Commit 05ce7192 authored by Ulf Hansson's avatar Ulf Hansson
Browse files

PM: domains: Drop the unused pm_genpd_opp_to_performance_state() 



Since commit 7c41cdcd ("OPP: Simplify the over-designed pstate <->
level dance"), there is no longer any users of the
pm_genpd_opp_to_performance_state() API. Let's therefore drop it and its
corresponding ->opp_to_performance_state() callback, which also no longer
has any users.

Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Acked-by: default avatarRafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20231127151931.47055-1-ulf.hansson@linaro.org
parent 3b2714c5

drivers/base/power/domain.c

+0 −32
Original line number Diff line number Diff line
@@ -3042,38 +3042,6 @@ int of_genpd_parse_idle_states(struct device_node *dn, 
}

EXPORT_SYMBOL_GPL(of_genpd_parse_idle_states);



/**

 * pm_genpd_opp_to_performance_state - Gets performance state of the genpd from its OPP node.

 *

 * @genpd_dev: Genpd's device for which the performance-state needs to be found.

 * @opp: struct dev_pm_opp of the OPP for which we need to find performance

 *	state.

 *

 * Returns performance state encoded in the OPP of the genpd. This calls

 * platform specific genpd->opp_to_performance_state() callback to translate

 * power domain OPP to performance state.

 *

 * Returns performance state on success and 0 on failure.

 */

unsigned int pm_genpd_opp_to_performance_state(struct device *genpd_dev,

					       struct dev_pm_opp *opp)

{

	struct generic_pm_domain *genpd = NULL;

	int state;



	genpd = container_of(genpd_dev, struct generic_pm_domain, dev);



	if (unlikely(!genpd->opp_to_performance_state))

		return 0;



	genpd_lock(genpd);

	state = genpd->opp_to_performance_state(genpd, opp);

	genpd_unlock(genpd);



	return state;

}

EXPORT_SYMBOL_GPL(pm_genpd_opp_to_performance_state);



static int __init genpd_bus_init(void)

{

	return bus_register(&genpd_bus_type);

include/linux/pm_domain.h

+0 −12
Original line number Diff line number Diff line
@@ -118,7 +118,6 @@ struct genpd_power_state { 
};



struct genpd_lock_ops;

struct dev_pm_opp;

struct opp_table;



struct generic_pm_domain {
@@ -146,8 +145,6 @@ struct generic_pm_domain { 
	int (*power_on)(struct generic_pm_domain *domain);

	struct raw_notifier_head power_notifiers; /* Power on/off notifiers */

	struct opp_table *opp_table;	/* OPP table of the genpd */

	unsigned int (*opp_to_performance_state)(struct generic_pm_domain *genpd,

						 struct dev_pm_opp *opp);

	int (*set_performance_state)(struct generic_pm_domain *genpd,

				     unsigned int state);

	struct gpd_dev_ops dev_ops;
@@ -348,8 +345,6 @@ int of_genpd_remove_subdomain(struct of_phandle_args *parent_spec, 
struct generic_pm_domain *of_genpd_remove_last(struct device_node *np);

int of_genpd_parse_idle_states(struct device_node *dn,

			       struct genpd_power_state **states, int *n);

unsigned int pm_genpd_opp_to_performance_state(struct device *genpd_dev,

					       struct dev_pm_opp *opp);



int genpd_dev_pm_attach(struct device *dev);

struct device *genpd_dev_pm_attach_by_id(struct device *dev,
@@ -395,13 +390,6 @@ static inline int of_genpd_parse_idle_states(struct device_node *dn, 
	return -ENODEV;

}



static inline unsigned int

pm_genpd_opp_to_performance_state(struct device *genpd_dev,

				  struct dev_pm_opp *opp)

{

	return 0;

}



static inline int genpd_dev_pm_attach(struct device *dev)

{

	return 0;