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OPP: Return opp from dev_pm_opp_get()

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For convenience of users, return back the pointer to the opp from
dev_pm_opp_get(), so they can do:

	opp = dev_pm_opp_get(tmp_opp);

No intentional functional impact.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Viresh Kumar
2025-04-23 15:48:40 +05:30
parent 4cb1383f95
commit 7a3be00771
2 changed files with 11 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/opp/core.c
View File

@@ -1188,8 +1188,8 @@ static void _find_current_opp(struct device *dev, struct opp_table *opp_table)
*/
if (IS_ERR(opp)) {
mutex_lock(&opp_table->lock);
opp = list_first_entry(&opp_table->opp_list, struct dev_pm_opp, node);
dev_pm_opp_get(opp);
opp = dev_pm_opp_get(list_first_entry(&opp_table->opp_list,
struct dev_pm_opp, node));
mutex_unlock(&opp_table->lock);
}
@@ -1329,8 +1329,7 @@ static int _set_opp(struct device *dev, struct opp_table *opp_table,
dev_pm_opp_put(old_opp);
/* Make sure current_opp doesn't get freed */
dev_pm_opp_get(opp);
opp_table->current_opp = opp;
opp_table->current_opp = dev_pm_opp_get(opp);
return ret;
}
@@ -1724,9 +1723,10 @@ static void _opp_kref_release(struct kref *kref)
kfree(opp);
}
void dev_pm_opp_get(struct dev_pm_opp *opp)
struct dev_pm_opp *dev_pm_opp_get(struct dev_pm_opp *opp)
{
kref_get(&opp->kref);
return opp;
}
EXPORT_SYMBOL_GPL(dev_pm_opp_get);
@@ -2706,8 +2706,7 @@ struct dev_pm_opp *dev_pm_opp_xlate_required_opp(struct opp_table *src_table,
list_for_each_entry(opp, &src_table->opp_list, node) {
if (opp == src_opp) {
dest_opp = opp->required_opps[i];
dev_pm_opp_get(dest_opp);
dest_opp = dev_pm_opp_get(opp->required_opps[i]);
break;
}
}

7
include/linux/pm_opp.h
View File

@@ -161,7 +161,7 @@ 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);
struct dev_pm_opp *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);
@@ -345,7 +345,10 @@ 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 struct dev_pm_opp *dev_pm_opp_get(struct dev_pm_opp *opp)
{
return opp;
}
static inline void dev_pm_opp_put(struct dev_pm_opp *opp) {}