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cpufreq: scpi: Use auto-registration of thermal cooling device 

Use the CPUFREQ_IS_COOLING_DEV flag to allow cpufreq core to
automatically register as a thermal cooling device.

This allows removal of boiler plate code from the driver.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
hifive-unleashed-5.1
Amit Kucheria 2019-01-29 10:25:15 +05:30 committed by Rafael J. Wysocki
parent 5da7af9a94
commit cb772b8ce4
1 changed files with 2 additions and 12 deletions
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14
drivers/cpufreq/scpi-cpufreq.c
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@ -22,7 +22,6 @@
#include <linux/cpu.h>
#include <linux/cpufreq.h>
#include <linux/cpumask.h>
#include <linux/cpu_cooling.h>
#include <linux/export.h>
#include <linux/module.h>
#include <linux/of_platform.h>
@ -34,7 +33,6 @@
struct scpi_data {
struct clk *clk;
struct device *cpu_dev;
struct thermal_cooling_device *cdev;
};
static struct scpi_ops *scpi_ops;
@ -186,7 +184,6 @@ static int scpi_cpufreq_exit(struct cpufreq_policy *policy)
{
struct scpi_data *priv = policy->driver_data;
cpufreq_cooling_unregister(priv->cdev);
clk_put(priv->clk);
dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table);
kfree(priv);
@ -195,23 +192,16 @@ static int scpi_cpufreq_exit(struct cpufreq_policy *policy)
return 0;
}
static void scpi_cpufreq_ready(struct cpufreq_policy *policy)
{
struct scpi_data *priv = policy->driver_data;
priv->cdev = of_cpufreq_cooling_register(policy);
}
static struct cpufreq_driver scpi_cpufreq_driver = {
.name = "scpi-cpufreq",
.flags = CPUFREQ_STICKY | CPUFREQ_HAVE_GOVERNOR_PER_POLICY |
CPUFREQ_NEED_INITIAL_FREQ_CHECK,
CPUFREQ_NEED_INITIAL_FREQ_CHECK |
CPUFREQ_IS_COOLING_DEV,
.verify = cpufreq_generic_frequency_table_verify,
.attr = cpufreq_generic_attr,
.get = scpi_cpufreq_get_rate,
.init = scpi_cpufreq_init,
.exit = scpi_cpufreq_exit,
.ready = scpi_cpufreq_ready,
.target_index = scpi_cpufreq_set_target,
};