[v5,1/2] pm: runtime: Add new devm functions

Commit Message

Bence Csókás March 17, 2025, 9:34 a.m. UTC

Add `devm_pm_runtime_set_active()` and
`devm_pm_runtime_get_noresume()` for
simplifying common use cases in drivers.

Signed-off-by: Bence Csókás <[e-mail]>
---
 drivers/base/power/runtime.c | 36 ++++++++++++++++++++++++++++++++++++
 include/linux/pm_runtime.h   |  4 ++++
 2 files changed, 40 insertions(+)

Patch

diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 9589ccb0fda2..821a8b4961d4 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -1568,6 +1568,24 @@  void pm_runtime_enable(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(pm_runtime_enable);
 
+static void pm_runtime_set_suspended_action(void *data)
+{
+	pm_runtime_set_suspended(data);
+}
+
+/**
+ * devm_pm_runtime_set_active - devres-enabled version of pm_runtime_set_active.
+ *
+ * @dev: Device to handle.
+ */
+int devm_pm_runtime_set_active(struct device *dev)
+{
+	pm_runtime_set_active(dev);
+
+	return devm_add_action_or_reset(dev, pm_runtime_set_suspended_action, dev);
+}
+EXPORT_SYMBOL_GPL(devm_pm_runtime_set_active);
+
 static void pm_runtime_disable_action(void *data)
 {
 	pm_runtime_dont_use_autosuspend(data);
@@ -1590,6 +1608,24 @@  int devm_pm_runtime_enable(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(devm_pm_runtime_enable);
 
+static void pm_runtime_put_noidle_action(void *data)
+{
+	pm_runtime_put_noidle(data);
+}
+
+/**
+ * devm_pm_runtime_get_noresume - devres-enabled version of pm_runtime_get_noresume.
+ *
+ * @dev: Device to handle.
+ */
+int devm_pm_runtime_get_noresume(struct device *dev)
+{
+	pm_runtime_get_noresume(dev);
+
+	return devm_add_action_or_reset(dev, pm_runtime_put_noidle_action, dev);
+}
+EXPORT_SYMBOL_GPL(devm_pm_runtime_get_noresume);
+
 /**
  * pm_runtime_forbid - Block runtime PM of a device.
  * @dev: Device to handle.
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 7fb5a459847e..364355da349a 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -96,7 +96,9 @@  extern void pm_runtime_new_link(struct device *dev);
 extern void pm_runtime_drop_link(struct device_link *link);
 extern void pm_runtime_release_supplier(struct device_link *link);
 
+int devm_pm_runtime_set_active(struct device *dev);
 extern int devm_pm_runtime_enable(struct device *dev);
+int devm_pm_runtime_get_noresume(struct device *dev);
 
 /**
  * pm_suspend_ignore_children - Set runtime PM behavior regarding children.
@@ -294,7 +296,9 @@  static inline bool pm_runtime_blocked(struct device *dev) { return true; }
 static inline void pm_runtime_allow(struct device *dev) {}
 static inline void pm_runtime_forbid(struct device *dev) {}
 
+static inline int devm_pm_runtime_set_active(struct device *dev) { return 0; }
 static inline int devm_pm_runtime_enable(struct device *dev) { return 0; }
+static inline int devm_pm_runtime_get_noresume(struct device *dev) { return 0; }
 
 static inline void pm_suspend_ignore_children(struct device *dev, bool enable) {}
 static inline void pm_runtime_get_noresume(struct device *dev) {}