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