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| author | Lukasz Luba <lukasz.luba@arm.com> | 2024-04-03 18:49:04 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-04-08 17:05:14 +0300 |
| commit | e3ac0f367d5806af09d2070bb7951af2f59d1f52 (patch) | |
| tree | 05b300107304715a0f97eac8b9030bec0dfcd74d /include/linux/pm_opp.h | |
| parent | fec50db7033ea478773b159e0e2efb135270e3b7 (diff) | |
| download | linux-e3ac0f367d5806af09d2070bb7951af2f59d1f52.tar.xz | |
OPP: OF: Export dev_opp_pm_calc_power() for usage from EM
There are device drivers which can modify voltage values for OPPs. It
could be due to the chip binning and those drivers have specific chip
knowledge about it. This adjustment can happen after Energy Model is
registered, thus EM can have stale data about power.
Export dev_opp_pm_calc_power() which can be used by Energy Model to
calculate new power with the new voltage for OPPs.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/pm_opp.h')
| -rw-r--r-- | include/linux/pm_opp.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 065a47382302..dd7c8441af42 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -476,6 +476,8 @@ 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); int dev_pm_opp_of_register_em(struct device *dev, struct cpumask *cpus); +int dev_pm_opp_calc_power(struct device *dev, unsigned long *uW, + unsigned long *kHz); static inline void dev_pm_opp_of_unregister_em(struct device *dev) { em_dev_unregister_perf_domain(dev); @@ -539,6 +541,12 @@ static inline void dev_pm_opp_of_unregister_em(struct device *dev) { } +static inline int dev_pm_opp_calc_power(struct device *dev, unsigned long *uW, + unsigned long *kHz) +{ + return -EOPNOTSUPP; +} + static inline int of_get_required_opp_performance_state(struct device_node *np, int index) { return -EOPNOTSUPP; |