[PATCH V6 01/15] PM / OPP: Expose refcounting helpers for the Rust implementation

[Viresh Kumar]

The Rust implementation needs these APIs for its working. Expose them.

Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
 drivers/opp/core.c     | 17 ++++++++++++-----
 drivers/opp/opp.h      |  1 -
 include/linux/pm_opp.h |  6 ++++++
 3 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 0311b18319a4..f950bf1f78ca 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1480,11 +1480,6 @@ static struct opp_table *_allocate_opp_table(struct device *dev, int index)
 	return ERR_PTR(ret);
 }
 
-void _get_opp_table_kref(struct opp_table *opp_table)
-{
-	kref_get(&opp_table->kref);
-}
-
 static struct opp_table *_update_opp_table_clk(struct device *dev,
 					       struct opp_table *opp_table,
 					       bool getclk)
@@ -1645,6 +1640,17 @@ static void _opp_table_kref_release(struct kref *kref)
 	kfree(opp_table);
 }
 
+void _get_opp_table_kref(struct opp_table *opp_table)
+{
+	kref_get(&opp_table->kref);
+}
+
+void dev_pm_opp_get_opp_table_ref(struct opp_table *opp_table)
+{
+	_get_opp_table_kref(opp_table);
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_get_opp_table_ref);
+
 void dev_pm_opp_put_opp_table(struct opp_table *opp_table)
 {
 	kref_put_mutex(&opp_table->kref, _opp_table_kref_release,
@@ -1679,6 +1685,7 @@ void dev_pm_opp_get(struct dev_pm_opp *opp)
 {
 	kref_get(&opp->kref);
 }
+EXPORT_SYMBOL_GPL(dev_pm_opp_get);
 
 void dev_pm_opp_put(struct dev_pm_opp *opp)
 {
diff --git a/drivers/opp/opp.h b/drivers/opp/opp.h
index 430651e7424a..5c7c81190e41 100644
--- a/drivers/opp/opp.h
+++ b/drivers/opp/opp.h
@@ -250,7 +250,6 @@ struct opp_table {
 };
 
 /* Routines internal to opp core */
-void dev_pm_opp_get(struct dev_pm_opp *opp);
 bool _opp_remove_all_static(struct opp_table *opp_table);
 void _get_opp_table_kref(struct opp_table *opp_table);
 int _get_opp_count(struct opp_table *opp_table);
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 568183e3e641..fd817815a0f9 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -100,6 +100,7 @@ struct dev_pm_opp_data {
 #if defined(CONFIG_PM_OPP)
 
 struct opp_table *dev_pm_opp_get_opp_table(struct device *dev);
+void dev_pm_opp_get_opp_table_ref(struct opp_table *opp_table);
 void dev_pm_opp_put_opp_table(struct opp_table *opp_table);
 
 unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp);
@@ -158,6 +159,7 @@ struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev,
 struct dev_pm_opp *dev_pm_opp_find_bw_floor(struct device *dev,
 					   unsigned int *bw, int index);
 
+void dev_pm_opp_get(struct dev_pm_opp *opp);
 void dev_pm_opp_put(struct dev_pm_opp *opp);
 
 int dev_pm_opp_add_dynamic(struct device *dev, struct dev_pm_opp_data *opp);
@@ -203,6 +205,8 @@ static inline struct opp_table *dev_pm_opp_get_opp_table_indexed(struct device *
 	return ERR_PTR(-EOPNOTSUPP);
 }
 
+static inline void dev_pm_opp_get_opp_table_ref(struct opp_table *opp_table) {}
+
 static inline void dev_pm_opp_put_opp_table(struct opp_table *opp_table) {}
 
 static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
@@ -334,6 +338,8 @@ static inline struct dev_pm_opp *dev_pm_opp_find_bw_floor(struct device *dev,
 	return ERR_PTR(-EOPNOTSUPP);
 }
 
+static inline void dev_pm_opp_get(struct dev_pm_opp *opp) {}
+
 static inline void dev_pm_opp_put(struct dev_pm_opp *opp) {}
 
 static inline int
-- 
2.31.1.272.g89b43f80a514