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| author | Dietmar Eggemann | 2019-02-04 12:09:51 +0100 |
|---|---|---|
| committer | Viresh Kumar | 2019-02-07 05:25:11 +0100 |
| commit | 2516d670052d5c3eb3253e5c815ff85bf0daf35a (patch) | |
| tree | d33b4f416c9c6ad1f789051da067129c8cef405e /drivers/cpufreq/arm_big_little.c | |
| parent | cpufreq: scpi: Register an Energy Model (diff) | |
| download | kernel-qcow2-linux-2516d670052d5c3eb3253e5c815ff85bf0daf35a.tar.gz kernel-qcow2-linux-2516d670052d5c3eb3253e5c815ff85bf0daf35a.tar.xz kernel-qcow2-linux-2516d670052d5c3eb3253e5c815ff85bf0daf35a.zip | |
cpufreq: arm_big_little: Register an Energy Model
Now that PM_OPP provides a helper function to estimate the power
consumed by CPUs, make sure to try and register an Energy Model (EM)
from the arm_big_little CPUFreq driver, hence ensuring interested
subsystems (the task scheduler, for example) can make use of that
information when available.
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/cpufreq/arm_big_little.c')
| -rw-r--r-- | drivers/cpufreq/arm_big_little.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c index cf62a1f64dd7..7fe52fcddcf1 100644 --- a/drivers/cpufreq/arm_big_little.c +++ b/drivers/cpufreq/arm_big_little.c @@ -487,6 +487,8 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy) policy->cpuinfo.transition_latency = arm_bL_ops->get_transition_latency(cpu_dev); + dev_pm_opp_of_register_em(policy->cpus); + if (is_bL_switching_enabled()) per_cpu(cpu_last_req_freq, policy->cpu) = clk_get_cpu_rate(policy->cpu); |