max;
-	zonedev->tzone = thermal_zone_device_register("x86_pkg_temp",
-			thres_count,
+	zonedev->tzone = thermal_zone_device_register_with_trips("x86_pkg_temp",
+			zonedev->trips, thres_count,
 			(thres_count == MAX_NUMBER_OF_TRIPS) ? 0x03 : 0x01,
 			zonedev, &tzone_ops, &pkg_temp_tz_params, 0, 0);
 	if (IS_ERR(zonedev->tzone)) {
 		err = PTR_ERR(zonedev->tzone);
-		kfree(zonedev);
-		return err;
+		goto out_kfree_trips;
 	}
 	err = thermal_zone_device_enable(zonedev->tzone);
-	if (err) {
-		thermal_zone_device_unregister(zonedev->tzone);
-		kfree(zonedev);
-		return err;
-	}
+	if (err)
+		goto out_unregister_tz;
+
 	/* Store MSR value for package thermal interrupt, to restore at exit */
 	rdmsr(MSR_IA32_PACKAGE_THERM_INTERRUPT, zonedev->msr_pkg_therm_low,
 	      zonedev->msr_pkg_therm_high);
@@ -374,7 +377,16 @@ static int pkg_temp_thermal_device_add(unsigned int cpu)
 	raw_spin_lock_irq(&pkg_temp_lock);
 	zones[id] = zonedev;
 	raw_spin_unlock_irq(&pkg_temp_lock);
+
 	return 0;
+
+out_unregister_tz:
+	thermal_zone_device_unregister(zonedev->tzone);
+out_kfree_trips:
+	kfree(zonedev->trips);
+out_kfree_zonedev:
+	kfree(zonedev);
+	return err;
 }
 
 static int pkg_thermal_cpu_offline(unsigned int cpu)
@@ -458,8 +470,10 @@ static int pkg_thermal_cpu_offline(unsigned int cpu)
 	raw_spin_unlock_irq(&pkg_temp_lock);
 
 	/* Final cleanup if this is the last cpu */
-	if (lastcpu)
+	if (lastcpu) {
+		kfree(zonedev->trips);
 		kfree(zonedev);
+	}
 	return 0;
 }
 

From a1c306375b0638f37996bbda1e3a75c6f108a097 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 3 Oct 2022 15:29:43 +0200
Subject: [PATCH 30/37] thermal/drivers/exynos: Fix NULL pointer dereference
 when getting the critical temp

The driver is assuming the get_critical temperature exists as it is
inherited by the thermal of ops. But this one has been removed in
favor of the generic one.

Use the generic thermal_zone_get_crit_temp() function instead

Fixes: 13bea86623be ("thermal/of: Remove of_thermal_get_crit_temp(")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/thermal/samsung/exynos_tmu.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 5a1ffe2f3134..37465af59262 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -264,9 +264,8 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
 	unsigned int status;
 	int ret = 0, temp;
 
-	if (data->soc != SOC_ARCH_EXYNOS5433) /* FIXME */
-		ret = tzd->ops->get_crit_temp(tzd, &temp);
-	if (ret) {
+	ret = thermal_zone_get_crit_temp(tzd, &temp);
+	if (ret && data->soc != SOC_ARCH_EXYNOS5433) { /* FIXME */
 		dev_err(&pdev->dev,
 			"No CRITICAL trip point defined in device tree!\n");
 		goto out;

From 5f28ecc1e909b2c3ab6ba4e9ba57c0f8dc66c30f Mon Sep 17 00:00:00 2001
From: Jon Hunter <jonathanh@nvidia.com>
Date: Mon, 10 Oct 2022 16:03:11 +0100
Subject: [PATCH 31/37] thermal/drivers/tegra: Fix crash when getting critical
 temp

Commit 13bea86623be ("thermal/of: Remove of_thermal_get_crit_temp()")
removed the function of_thermal_get_crit_temp() and this is causing a
NULL pointer deference crash when attempting to call the 'get_crit_temp'
function pointer because this function pointer is no longer initialised.
Fix this by replacing the call to the 'get_crit_temp' function pointer
with a call to the function thermal_zone_get_crit_temp() instead.

Fixes: 13bea86623be ("thermal/of: Remove of_thermal_get_crit_temp()")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20221010150311.40384-1-jonathanh@nvidia.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/thermal/tegra/soctherm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c
index d2e454902689..4203e74e2f79 100644
--- a/drivers/thermal/tegra/soctherm.c
+++ b/drivers/thermal/tegra/soctherm.c
@@ -742,7 +742,7 @@ static int tegra_soctherm_set_hwtrips(struct device *dev,
 	/* Get thermtrips. If missing, try to get critical trips. */
 	temperature = tsensor_group_thermtrip_get(ts, sg->id);
 	if (min_low_temp == temperature)
-		if (tz->ops->get_crit_temp(tz, &temperature))
+		if (thermal_zone_get_crit_temp(tz, &temperature))
 			temperature = max_high_temp;
 
 	ret = thermtrip_program(dev, sg, temperature);

From 3d2f20ad46f83b333025f5e8e4afc34be8f13c4c Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Fri, 14 Oct 2022 09:32:50 +0200
Subject: [PATCH 32/37] wifi: iwlwifi: Use generic thermal_zone_get_trip()
 function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

The get_trip_temp, get_trip_hyst and get_trip_type are handled by the
get_trip_point().

The set_trip_temp() generic function does some checks which are no
longer needed in the set_trip_point() ops.

Convert ops content logic into generic trip points and register them
with the thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Kalle Valo <kvalo@kernel.org>
Acked-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20221014073253.3719911-1-daniel.lezcano@linaro.org
---
 drivers/net/wireless/intel/iwlwifi/mvm/mvm.h |  2 +-
 drivers/net/wireless/intel/iwlwifi/mvm/tt.c  | 71 ++++----------------
 2 files changed, 13 insertions(+), 60 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index ce6b701f3f4c..90bc95d96a78 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -501,7 +501,7 @@ struct iwl_mvm_tt_mgmt {
  * @tzone: thermal zone device data
 */
 struct iwl_mvm_thermal_device {
-	s16 temp_trips[IWL_MAX_DTS_TRIPS];
+	struct thermal_trip trips[IWL_MAX_DTS_TRIPS];
 	u8 fw_trips_index[IWL_MAX_DTS_TRIPS];
 	struct thermal_zone_device *tzone;
 };
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
index 69cf3a372759..232c200af38f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
@@ -573,11 +573,11 @@ int iwl_mvm_send_temp_report_ths_cmd(struct iwl_mvm *mvm)
 	 * and uncompressed, the FW should get it compressed and sorted
 	 */
 
-	/* compress temp_trips to cmd array, remove uninitialized values*/
+	/* compress trips to cmd array, remove uninitialized values*/
 	for (i = 0; i < IWL_MAX_DTS_TRIPS; i++) {
-		if (mvm->tz_device.temp_trips[i] != S16_MIN) {
+		if (mvm->tz_device.trips[i].temperature != INT_MIN) {
 			cmd.thresholds[idx++] =
-				cpu_to_le16(mvm->tz_device.temp_trips[i]);
+				cpu_to_le16((s16)(mvm->tz_device.trips[i].temperature / 1000));
 		}
 	}
 	cmd.num_temps = cpu_to_le32(idx);
@@ -593,8 +593,8 @@ int iwl_mvm_send_temp_report_ths_cmd(struct iwl_mvm *mvm)
 	 */
 	for (i = 0; i < idx; i++) {
 		for (j = 0; j < IWL_MAX_DTS_TRIPS; j++) {
-			if (le16_to_cpu(cmd.thresholds[i]) ==
-				mvm->tz_device.temp_trips[j])
+			if ((int)(le16_to_cpu(cmd.thresholds[i]) * 1000) ==
+			    mvm->tz_device.trips[j].temperature)
 				mvm->tz_device.fw_trips_index[i] = j;
 		}
 	}
@@ -638,37 +638,12 @@ static int iwl_mvm_tzone_get_temp(struct thermal_zone_device *device,
 	return ret;
 }
 
-static int iwl_mvm_tzone_get_trip_temp(struct thermal_zone_device *device,
-				       int trip, int *temp)
-{
-	struct iwl_mvm *mvm = (struct iwl_mvm *)device->devdata;
-
-	if (trip < 0 || trip >= IWL_MAX_DTS_TRIPS)
-		return -EINVAL;
-
-	*temp = mvm->tz_device.temp_trips[trip] * 1000;
-
-	return 0;
-}
-
-static int iwl_mvm_tzone_get_trip_type(struct thermal_zone_device *device,
-				       int trip, enum thermal_trip_type *type)
-{
-	if (trip < 0 || trip >= IWL_MAX_DTS_TRIPS)
-		return -EINVAL;
-
-	*type = THERMAL_TRIP_PASSIVE;
-
-	return 0;
-}
-
 static int iwl_mvm_tzone_set_trip_temp(struct thermal_zone_device *device,
 				       int trip, int temp)
 {
 	struct iwl_mvm *mvm = (struct iwl_mvm *)device->devdata;
 	struct iwl_mvm_thermal_device *tzone;
-	int i, ret;
-	s16 temperature;
+	int ret;
 
 	mutex_lock(&mvm->mutex);
 
@@ -678,40 +653,17 @@ static int iwl_mvm_tzone_set_trip_temp(struct thermal_zone_device *device,
 		goto out;
 	}
 
-	if (trip < 0 || trip >= IWL_MAX_DTS_TRIPS) {
-		ret = -EINVAL;
-		goto out;
-	}
-
 	if ((temp / 1000) > S16_MAX) {
 		ret = -EINVAL;
 		goto out;
 	}
 
-	temperature = (s16)(temp / 1000);
 	tzone = &mvm->tz_device;
-
 	if (!tzone) {
 		ret = -EIO;
 		goto out;
 	}
 
-	/* no updates*/
-	if (tzone->temp_trips[trip] == temperature) {
-		ret = 0;
-		goto out;
-	}
-
-	/* already existing temperature */
-	for (i = 0; i < IWL_MAX_DTS_TRIPS; i++) {
-		if (tzone->temp_trips[i] == temperature) {
-			ret = -EINVAL;
-			goto out;
-		}
-	}
-
-	tzone->temp_trips[trip] = temperature;
-
 	ret = iwl_mvm_send_temp_report_ths_cmd(mvm);
 out:
 	mutex_unlock(&mvm->mutex);
@@ -720,8 +672,6 @@ static int iwl_mvm_tzone_set_trip_temp(struct thermal_zone_device *device,
 
 static  struct thermal_zone_device_ops tzone_ops = {
 	.get_temp = iwl_mvm_tzone_get_temp,
-	.get_trip_temp = iwl_mvm_tzone_get_trip_temp,
-	.get_trip_type = iwl_mvm_tzone_get_trip_type,
 	.set_trip_temp = iwl_mvm_tzone_set_trip_temp,
 };
 
@@ -743,7 +693,8 @@ static void iwl_mvm_thermal_zone_register(struct iwl_mvm *mvm)
 	BUILD_BUG_ON(ARRAY_SIZE(name) >= THERMAL_NAME_LENGTH);
 
 	sprintf(name, "iwlwifi_%u", atomic_inc_return(&counter) & 0xFF);
-	mvm->tz_device.tzone = thermal_zone_device_register(name,
+	mvm->tz_device.tzone = thermal_zone_device_register_with_trips(name,
+							mvm->tz_device.trips,
 							IWL_MAX_DTS_TRIPS,
 							IWL_WRITABLE_TRIPS_MSK,
 							mvm, &tzone_ops,
@@ -766,8 +717,10 @@ static void iwl_mvm_thermal_zone_register(struct iwl_mvm *mvm)
 	/* 0 is a valid temperature,
 	 * so initialize the array with S16_MIN which invalid temperature
 	 */
-	for (i = 0 ; i < IWL_MAX_DTS_TRIPS; i++)
-		mvm->tz_device.temp_trips[i] = S16_MIN;
+	for (i = 0 ; i < IWL_MAX_DTS_TRIPS; i++) {
+		mvm->tz_device.trips[i].temperature = INT_MIN;
+		mvm->tz_device.trips[i].type = THERMAL_TRIP_PASSIVE;
+	}
 }
 
 static int iwl_mvm_tcool_get_max_state(struct thermal_cooling_device *cdev,

From 44a29a4dab73411671e0b84817a5f07e291b1501 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Fri, 14 Oct 2022 09:32:51 +0200
Subject: [PATCH 33/37] thermal/drivers/mellanox: Use generic
 thermal_zone_get_trip() function

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20221014073253.3719911-2-daniel.lezcano@linaro.org
---
 .../ethernet/mellanox/mlxsw/core_thermal.c    | 209 ++++--------------
 1 file changed, 48 insertions(+), 161 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
index 987fe5c9d5a3..c5240d38c9db 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core_thermal.c
@@ -36,33 +36,39 @@ enum mlxsw_thermal_trips {
 	MLXSW_THERMAL_TEMP_TRIP_HOT,
 };
 
-struct mlxsw_thermal_trip {
-	int	type;
-	int	temp;
-	int	hyst;
+struct mlxsw_cooling_states {
 	int	min_state;
 	int	max_state;
 };
 
-static const struct mlxsw_thermal_trip default_thermal_trips[] = {
+static const struct thermal_trip default_thermal_trips[] = {
 	{	/* In range - 0-40% PWM */
 		.type		= THERMAL_TRIP_ACTIVE,
-		.temp		= MLXSW_THERMAL_ASIC_TEMP_NORM,
-		.hyst		= MLXSW_THERMAL_HYSTERESIS_TEMP,
-		.min_state	= 0,
-		.max_state	= (4 * MLXSW_THERMAL_MAX_STATE) / 10,
+		.temperature	= MLXSW_THERMAL_ASIC_TEMP_NORM,
+		.hysteresis	= MLXSW_THERMAL_HYSTERESIS_TEMP,
 	},
 	{
 		/* In range - 40-100% PWM */
 		.type		= THERMAL_TRIP_ACTIVE,
-		.temp		= MLXSW_THERMAL_ASIC_TEMP_HIGH,
-		.hyst		= MLXSW_THERMAL_HYSTERESIS_TEMP,
-		.min_state	= (4 * MLXSW_THERMAL_MAX_STATE) / 10,
-		.max_state	= MLXSW_THERMAL_MAX_STATE,
+		.temperature	= MLXSW_THERMAL_ASIC_TEMP_HIGH,
+		.hysteresis	= MLXSW_THERMAL_HYSTERESIS_TEMP,
 	},
 	{	/* Warning */
 		.type		= THERMAL_TRIP_HOT,
-		.temp		= MLXSW_THERMAL_ASIC_TEMP_HOT,
+		.temperature	= MLXSW_THERMAL_ASIC_TEMP_HOT,
+	},
+};
+
+static const struct mlxsw_cooling_states default_cooling_states[] = {
+	{
+		.min_state	= 0,
+		.max_state	= (4 * MLXSW_THERMAL_MAX_STATE) / 10,
+	},
+	{
+		.min_state	= (4 * MLXSW_THERMAL_MAX_STATE) / 10,
+		.max_state	= MLXSW_THERMAL_MAX_STATE,
+	},
+	{
 		.min_state	= MLXSW_THERMAL_MAX_STATE,
 		.max_state	= MLXSW_THERMAL_MAX_STATE,
 	},
@@ -78,7 +84,8 @@ struct mlxsw_thermal;
 struct mlxsw_thermal_module {
 	struct mlxsw_thermal *parent;
 	struct thermal_zone_device *tzdev;
-	struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
+	struct thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
+	struct mlxsw_cooling_states cooling_states[MLXSW_THERMAL_NUM_TRIPS];
 	int module; /* Module or gearbox number */
 	u8 slot_index;
 };
@@ -99,7 +106,8 @@ struct mlxsw_thermal {
 	int polling_delay;
 	struct thermal_cooling_device *cdevs[MLXSW_MFCR_PWMS_MAX];
 	u8 cooling_levels[MLXSW_THERMAL_MAX_STATE + 1];
-	struct mlxsw_thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
+	struct thermal_trip trips[MLXSW_THERMAL_NUM_TRIPS];
+	struct mlxsw_cooling_states cooling_states[MLXSW_THERMAL_NUM_TRIPS];
 	struct mlxsw_thermal_area line_cards[];
 };
 
@@ -136,9 +144,9 @@ static int mlxsw_get_cooling_device_idx(struct mlxsw_thermal *thermal,
 static void
 mlxsw_thermal_module_trips_reset(struct mlxsw_thermal_module *tz)
 {
-	tz->trips[MLXSW_THERMAL_TEMP_TRIP_NORM].temp = 0;
-	tz->trips[MLXSW_THERMAL_TEMP_TRIP_HIGH].temp = 0;
-	tz->trips[MLXSW_THERMAL_TEMP_TRIP_HOT].temp = 0;
+	tz->trips[MLXSW_THERMAL_TEMP_TRIP_NORM].temperature = 0;
+	tz->trips[MLXSW_THERMAL_TEMP_TRIP_HIGH].temperature = 0;
+	tz->trips[MLXSW_THERMAL_TEMP_TRIP_HOT].temperature = 0;
 }
 
 static int
@@ -180,12 +188,12 @@ mlxsw_thermal_module_trips_update(struct device *dev, struct mlxsw_core *core,
 	 * by subtracting double hysteresis value.
 	 */
 	if (crit_temp >= MLXSW_THERMAL_MODULE_TEMP_SHIFT)
-		tz->trips[MLXSW_THERMAL_TEMP_TRIP_NORM].temp = crit_temp -
+		tz->trips[MLXSW_THERMAL_TEMP_TRIP_NORM].temperature = crit_temp -
 					MLXSW_THERMAL_MODULE_TEMP_SHIFT;
 	else
-		tz->trips[MLXSW_THERMAL_TEMP_TRIP_NORM].temp = crit_temp;
-	tz->trips[MLXSW_THERMAL_TEMP_TRIP_HIGH].temp = crit_temp;
-	tz->trips[MLXSW_THERMAL_TEMP_TRIP_HOT].temp = emerg_temp;
+		tz->trips[MLXSW_THERMAL_TEMP_TRIP_NORM].temperature = crit_temp;
+	tz->trips[MLXSW_THERMAL_TEMP_TRIP_HIGH].temperature = crit_temp;
+	tz->trips[MLXSW_THERMAL_TEMP_TRIP_HOT].temperature = emerg_temp;
 
 	return 0;
 }
@@ -202,11 +210,11 @@ static int mlxsw_thermal_bind(struct thermal_zone_device *tzdev,
 		return 0;
 
 	for (i = 0; i < MLXSW_THERMAL_NUM_TRIPS; i++) {
-		const struct mlxsw_thermal_trip *trip = &thermal->trips[i];
+		const struct mlxsw_cooling_states *state = &thermal->cooling_states[i];
 
 		err = thermal_zone_bind_cooling_device(tzdev, i, cdev,
-						       trip->max_state,
-						       trip->min_state,
+						       state->max_state,
+						       state->min_state,
 						       THERMAL_WEIGHT_DEFAULT);
 		if (err < 0) {
 			dev_err(dev, "Failed to bind cooling device to trip %d\n", i);
@@ -260,61 +268,6 @@ static int mlxsw_thermal_get_temp(struct thermal_zone_device *tzdev,
 	return 0;
 }
 
-static int mlxsw_thermal_get_trip_type(struct thermal_zone_device *tzdev,
-				       int trip,
-				       enum thermal_trip_type *p_type)
-{
-	struct mlxsw_thermal *thermal = tzdev->devdata;
-
-	if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS)
-		return -EINVAL;
-
-	*p_type = thermal->trips[trip].type;
-	return 0;
-}
-
-static int mlxsw_thermal_get_trip_temp(struct thermal_zone_device *tzdev,
-				       int trip, int *p_temp)
-{
-	struct mlxsw_thermal *thermal = tzdev->devdata;
-
-	if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS)
-		return -EINVAL;
-
-	*p_temp = thermal->trips[trip].temp;
-	return 0;
-}
-
-static int mlxsw_thermal_set_trip_temp(struct thermal_zone_device *tzdev,
-				       int trip, int temp)
-{
-	struct mlxsw_thermal *thermal = tzdev->devdata;
-
-	if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS)
-		return -EINVAL;
-
-	thermal->trips[trip].temp = temp;
-	return 0;
-}
-
-static int mlxsw_thermal_get_trip_hyst(struct thermal_zone_device *tzdev,
-				       int trip, int *p_hyst)
-{
-	struct mlxsw_thermal *thermal = tzdev->devdata;
-
-	*p_hyst = thermal->trips[trip].hyst;
-	return 0;
-}
-
-static int mlxsw_thermal_set_trip_hyst(struct thermal_zone_device *tzdev,
-				       int trip, int hyst)
-{
-	struct mlxsw_thermal *thermal = tzdev->devdata;
-
-	thermal->trips[trip].hyst = hyst;
-	return 0;
-}
-
 static struct thermal_zone_params mlxsw_thermal_params = {
 	.no_hwmon = true,
 };
@@ -323,11 +276,6 @@ static struct thermal_zone_device_ops mlxsw_thermal_ops = {
 	.bind = mlxsw_thermal_bind,
 	.unbind = mlxsw_thermal_unbind,
 	.get_temp = mlxsw_thermal_get_temp,
-	.get_trip_type	= mlxsw_thermal_get_trip_type,
-	.get_trip_temp	= mlxsw_thermal_get_trip_temp,
-	.set_trip_temp	= mlxsw_thermal_set_trip_temp,
-	.get_trip_hyst	= mlxsw_thermal_get_trip_hyst,
-	.set_trip_hyst	= mlxsw_thermal_set_trip_hyst,
 };
 
 static int mlxsw_thermal_module_bind(struct thermal_zone_device *tzdev,
@@ -342,11 +290,11 @@ static int mlxsw_thermal_module_bind(struct thermal_zone_device *tzdev,
 		return 0;
 
 	for (i = 0; i < MLXSW_THERMAL_NUM_TRIPS; i++) {
-		const struct mlxsw_thermal_trip *trip = &tz->trips[i];
+		const struct mlxsw_cooling_states *state = &tz->cooling_states[i];
 
 		err = thermal_zone_bind_cooling_device(tzdev, i, cdev,
-						       trip->max_state,
-						       trip->min_state,
+						       state->max_state,
+						       state->min_state,
 						       THERMAL_WEIGHT_DEFAULT);
 		if (err < 0)
 			goto err_thermal_zone_bind_cooling_device;
@@ -434,74 +382,10 @@ static int mlxsw_thermal_module_temp_get(struct thermal_zone_device *tzdev,
 	return 0;
 }
 
-static int
-mlxsw_thermal_module_trip_type_get(struct thermal_zone_device *tzdev, int trip,
-				   enum thermal_trip_type *p_type)
-{
-	struct mlxsw_thermal_module *tz = tzdev->devdata;
-
-	if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS)
-		return -EINVAL;
-
-	*p_type = tz->trips[trip].type;
-	return 0;
-}
-
-static int
-mlxsw_thermal_module_trip_temp_get(struct thermal_zone_device *tzdev,
-				   int trip, int *p_temp)
-{
-	struct mlxsw_thermal_module *tz = tzdev->devdata;
-
-	if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS)
-		return -EINVAL;
-
-	*p_temp = tz->trips[trip].temp;
-	return 0;
-}
-
-static int
-mlxsw_thermal_module_trip_temp_set(struct thermal_zone_device *tzdev,
-				   int trip, int temp)
-{
-	struct mlxsw_thermal_module *tz = tzdev->devdata;
-
-	if (trip < 0 || trip >= MLXSW_THERMAL_NUM_TRIPS)
-		return -EINVAL;
-
-	tz->trips[trip].temp = temp;
-	return 0;
-}
-
-static int
-mlxsw_thermal_module_trip_hyst_get(struct thermal_zone_device *tzdev, int trip,
-				   int *p_hyst)
-{
-	struct mlxsw_thermal_module *tz = tzdev->devdata;
-
-	*p_hyst = tz->trips[trip].hyst;
-	return 0;
-}
-
-static int
-mlxsw_thermal_module_trip_hyst_set(struct thermal_zone_device *tzdev, int trip,
-				   int hyst)
-{
-	struct mlxsw_thermal_module *tz = tzdev->devdata;
-
-	tz->trips[trip].hyst = hyst;
-	return 0;
-}
-
 static struct thermal_zone_device_ops mlxsw_thermal_module_ops = {
 	.bind		= mlxsw_thermal_module_bind,
 	.unbind		= mlxsw_thermal_module_unbind,
 	.get_temp	= mlxsw_thermal_module_temp_get,
-	.get_trip_type	= mlxsw_thermal_module_trip_type_get,
-	.get_trip_temp	= mlxsw_thermal_module_trip_temp_get,
-	.set_trip_temp	= mlxsw_thermal_module_trip_temp_set,
-	.get_trip_hyst	= mlxsw_thermal_module_trip_hyst_get,
-	.set_trip_hyst	= mlxsw_thermal_module_trip_hyst_set,
 };
 
 static int mlxsw_thermal_gearbox_temp_get(struct thermal_zone_device *tzdev,
@@ -531,11 +415,6 @@ static struct thermal_zone_device_ops mlxsw_thermal_gearbox_ops = {
 	.bind		= mlxsw_thermal_module_bind,
 	.unbind		= mlxsw_thermal_module_unbind,
 	.get_temp	= mlxsw_thermal_gearbox_temp_get,
-	.get_trip_type	= mlxsw_thermal_module_trip_type_get,
-	.get_trip_temp	= mlxsw_thermal_module_trip_temp_get,
-	.set_trip_temp	= mlxsw_thermal_module_trip_temp_set,
-	.get_trip_hyst	= mlxsw_thermal_module_trip_hyst_get,
-	.set_trip_hyst	= mlxsw_thermal_module_trip_hyst_set,
 };
 
 static int mlxsw_thermal_get_max_state(struct thermal_cooling_device *cdev,
@@ -617,7 +496,8 @@ mlxsw_thermal_module_tz_init(struct mlxsw_thermal_module *module_tz)
 	else
 		snprintf(tz_name, sizeof(tz_name), "mlxsw-module%d",
 			 module_tz->module + 1);
-	module_tz->tzdev = thermal_zone_device_register(tz_name,
+	module_tz->tzdev = thermal_zone_device_register_with_trips(tz_name,
+							module_tz->trips,
 							MLXSW_THERMAL_NUM_TRIPS,
 							MLXSW_THERMAL_TRIP_MASK,
 							module_tz,
@@ -661,6 +541,8 @@ mlxsw_thermal_module_init(struct device *dev, struct mlxsw_core *core,
 	module_tz->parent = thermal;
 	memcpy(module_tz->trips, default_thermal_trips,
 	       sizeof(thermal->trips));
+	memcpy(module_tz->cooling_states, default_cooling_states,
+	       sizeof(thermal->cooling_states));
 	/* Initialize all trip point. */
 	mlxsw_thermal_module_trips_reset(module_tz);
 	/* Read module temperature and thresholds. */
@@ -756,7 +638,8 @@ mlxsw_thermal_gearbox_tz_init(struct mlxsw_thermal_module *gearbox_tz)
 	else
 		snprintf(tz_name, sizeof(tz_name), "mlxsw-gearbox%d",
 			 gearbox_tz->module + 1);
-	gearbox_tz->tzdev = thermal_zone_device_register(tz_name,
+	gearbox_tz->tzdev = thermal_zone_device_register_with_trips(tz_name,
+						gearbox_tz->trips,
 						MLXSW_THERMAL_NUM_TRIPS,
 						MLXSW_THERMAL_TRIP_MASK,
 						gearbox_tz,
@@ -813,6 +696,8 @@ mlxsw_thermal_gearboxes_init(struct device *dev, struct mlxsw_core *core,
 		gearbox_tz = &area->tz_gearbox_arr[i];
 		memcpy(gearbox_tz->trips, default_thermal_trips,
 		       sizeof(thermal->trips));
+		memcpy(gearbox_tz->cooling_states, default_cooling_states,
+		       sizeof(thermal->cooling_states));
 		gearbox_tz->module = i;
 		gearbox_tz->parent = thermal;
 		gearbox_tz->slot_index = area->slot_index;
@@ -928,6 +813,7 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
 	thermal->core = core;
 	thermal->bus_info = bus_info;
 	memcpy(thermal->trips, default_thermal_trips, sizeof(thermal->trips));
+	memcpy(thermal->cooling_states, default_cooling_states, sizeof(thermal->cooling_states));
 	thermal->line_cards[0].slot_index = 0;
 
 	err = mlxsw_reg_query(thermal->core, MLXSW_REG(mfcr), mfcr_pl);
@@ -981,7 +867,8 @@ int mlxsw_thermal_init(struct mlxsw_core *core,
 				 MLXSW_THERMAL_SLOW_POLL_INT :
 				 MLXSW_THERMAL_POLL_INT;
 
-	thermal->tzdev = thermal_zone_device_register("mlxsw",
+	thermal->tzdev = thermal_zone_device_register_with_trips("mlxsw",
+						      thermal->trips,
 						      MLXSW_THERMAL_NUM_TRIPS,
 						      MLXSW_THERMAL_TRIP_MASK,
 						      thermal,

From e6ec64f85237b48c071158617cfc954a30285fc7 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro@kernel.org>
Date: Wed, 14 Dec 2022 14:16:14 +0100
Subject: [PATCH 34/37] thermal/drivers/qcom: Fix set_trip_temp() deadlock

The set_trip_temp() callback is used when changing the trip temperature
through sysfs. As it is called with the thermal-zone-device lock held
it must not use thermal_zone_get_trip() directly or it will deadlock.

Fixes: 78c3e2429be8 ("thermal/drivers/qcom: Use generic thermal_zone_get_trip() function")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221214131617.2447-2-johan+linaro@kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
---
 drivers/thermal/qcom/qcom-spmi-temp-alarm.c | 2 +-
 drivers/thermal/thermal_core.c              | 1 +
 include/linux/thermal.h                     | 2 ++
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/qcom/qcom-spmi-temp-alarm.c b/drivers/thermal/qcom/qcom-spmi-temp-alarm.c
index 58055a7abaf6..bfaec74f13b2 100644
--- a/drivers/thermal/qcom/qcom-spmi-temp-alarm.c
+++ b/drivers/thermal/qcom/qcom-spmi-temp-alarm.c
@@ -270,7 +270,7 @@ static int qpnp_tm_set_trip_temp(struct thermal_zone_device *tz, int trip_id, in
 	struct thermal_trip trip;
 	int ret;
 
-	ret = thermal_zone_get_trip(chip->tz_dev, trip_id, &trip);
+	ret = __thermal_zone_get_trip(chip->tz_dev, trip_id, &trip);
 	if (ret)
 		return ret;
 
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index c24c9efcd175..d9a3d9566d73 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1214,6 +1214,7 @@ int __thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
 
 	return tz->ops->get_trip_type(tz, trip_id, &trip->type);
 }
+EXPORT_SYMBOL_GPL(__thermal_zone_get_trip);
 
 int thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
 			  struct thermal_trip *trip)
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index e2797f314d99..30353e4b1424 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -334,6 +334,8 @@ static inline void devm_thermal_of_zone_unregister(struct device *dev,
 }
 #endif
 
+int __thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
+			    struct thermal_trip *trip);
 int thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
 			  struct thermal_trip *trip);
 

From b0b5d063d66e85c24c32bf169fe4879bf08ea580 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro@kernel.org>
Date: Wed, 14 Dec 2022 14:16:16 +0100
Subject: [PATCH 35/37] thermal/drivers/tegra: Fix set_trip_temp() deadlock

The set_trip_temp() callback is used when changing the trip temperature
through sysfs. As it is called with the thermal-zone-device lock held
it must not use thermal_zone_get_trip() directly or it will deadlock.

Fixes: 56d7b397cc29 ("thermal/drivers/tegra: Use generic thermal_zone_get_trip() function")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221214131617.2447-4-johan+linaro@kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
---
 drivers/thermal/tegra/soctherm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c
index 4203e74e2f79..220873298d77 100644
--- a/drivers/thermal/tegra/soctherm.c
+++ b/drivers/thermal/tegra/soctherm.c
@@ -594,7 +594,7 @@ static int tegra_thermctl_set_trip_temp(struct thermal_zone_device *tz, int trip
 	if (!tz)
 		return -EINVAL;
 
-	ret = thermal_zone_get_trip(tz, trip_id, &trip);
+	ret = __thermal_zone_get_trip(tz, trip_id, &trip);
 	if (ret)
 		return ret;
 

From 59edcd91d852f88ef7d208029503f9b5310d0603 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro@kernel.org>
Date: Wed, 14 Dec 2022 14:16:17 +0100
Subject: [PATCH 36/37] thermal/drivers/qcom: Fix lock inversion

The thermal-zone-device lock is held by core when setting trip points
and the driver takes its chip lock in the corresponding callback.

Fetching the thermal trip points using thermal_zone_get_trip() also
involves taking the thermal-zone-device lock, which means that the chip
lock can not be held when doing so.

Drop the chip lock temporarily during probe to avoid the lock inversion
that was detected by lockdep:

  ======================================================
  WARNING: possible circular locking dependency detected
  6.1.0-next-20221213 #122 Not tainted
  ------------------------------------------------------
  systemd-udevd/264 is trying to acquire lock:
  ffff741e444a0920 (&chip->lock){+.+.}-{3:3}, at: qpnp_tm_get_temp+0xb4/0x1b0 [qcom_spmi_temp_alarm]

  but task is already holding lock:
  ffff741e44341618 (&tz->lock){+.+.}-{3:3}, at: thermal_zone_device_update+0x2c/0x70

  which lock already depends on the new lock.

Fixes: 78c3e2429be8 ("thermal/drivers/qcom: Use generic thermal_zone_get_trip() function")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20221214131617.2447-5-johan+linaro@kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
---
 drivers/thermal/qcom/qcom-spmi-temp-alarm.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/thermal/qcom/qcom-spmi-temp-alarm.c b/drivers/thermal/qcom/qcom-spmi-temp-alarm.c
index bfaec74f13b2..e2429676d0d2 100644
--- a/drivers/thermal/qcom/qcom-spmi-temp-alarm.c
+++ b/drivers/thermal/qcom/qcom-spmi-temp-alarm.c
@@ -348,7 +348,12 @@ static int qpnp_tm_init(struct qpnp_tm_chip *chip)
 	if (stage)
 		chip->temp = qpnp_tm_decode_temp(chip, stage);
 
+	mutex_unlock(&chip->lock);
+
 	crit_temp = qpnp_tm_get_critical_trip_temp(chip);
+
+	mutex_lock(&chip->lock);
+
 	ret = qpnp_tm_update_critical_trip_temp(chip, crit_temp);
 	if (ret < 0)
 		goto out;

From 3a151494dc04c76add577ae66e8a04f900638aaf Mon Sep 17 00:00:00 2001
From: Xu Panda <xu.panda@zte.com.cn>
Date: Wed, 28 Dec 2022 09:45:49 +0800
Subject: [PATCH 37/37] thermal/drivers/armada: Use strscpy() to instead of
 strncpy()

The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL-terminated strings.

Signed-off-by: Xu Panda <xu.panda@zte.com.cn>
Signed-off-by: Yang Yang <yang.yang29@zte.com>
Link: https://lore.kernel.org/r/202212280945491860150@zte.com.cn
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
---
 drivers/thermal/armada_thermal.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c
index b28695a55eea..db040dbdaa0a 100644
--- a/drivers/thermal/armada_thermal.c
+++ b/drivers/thermal/armada_thermal.c
@@ -761,8 +761,7 @@ static void armada_set_sane_name(struct platform_device *pdev,
 	}
 
 	/* Save the name locally */
-	strncpy(priv->zone_name, name, THERMAL_NAME_LENGTH - 1);
-	priv->zone_name[THERMAL_NAME_LENGTH - 1] = '\0';
+	strscpy(priv->zone_name, name, THERMAL_NAME_LENGTH);
 
 	/* Then check there are no '-' or hwmon core will complain */
 	do {