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

@@ -11,6 +11,7 @@ · 10 unmodified lines
11	11	#ifndef __LINUX_OPP_H__
12	12	#define __LINUX_OPP_H__
13	13
	14	+#include <linux/energy_model.h>
14	15	#include <linux/err.h>
15	16	#include <linux/notifier.h>
16	17
@@ -373,7 +374,11 @@ struct device_node dev_pm_opp_of_get_opp_desc_node(struct device dev); · 356 unmodified lines
373	374	struct device_node dev_pm_opp_get_of_node(struct dev_pm_opp opp);
374	375	int of_get_required_opp_performance_state(struct device_node *np, int index);
375	376	int dev_pm_opp_of_find_icc_paths(struct device dev, struct opp_table opp_table);
376		−void dev_pm_opp_of_register_em(struct cpumask *cpus);
	377	+int dev_pm_opp_of_register_em(struct device dev, struct cpumask cpus);
	378	+static inline void dev_pm_opp_of_unregister_em(struct device *dev)
	379	+{
	380	+ em_dev_unregister_perf_domain(dev);
	381	+}
377	382	#else
378	383	static inline int dev_pm_opp_of_add_table(struct device *dev)
379	384	{
@@ -413,7 +418,13 @@ static inline struct device_node dev_pm_opp_get_of_node(struct dev_pm_opp opp) · 33 unmodified lines
413	418	return NULL;
414	419	}
415	420
416		−static inline void dev_pm_opp_of_register_em(struct cpumask *cpus)
	421	+static inline int dev_pm_opp_of_register_em(struct device *dev,
	422	+ struct cpumask *cpus)
	423	+{
	424	+ return -ENOTSUPP;
	425	+}
	426	+
	427	+static inline void dev_pm_opp_of_unregister_em(struct device *dev)
417	428	{
418	429	}
419	430