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Commit 61dcd890 authored by Quentin Perret's avatar Quentin Perret
Browse files

ANDROID: cpufreq: scpi: Register an Energy Model 



The Energy Model framework provides an API to register the active power
of CPUs. This commit calls this API from the scpi-cpufreq driver which
uses the power estimation helper from PM_OPP.

Change-Id: I113fa2edf8201c1272c9fb5a0c6c39622ae53f94
Signed-off-by: default avatarQuentin Perret <quentin.perret@arm.com>
parent d326aa36

drivers/cpufreq/scpi-cpufreq.c

+7 −1
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ 
#include <linux/cpufreq.h>

#include <linux/cpumask.h>

#include <linux/cpu_cooling.h>

#include <linux/energy_model.h>

#include <linux/export.h>

#include <linux/module.h>

#include <linux/of_platform.h>
@@ -98,11 +99,12 @@ scpi_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask) 


static int scpi_cpufreq_init(struct cpufreq_policy *policy)

{

	int ret;

	int ret, nr_opp;

	unsigned int latency;

	struct device *cpu_dev;

	struct scpi_data *priv;

	struct cpufreq_frequency_table *freq_table;

	struct em_data_callback em_cb = EM_DATA_CB(of_dev_pm_opp_get_cpu_power);



	cpu_dev = get_cpu_device(policy->cpu);

	if (!cpu_dev) {
@@ -135,6 +137,7 @@ static int scpi_cpufreq_init(struct cpufreq_policy *policy) 
		ret = -EPROBE_DEFER;

		goto out_free_opp;

	}

	nr_opp = ret;



	priv = kzalloc(sizeof(*priv), GFP_KERNEL);

	if (!priv) {
@@ -170,6 +173,9 @@ static int scpi_cpufreq_init(struct cpufreq_policy *policy) 
	policy->cpuinfo.transition_latency = latency;



	policy->fast_switch_possible = false;



	em_register_perf_domain(policy->cpus, nr_opp, &em_cb);



	return 0;



out_free_cpufreq_table: