[PATCH v2 04/12] thermal/core: Remove node pointer parameter when registering a tz

[Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>]

Now we have a OF version for all functions registering a thermal zone
or a cooling device. Let's remove the device_node pointer parameter in
the core function which is inconsistent with non-OF code.

Signed-off-by: Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>
---
 drivers/thermal/thermal_core.c | 52 ++++++++++++++++++++++++++++++----
 drivers/thermal/thermal_core.h |  3 +-
 drivers/thermal/thermal_of.c   |  2 +-
 include/linux/thermal.h        | 11 +++++++
 4 files changed, 59 insertions(+), 9 deletions(-)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 35cf170f3fa1..113719466dc2 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1042,7 +1042,6 @@ void thermal_cooling_device_init_complete(struct thermal_cooling_device *cdev)
 
 /**
  * __thermal_cooling_device_register() - register a new thermal cooling device
- * @np:		a pointer to a device tree node.
  * @type:	the thermal cooling device type.
  * @devdata:	device private data.
  * @ops:	standard thermal cooling devices callbacks.
@@ -1050,15 +1049,12 @@ void thermal_cooling_device_init_complete(struct thermal_cooling_device *cdev)
  * This interface function adds a new thermal cooling device (fan/processor/...)
  * to /sys/class/thermal/ folder as cooling_device[0-*]. It tries to bind itself
  * to all the thermal zone devices registered at the same time.
- * It also gives the opportunity to link the cooling device to a device tree
- * node, so that it can be bound to a thermal zone created out of device tree.
  *
  * Return: a pointer to the created struct thermal_cooling_device or an
  * ERR_PTR. Caller must check return value with IS_ERR*() helpers.
  */
 struct thermal_cooling_device *
-__thermal_cooling_device_register(struct device_node *np,
-				  const char *type, void *devdata,
+__thermal_cooling_device_register(const char *type, void *devdata,
 				  const struct thermal_cooling_device_ops *ops)
 {
 	struct thermal_cooling_device *cdev;
@@ -1159,7 +1155,7 @@ thermal_cooling_device_register(const char *type, void *devdata,
 {
 	struct thermal_cooling_device *cdev;
 
-	cdev = __thermal_cooling_device_register(NULL, type, devdata, ops);
+	cdev = __thermal_cooling_device_register(type, devdata, ops);
 	if (!IS_ERR(cdev))
 		thermal_cooling_device_init_complete(cdev);
 
@@ -1167,6 +1163,50 @@ thermal_cooling_device_register(const char *type, void *devdata,
 }
 EXPORT_SYMBOL_GPL(thermal_cooling_device_register);
 
+static void thermal_cooling_device_release(struct device *dev, void *res)
+{
+	thermal_cooling_device_unregister(*(struct thermal_cooling_device **)res);
+}
+
+/**
+ * devm_thermal_cooling_device_register() - register a thermal cooling device
+ * @dev:	a valid struct device pointer of a sensor device.
+ * @type:	the thermal cooling device type.
+ * @devdata:	device private data.
+ * @ops:	standard thermal cooling devices callbacks.
+ *
+ * This function will register a cooling device with device tree node reference.
+ * This interface function adds a new thermal cooling device (fan/processor/...)
+ * to /sys/class/thermal/ folder as cooling_device[0-*]. It tries to bind itself
+ * to all the thermal zone devices registered at the same time.
+ *
+ * Return: a pointer to the created struct thermal_cooling_device or an
+ * ERR_PTR. Caller must check return value with IS_ERR*() helpers.
+ */
+struct thermal_cooling_device *
+devm_thermal_cooling_device_register(struct device *dev, const char *type,
+				     void *devdata, const struct thermal_cooling_device_ops *ops)
+{
+	struct thermal_cooling_device **ptr, *tcd;
+
+	ptr = devres_alloc(thermal_cooling_device_release, sizeof(*ptr),
+			   GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+
+	tcd = thermal_cooling_device_register(type, devdata, ops);
+	if (IS_ERR(tcd)) {
+		devres_free(ptr);
+		return tcd;
+	}
+
+	*ptr = tcd;
+	devres_add(dev, ptr);
+
+	return tcd;
+}
+EXPORT_SYMBOL_GPL(devm_thermal_cooling_device_register);
+
 static bool thermal_cooling_device_present(struct thermal_cooling_device *cdev)
 {
 	struct thermal_cooling_device *pos = NULL;
diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index 6e44bcf37b00..d45455bb9e9e 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -272,8 +272,7 @@ void thermal_governor_update_tz(struct thermal_zone_device *tz,
 void thermal_cooling_device_init_complete(struct thermal_cooling_device *cdev);
 
 struct thermal_cooling_device *
-__thermal_cooling_device_register(struct device_node *np,
-				  const char *type, void *devdata,
+__thermal_cooling_device_register(const char *type, void *devdata,
 				  const struct thermal_cooling_device_ops *ops);
 
 /* Helpers */
diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index c4b67554df44..3ba8c970f11f 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -533,7 +533,7 @@ thermal_of_cooling_device_register(struct device_node *np,
 {
 	struct thermal_cooling_device *cdev;
 
-	cdev = __thermal_cooling_device_register(np, type, devdata, ops);
+	cdev = __thermal_cooling_device_register(type, devdata, ops);
 	if (IS_ERR(cdev))
 		return cdev;
 
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index d9ad860cee87..ba2c8b4dda87 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -278,6 +278,11 @@ void thermal_zone_device_update(struct thermal_zone_device *,
 
 struct thermal_cooling_device *thermal_cooling_device_register(const char *,
 		void *, const struct thermal_cooling_device_ops *);
+
+struct thermal_cooling_device *
+devm_thermal_cooling_device_register(struct device *dev, const char *type,
+				     void *devdata, const struct thermal_cooling_device_ops *ops);
+
 void thermal_cooling_device_update(struct thermal_cooling_device *);
 void thermal_cooling_device_unregister(struct thermal_cooling_device *);
 struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name);
@@ -322,7 +327,13 @@ static inline struct thermal_cooling_device *
 thermal_cooling_device_register(const char *type, void *devdata,
 	const struct thermal_cooling_device_ops *ops)
 { return ERR_PTR(-ENODEV); }
+
 static inline struct thermal_cooling_device *
+devm_thermal_cooling_device_register(struct device *dev, const char *type,
+				     void *devdata, const struct thermal_cooling_device_ops *ops)
+{
+	return ERR_PTR(-ENODEV);
+}
 
 static inline void thermal_cooling_device_unregister(
 	struct thermal_cooling_device *cdev)
-- 
2.43.0