PM / OPP: Expose _of_get_opp_desc_node as dev_pm_opp API
Rename _of_get_opp_desc_node to dev_pm_opp_of_get_opp_desc_node and add it to include/linux/pm_opp.h to allow other drivers, such as platform OPP and cpufreq drivers, to make use of it. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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@ -243,7 +243,7 @@ void dev_pm_opp_of_remove_table(struct device *dev)
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EXPORT_SYMBOL_GPL(dev_pm_opp_of_remove_table);
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EXPORT_SYMBOL_GPL(dev_pm_opp_of_remove_table);
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/* Returns opp descriptor node for a device, caller must do of_node_put() */
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/* Returns opp descriptor node for a device, caller must do of_node_put() */
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static struct device_node *_of_get_opp_desc_node(struct device *dev)
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struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev)
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{
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{
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/*
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/*
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* There should be only ONE phandle present in "operating-points-v2"
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* There should be only ONE phandle present in "operating-points-v2"
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@ -252,6 +252,7 @@ static struct device_node *_of_get_opp_desc_node(struct device *dev)
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return of_parse_phandle(dev->of_node, "operating-points-v2", 0);
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return of_parse_phandle(dev->of_node, "operating-points-v2", 0);
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}
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}
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EXPORT_SYMBOL_GPL(dev_pm_opp_of_get_opp_desc_node);
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/**
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/**
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* _opp_add_static_v2() - Allocate static OPPs (As per 'v2' DT bindings)
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* _opp_add_static_v2() - Allocate static OPPs (As per 'v2' DT bindings)
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@ -478,7 +479,7 @@ int dev_pm_opp_of_add_table(struct device *dev)
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* OPPs have two version of bindings now. The older one is deprecated,
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* OPPs have two version of bindings now. The older one is deprecated,
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* try for the new binding first.
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* try for the new binding first.
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*/
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*/
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opp_np = _of_get_opp_desc_node(dev);
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opp_np = dev_pm_opp_of_get_opp_desc_node(dev);
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if (!opp_np) {
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if (!opp_np) {
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/*
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/*
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* Try old-deprecated bindings for backward compatibility with
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* Try old-deprecated bindings for backward compatibility with
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@ -570,7 +571,7 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev,
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int cpu, ret = 0;
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int cpu, ret = 0;
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/* Get OPP descriptor node */
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/* Get OPP descriptor node */
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np = _of_get_opp_desc_node(cpu_dev);
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np = dev_pm_opp_of_get_opp_desc_node(cpu_dev);
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if (!np) {
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if (!np) {
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dev_dbg(cpu_dev, "%s: Couldn't find opp node.\n", __func__);
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dev_dbg(cpu_dev, "%s: Couldn't find opp node.\n", __func__);
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return -ENOENT;
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return -ENOENT;
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@ -595,7 +596,7 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev,
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}
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}
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/* Get OPP descriptor node */
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/* Get OPP descriptor node */
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tmp_np = _of_get_opp_desc_node(tcpu_dev);
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tmp_np = dev_pm_opp_of_get_opp_desc_node(tcpu_dev);
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if (!tmp_np) {
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if (!tmp_np) {
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dev_err(tcpu_dev, "%s: Couldn't find opp node.\n",
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dev_err(tcpu_dev, "%s: Couldn't find opp node.\n",
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__func__);
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__func__);
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@ -288,6 +288,7 @@ void dev_pm_opp_of_remove_table(struct device *dev);
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int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask);
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int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask);
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void dev_pm_opp_of_cpumask_remove_table(const struct cpumask *cpumask);
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void dev_pm_opp_of_cpumask_remove_table(const struct cpumask *cpumask);
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int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask);
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int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask);
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struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev);
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#else
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#else
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static inline int dev_pm_opp_of_add_table(struct device *dev)
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static inline int dev_pm_opp_of_add_table(struct device *dev)
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{
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{
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@ -311,6 +312,11 @@ static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct
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{
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{
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return -ENOTSUPP;
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return -ENOTSUPP;
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}
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}
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static inline struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev)
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{
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return NULL;
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}
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#endif
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#endif
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#endif /* __LINUX_OPP_H__ */
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#endif /* __LINUX_OPP_H__ */
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