Commit 401e0920 authored by Ulf Hansson's avatar Ulf Hansson Committed by Viresh Kumar
Browse files

PM: domains: Implement the ->set_performance_state() callback for genpd 



To enable generic support for performance scaling for PM domains, let's
implement the ->set_performance_state() callback for genpd.

Beyond this change, users of the corresponding genpd specific API,
dev_pm_genpd_set_performance_state() are encouraged to switch to the common
dev_pm_domain_set_performance_state() API.

Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent 3fbc5c3b

drivers/base/power/domain.c

+21 −12
Original line number Diff line number Diff line
@@ -419,6 +419,25 @@ static void genpd_restore_performance_state(struct device *dev, 
		genpd_set_performance_state(dev, state);

}



static int genpd_dev_pm_set_performance_state(struct device *dev,

					      unsigned int state)

{

	struct generic_pm_domain *genpd = dev_to_genpd(dev);

	int ret = 0;



	genpd_lock(genpd);

	if (pm_runtime_suspended(dev)) {

		dev_gpd_data(dev)->rpm_pstate = state;

	} else {

		ret = genpd_set_performance_state(dev, state);

		if (!ret)

			dev_gpd_data(dev)->rpm_pstate = 0;

	}

	genpd_unlock(genpd);



	return ret;

}



/**

 * dev_pm_genpd_set_performance_state- Set performance state of device's power

 * domain.
@@ -437,7 +456,6 @@ static void genpd_restore_performance_state(struct device *dev, 
int dev_pm_genpd_set_performance_state(struct device *dev, unsigned int state)

{

	struct generic_pm_domain *genpd;

	int ret = 0;



	genpd = dev_to_genpd_safe(dev);

	if (!genpd)
@@ -447,17 +465,7 @@ int dev_pm_genpd_set_performance_state(struct device *dev, unsigned int state) 
		     !dev->power.subsys_data->domain_data))

		return -EINVAL;



	genpd_lock(genpd);

	if (pm_runtime_suspended(dev)) {

		dev_gpd_data(dev)->rpm_pstate = state;

	} else {

		ret = genpd_set_performance_state(dev, state);

		if (!ret)

			dev_gpd_data(dev)->rpm_pstate = 0;

	}

	genpd_unlock(genpd);



	return ret;

	return genpd_dev_pm_set_performance_state(dev, state);

}

EXPORT_SYMBOL_GPL(dev_pm_genpd_set_performance_state);
@@ -2079,6 +2087,7 @@ int pm_genpd_init(struct generic_pm_domain *genpd, 
	genpd->domain.ops.restore_noirq = genpd_restore_noirq;

	genpd->domain.ops.complete = genpd_complete;

	genpd->domain.start = genpd_dev_pm_start;

	genpd->domain.set_performance_state = genpd_dev_pm_set_performance_state;



	if (genpd->flags & GENPD_FLAG_PM_CLK) {

		genpd->dev_ops.stop = pm_clk_suspend;