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thermal: cpu_cooling: don't store cpu_dev in cpufreq_cdev
'cpu_dev' is used by only one function, get_static_power(), and it wouldn't be time consuming to get the cpu device structure within it. This would help removing cpu_dev from struct cpufreq_cooling_device. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Tested-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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@ -87,7 +87,6 @@ struct time_in_idle {
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* @node: list_head to link all cpufreq_cooling_device together.
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* @last_load: load measured by the latest call to cpufreq_get_requested_power()
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* @idle_time: idle time stats
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* @cpu_dev: the cpu_device of policy->cpu.
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* @plat_get_static_power: callback to calculate the static power
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*
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* This structure is required for keeping information of each registered
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@ -104,7 +103,6 @@ struct cpufreq_cooling_device {
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struct list_head node;
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u32 last_load;
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struct time_in_idle *idle_time;
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struct device *cpu_dev;
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get_static_t plat_get_static_power;
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};
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@ -259,8 +257,6 @@ static int update_freq_table(struct cpufreq_cooling_device *cpufreq_cdev,
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freq_table[i].power = power;
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}
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cpufreq_cdev->cpu_dev = dev;
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return 0;
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}
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@ -342,19 +338,22 @@ static int get_static_power(struct cpufreq_cooling_device *cpufreq_cdev,
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{
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struct dev_pm_opp *opp;
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unsigned long voltage;
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struct cpumask *cpumask = cpufreq_cdev->policy->related_cpus;
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struct cpufreq_policy *policy = cpufreq_cdev->policy;
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struct cpumask *cpumask = policy->related_cpus;
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unsigned long freq_hz = freq * 1000;
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struct device *dev;
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if (!cpufreq_cdev->plat_get_static_power || !cpufreq_cdev->cpu_dev) {
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if (!cpufreq_cdev->plat_get_static_power) {
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*power = 0;
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return 0;
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}
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opp = dev_pm_opp_find_freq_exact(cpufreq_cdev->cpu_dev, freq_hz,
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true);
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dev = get_cpu_device(policy->cpu);
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WARN_ON(!dev);
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opp = dev_pm_opp_find_freq_exact(dev, freq_hz, true);
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if (IS_ERR(opp)) {
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dev_warn_ratelimited(cpufreq_cdev->cpu_dev,
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"Failed to find OPP for frequency %lu: %ld\n",
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dev_warn_ratelimited(dev, "Failed to find OPP for frequency %lu: %ld\n",
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freq_hz, PTR_ERR(opp));
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return -EINVAL;
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}
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@ -363,8 +362,7 @@ static int get_static_power(struct cpufreq_cooling_device *cpufreq_cdev,
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dev_pm_opp_put(opp);
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if (voltage == 0) {
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dev_err_ratelimited(cpufreq_cdev->cpu_dev,
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"Failed to get voltage for frequency %lu\n",
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dev_err_ratelimited(dev, "Failed to get voltage for frequency %lu\n",
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freq_hz);
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return -EINVAL;
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}
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