diff options
| -rw-r--r-- | drivers/opp/of.c | 19 | ||||
| -rw-r--r-- | include/linux/pm_opp.h | 5 |
2 files changed, 24 insertions, 0 deletions
diff --git a/drivers/opp/of.c b/drivers/opp/of.c index 6380ec3d695b..de41e68b780f 100644 --- a/drivers/opp/of.c +++ b/drivers/opp/of.c @@ -727,3 +727,22 @@ put_opp_table: return opp; } EXPORT_SYMBOL_GPL(of_dev_pm_opp_find_required_opp); + +/** + * dev_pm_opp_get_of_node() - Gets the DT node corresponding to an opp + * @opp: opp for which DT node has to be returned for + * + * Return: DT node corresponding to the opp, else 0 on success. + * + * The caller needs to put the node with of_node_put() after using it. + */ +struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp) +{ + if (IS_ERR_OR_NULL(opp)) { + pr_err("%s: Invalid parameters\n", __func__); + return NULL; + } + + return of_node_get(opp->np); +} +EXPORT_SYMBOL_GPL(dev_pm_opp_get_of_node); diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 70686f434c13..8fd34c4398b2 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -310,6 +310,7 @@ void dev_pm_opp_of_cpumask_remove_table(const struct cpumask *cpumask); int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask); struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev); struct dev_pm_opp *of_dev_pm_opp_find_required_opp(struct device *dev, struct device_node *np); +struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp); #else static inline int dev_pm_opp_of_add_table(struct device *dev) { @@ -348,6 +349,10 @@ static inline struct dev_pm_opp *of_dev_pm_opp_find_required_opp(struct device * { return NULL; } +static inline struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp) +{ + return NULL; +} #endif #endif /* __LINUX_OPP_H__ */ |