PM: domains: Drop the unused pm_genpd_opp_to_performance_state()

Since commit 7c41cdcd3bbe ("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: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20231127151931.47055-1-ulf.hansson@linaro.org

diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index da1777e39eaa5298fbc41f3b7f9a313f3137f50f..cf65b5a9783cbb600277946430a8cc4cd01d3bde 100644 (file)
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -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);

diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 34663d0d5c559d48ad3a48931615f2743718e1dc..b97c5e9820f970e7695c2212402f6da4baeb13de 100644 (file)
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -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;