From: Quentin Perret <quentin.perret@arm.com>
To: viresh.kumar@linaro.org, sudeep.holla@arm.com, rjw@rjwysocki.net,
nm@ti.com, sboyd@kernel.org, mka@chromium.org
Cc: quentin.perret@arm.com, dietmar.eggemann@arm.com,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org
Subject: [PATCH v4 2/5] cpufreq: dt: Register an Energy Model
Date: Mon, 4 Feb 2019 11:09:49 +0000 [thread overview]
Message-ID: <20190204110952.16025-3-quentin.perret@arm.com> (raw)
In-Reply-To: <20190204110952.16025-1-quentin.perret@arm.com>
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 cpufreq-dt, hence ensuring interested subsystems (the task
scheduler, for example) can make use of that information when available.
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
---
drivers/cpufreq/cpufreq-dt.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index e58bfcb1169e..d74e0402512a 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -280,6 +280,8 @@ static int cpufreq_init(struct cpufreq_policy *policy)
policy->cpuinfo.transition_latency = transition_latency;
policy->dvfs_possible_from_any_cpu = true;
+ dev_pm_opp_of_register_em(policy->cpus);
+
return 0;
out_free_cpufreq_table:
--
2.20.1
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next prev parent reply other threads:[~2019-02-04 11:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-04 11:09 [PATCH v4 0/5] Register an Energy Model for Arm reference platforms Quentin Perret
2019-02-04 11:09 ` [PATCH v4 1/5] PM / OPP: Introduce a power estimation helper Quentin Perret
2019-02-04 18:03 ` Matthias Kaehlcke
2019-02-04 18:21 ` Quentin Perret
2019-02-04 11:09 ` Quentin Perret [this message]
2019-02-04 11:09 ` [PATCH v4 3/5] cpufreq: scpi: Register an Energy Model Quentin Perret
2019-02-04 11:09 ` [PATCH v4 4/5] cpufreq: arm_big_little: " Quentin Perret
2019-02-04 11:09 ` [PATCH v4 5/5] cpufreq: scmi: " Quentin Perret
2019-02-05 4:55 ` [PATCH v4 0/5] Register an Energy Model for Arm reference platforms Viresh Kumar
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