| Message ID | 20180316040824.21472-2-rnayak@codeaurora.org |
|---|---|
| State | New |
| Headers | show |
| Series | [1/7] PM / OPP: Add dev_pm_opp_get_of_node() | expand |
On 07-04-18, 06:00, Stephen Boyd wrote: > Quoting Rajendra Nayak (2018-03-15 21:08:18) > > From: Viresh Kumar <viresh.kumar@linaro.org> > > > > 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: Viresh Kumar <viresh.kumar@linaro.org> > > Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> > > --- > > Are there two versions of this patch floating around? Yeah, I will carry this patch in my series now going forward. > > 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 21265af55117..b17715bc3c0a 100644 > > --- a/drivers/opp/of.c > > +++ b/drivers/opp/of.c > > @@ -736,3 +736,22 @@ 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 of_node_put() after using it. > > put the node with of_node_put() Fixed it up, thanks. -- viresh
diff --git a/drivers/opp/of.c b/drivers/opp/of.c index 21265af55117..b17715bc3c0a 100644 --- a/drivers/opp/of.c +++ b/drivers/opp/of.c @@ -736,3 +736,22 @@ 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 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 528a7d9cf2ef..099b31960dec 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -300,6 +300,7 @@ 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) { @@ -338,6 +339,10 @@ 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__ */