linux-kernel - [PATCH 2/8] cpufreq: dt: Use auto-registration for energy model

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Message-Id: <f66047fca65a2d368e881d62e1623dbeef2eacd2.1628579170.git.viresh.kumar@linaro.org>
Date:   Tue, 10 Aug 2021 13:06:49 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Rafael Wysocki <rjw@...ysocki.net>,
        Vincent Donnefort <vincent.donnefort@....com>,
        lukasz.luba@....com, Viresh Kumar <viresh.kumar@...aro.org>
Cc:     linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/8] cpufreq: dt: Use auto-registration for energy model

Use the CPUFREQ_REGISTER_WITH_EM flag to allow cpufreq core to
automatically register with the energy model.

This allows removal of boiler plate code from the driver and fixes the
unregistration part as well.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 drivers/cpufreq/cpufreq-dt.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index ece52863ba62..b727006e85af 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -143,8 +143,6 @@ static int cpufreq_init(struct cpufreq_policy *policy)
 		cpufreq_dt_attr[1] = &cpufreq_freq_attr_scaling_boost_freqs;
 	}
 
-	dev_pm_opp_of_register_em(cpu_dev, policy->cpus);
-
 	return 0;
 
 out_clk_put:
@@ -176,7 +174,8 @@ static int cpufreq_exit(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver dt_cpufreq_driver = {
 	.flags = CPUFREQ_NEED_INITIAL_FREQ_CHECK |
-		 CPUFREQ_IS_COOLING_DEV,
+		 CPUFREQ_IS_COOLING_DEV |
+		 CPUFREQ_REGISTER_WITH_EM,
 	.verify = cpufreq_generic_frequency_table_verify,
 	.target_index = set_target,
 	.get = cpufreq_generic_get,
-- 
2.31.1.272.g89b43f80a514