Commit 73db799b authored by Bence Csókás's avatar Bence Csókás Committed by Rafael J. Wysocki
Browse files

PM: runtime: Add new devm functions 



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

Signed-off-by: default avatarBence Csókás <csokas.bence@prolan.hu>
Link: https://patch.msgid.link/20250327195928.680771-3-csokas.bence@prolan.hu


Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent b4432656

drivers/base/power/runtime.c

+44 −0
Original line number Diff line number Diff line
@@ -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.

include/linux/pm_runtime.h

+4 −0
Original line number Diff line number Diff line
@@ -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) {}