| Message ID | a7617cdbfa02db20572d1d06af40132d475649bd.1523273291.git.viresh.kumar@linaro.org |
|---|---|
| State | Accepted |
| Commit | e2f4b5f8dc59c28605a320ea923905e519fd2ca7 |
| Headers | show |
| Series | PM / genpd & OPP: Parse performance state from DT | expand |
On 9 April 2018 at 13:43, Viresh Kumar <viresh.kumar@linaro.org> wrote: > This adds a new helper to let the power domain drivers to access > opp->np, so that they can read platform specific properties from the > node. > > Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> > Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> > Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Kind regards Uffe > --- > drivers/opp/of.c | 19 +++++++++++++++++++ > include/linux/pm_opp.h | 5 +++++ > 2 files changed, 24 insertions(+) > > 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 @@ struct dev_pm_opp *of_dev_pm_opp_find_required_opp(struct device *dev, > 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__ */ > -- > 2.15.0.194.g9af6a3dea062 >
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 @@ struct dev_pm_opp *of_dev_pm_opp_find_required_opp(struct device *dev, 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__ */