Commit 4e1d9a73 authored by Patrice Chotard's avatar Patrice Chotard Committed by Rafael J. Wysocki
Browse files

PM: sleep: Add dev_wakeup_path() helper 



Add dev_wakeup_path() helper to avoid to spread
dev->power.wakeup_path test in drivers.

Signed-off-by: default avatarPatrice Chotard <patrice.chotard@st.com>
Reviewed-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent ab150c3f

drivers/base/power/domain.c

+2 −2
Original line number Diff line number Diff line
@@ -1142,7 +1142,7 @@ static int genpd_finish_suspend(struct device *dev, bool poweroff) 
	if (ret)

		return ret;



	if (dev->power.wakeup_path && genpd_is_active_wakeup(genpd))

	if (device_wakeup_path(dev) && genpd_is_active_wakeup(genpd))

		return 0;



	if (genpd->dev_ops.stop && genpd->dev_ops.start &&
@@ -1196,7 +1196,7 @@ static int genpd_resume_noirq(struct device *dev) 
	if (IS_ERR(genpd))

		return -EINVAL;



	if (dev->power.wakeup_path && genpd_is_active_wakeup(genpd))

	if (device_wakeup_path(dev) && genpd_is_active_wakeup(genpd))

		return pm_generic_resume_noirq(dev);



	genpd_lock(genpd);

drivers/base/power/main.c

+2 −2
Original line number Diff line number Diff line
@@ -1359,7 +1359,7 @@ static void dpm_propagate_wakeup_to_parent(struct device *dev) 


	spin_lock_irq(&parent->power.lock);



	if (dev->power.wakeup_path && !parent->power.ignore_children)

	if (device_wakeup_path(dev) && !parent->power.ignore_children)

		parent->power.wakeup_path = true;



	spin_unlock_irq(&parent->power.lock);
@@ -1627,7 +1627,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async) 
		goto Complete;



	/* Avoid direct_complete to let wakeup_path propagate. */

	if (device_may_wakeup(dev) || dev->power.wakeup_path)

	if (device_may_wakeup(dev) || device_wakeup_path(dev))

		dev->power.direct_complete = false;



	if (dev->power.direct_complete) {

drivers/i2c/busses/i2c-stm32f7.c

+2 −2
Original line number Diff line number Diff line
@@ -2322,7 +2322,7 @@ static int stm32f7_i2c_suspend(struct device *dev) 


	i2c_mark_adapter_suspended(&i2c_dev->adap);



	if (!device_may_wakeup(dev) && !dev->power.wakeup_path) {

	if (!device_may_wakeup(dev) && !device_wakeup_path(dev)) {

		ret = stm32f7_i2c_regs_backup(i2c_dev);

		if (ret < 0) {

			i2c_mark_adapter_resumed(&i2c_dev->adap);
@@ -2341,7 +2341,7 @@ static int stm32f7_i2c_resume(struct device *dev) 
	struct stm32f7_i2c_dev *i2c_dev = dev_get_drvdata(dev);

	int ret;



	if (!device_may_wakeup(dev) && !dev->power.wakeup_path) {

	if (!device_may_wakeup(dev) && !device_wakeup_path(dev)) {

		ret = pm_runtime_force_resume(dev);

		if (ret < 0)

			return ret;

include/linux/pm_wakeup.h

+10 −0
Original line number Diff line number Diff line
@@ -84,6 +84,11 @@ static inline bool device_may_wakeup(struct device *dev) 
	return dev->power.can_wakeup && !!dev->power.wakeup;

}



static inline bool device_wakeup_path(struct device *dev)

{

	return dev->power.wakeup_path;

}



static inline void device_set_wakeup_path(struct device *dev)

{

	dev->power.wakeup_path = true;
@@ -174,6 +179,11 @@ static inline bool device_may_wakeup(struct device *dev) 
	return dev->power.can_wakeup && dev->power.should_wakeup;

}



static inline bool device_wakeup_path(struct device *dev)

{

	return false;

}



static inline void device_set_wakeup_path(struct device *dev) {}



static inline void __pm_stay_awake(struct wakeup_source *ws) {}

CRA Git | Maintained and supported by SUSTech CRA and CCSE