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PM: runtime: Add new devm functions

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

Signed-off-by: Bence Csókás <csokas.bence@prolan.hu>
Link: https://patch.msgid.link/20250327195928.680771-3-csokas.bence@prolan.hu
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bence Csókás
2025-03-27 20:59:26 +01:00
committed by Rafael J. Wysocki
parent b4432656b3
commit 73db799bf5
2 changed files with 48 additions and 0 deletions
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44
drivers/base/power/runtime.c
View File

@@ -1568,6 +1568,32 @@ 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_enabled - set_active version of devm_pm_runtime_enable.
*
* @dev: Device to handle.
*/
int devm_pm_runtime_set_active_enabled(struct device *dev)
{
int err;
err = pm_runtime_set_active(dev);
if (err)
return err;
err = devm_add_action_or_reset(dev, pm_runtime_set_suspended_action, dev);
if (err)
return err;
return devm_pm_runtime_enable(dev);
}
EXPORT_SYMBOL_GPL(devm_pm_runtime_set_active_enabled);
static void pm_runtime_disable_action(void *data)
{
pm_runtime_dont_use_autosuspend(data);
@@ -1590,6 +1616,24 @@ 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.

4
include/linux/pm_runtime.h
View File

@@ -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_enabled(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_enabled(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) {}