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cpufreq: imx6q: 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: 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 10:25:10 +05:30 committed by Rafael J. Wysocki
parent 4c5ff1c832
commit 4b49886926
1 changed files with 2 additions and 22 deletions
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24
drivers/cpufreq/imx6q-cpufreq.c
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@ -9,7 +9,6 @@
#include <linux/clk.h>
#include <linux/cpu.h>
#include <linux/cpufreq.h>
#include <linux/cpu_cooling.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/nvmem-consumer.h>
@ -52,7 +51,6 @@ static struct clk_bulk_data clks[] = {
};
static struct device *cpu_dev;
static struct thermal_cooling_device *cdev;
static bool free_opp;
static struct cpufreq_frequency_table *freq_table;
static unsigned int max_freq;
@ -193,16 +191,6 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index)
return 0;
}
static void imx6q_cpufreq_ready(struct cpufreq_policy *policy)
{
cdev = of_cpufreq_cooling_register(policy);
if (!cdev)
dev_err(cpu_dev,
"running cpufreq without cooling device: %ld\n",
PTR_ERR(cdev));
}
static int imx6q_cpufreq_init(struct cpufreq_policy *policy)
{
int ret;
@ -214,22 +202,14 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy)
return ret;
}
static int imx6q_cpufreq_exit(struct cpufreq_policy *policy)
{
cpufreq_cooling_unregister(cdev);
return 0;
}
static struct cpufreq_driver imx6q_cpufreq_driver = {
.flags = CPUFREQ_NEED_INITIAL_FREQ_CHECK,
.flags = CPUFREQ_NEED_INITIAL_FREQ_CHECK |
CPUFREQ_IS_COOLING_DEV,
.verify = cpufreq_generic_frequency_table_verify,
.target_index = imx6q_set_target,
.get = cpufreq_generic_get,
.init = imx6q_cpufreq_init,
.exit = imx6q_cpufreq_exit,
.name = "imx6q-cpufreq",
.ready = imx6q_cpufreq_ready,
.attr = cpufreq_generic_attr,
.suspend = cpufreq_generic_suspend,
};