kybaaz/linux-xiaomi-chiron
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

OPP: refactor dev_pm_opp_of_register_em() and update related drivers

Browse source 
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.

Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lukasz Luba 2020-05-27 10:58:54 +01:00 • committed by Rafael J. Wysocki
parent 7b7570ad0d
commit 0e0ffa855d
9 changed files with 65 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

15
include/linux/pm_opp.h
View file

@ -11,6 +11,7 @@
#ifndef __LINUX_OPP_H__
#define __LINUX_OPP_H__
#include <linux/energy_model.h>
#include <linux/err.h>
#include <linux/notifier.h>
@ -373,7 +374,11 @@ struct device_node *dev_pm_opp_of_get_opp_desc_node(struct device *dev);
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)
{
@ -413,7 +418,13 @@ static inline struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp)
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)
{
}