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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>
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1 changed files with 2 additions and 12 deletions
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@ -22,7 +22,6 @@
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#include <linux/cpu.h>
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#include <linux/cpufreq.h>
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#include <linux/cpumask.h>
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#include <linux/cpu_cooling.h>
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#include <linux/export.h>
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#include <linux/module.h>
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#include <linux/of_platform.h>
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@ -34,7 +33,6 @@
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struct scpi_data {
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struct clk *clk;
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struct device *cpu_dev;
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struct thermal_cooling_device *cdev;
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};
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static struct scpi_ops *scpi_ops;
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@ -186,7 +184,6 @@ static int scpi_cpufreq_exit(struct cpufreq_policy *policy)
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{
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struct scpi_data *priv = policy->driver_data;
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cpufreq_cooling_unregister(priv->cdev);
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clk_put(priv->clk);
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dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table);
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kfree(priv);
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@ -195,23 +192,16 @@ static int scpi_cpufreq_exit(struct cpufreq_policy *policy)
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return 0;
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}
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static void scpi_cpufreq_ready(struct cpufreq_policy *policy)
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{
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struct scpi_data *priv = policy->driver_data;
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priv->cdev = of_cpufreq_cooling_register(policy);
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}
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static struct cpufreq_driver scpi_cpufreq_driver = {
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.name = "scpi-cpufreq",
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.flags = CPUFREQ_STICKY | CPUFREQ_HAVE_GOVERNOR_PER_POLICY |
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CPUFREQ_NEED_INITIAL_FREQ_CHECK,
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CPUFREQ_NEED_INITIAL_FREQ_CHECK |
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CPUFREQ_IS_COOLING_DEV,
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.verify = cpufreq_generic_frequency_table_verify,
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.attr = cpufreq_generic_attr,
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.get = scpi_cpufreq_get_rate,
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.init = scpi_cpufreq_init,
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.exit = scpi_cpufreq_exit,
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.ready = scpi_cpufreq_ready,
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.target_index = scpi_cpufreq_set_target,
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};
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