OPP: refactor dev_pm_opp_of_register_em() and update related drivers

The Energy Model framework supports not only CPU devices. Drop the CPU specific interface with cpumask and add struct device. Add also a return value, user might use it. This new interface provides easy way to create a simple Energy Model, which then might be used by e.g. thermal subsystem.

Lukasz Luba committed 6 years ago

Commit 0e0ffa81 parent 7b7570a9 files · +65 −35Browse files

Showing the changes to include/linux (1 of 9 files). Show all

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include/linux/pm_opp.h+13−2

 #ifndef __LINUX_OPP_H__
 #define __LINUX_OPP_H__
+#include <linux/energy_model.h>
 #include <linux/err.h>
 #include <linux/notifier.h>
 struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp);
 int of_get_required_opp_performance_state(struct device_node *np, int index);
 int dev_pm_opp_of_find_icc_paths(struct device *dev, struct opp_table *opp_table);
-void dev_pm_opp_of_register_em(struct cpumask *cpus);
+int dev_pm_opp_of_register_em(struct device *dev, struct cpumask *cpus);
+static inline void dev_pm_opp_of_unregister_em(struct device *dev)
+{
+	em_dev_unregister_perf_domain(dev);
+}
 #else
 static inline int dev_pm_opp_of_add_table(struct device *dev)
 {
 	return NULL;
 }
-static inline void dev_pm_opp_of_register_em(struct cpumask *cpus)
+static inline int dev_pm_opp_of_register_em(struct device *dev,
+					    struct cpumask *cpus)
+{
+	return -ENOTSUPP;
+}
+static inline void dev_pm_opp_of_unregister_em(struct device *dev)
 {
 }