cpufreq: exynos: Broadcast frequency change notifications for all cores
On Exynos SoCs all cores share the same frequency setting, so changing frequency of one core will affect rest of cores. This patch modifies the exynos-cpufreq driver to inform cpufreq core about this behavior and broadcast frequency change notifications for all cores. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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@ -100,7 +100,8 @@ static int exynos_target(struct cpufreq_policy *policy,
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}
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arm_volt = volt_table[index];
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cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
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for_each_cpu(freqs.cpu, policy->cpus)
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cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
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/* When the new frequency is higher than current frequency */
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if ((freqs.new > freqs.old) && !safe_arm_volt) {
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@ -115,7 +116,8 @@ static int exynos_target(struct cpufreq_policy *policy,
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if (freqs.new != freqs.old)
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exynos_info->set_freq(old_index, index);
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cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
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for_each_cpu(freqs.cpu, policy->cpus)
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cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
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/* When the new frequency is lower than current frequency */
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if ((freqs.new < freqs.old) ||
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@ -235,6 +237,7 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
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cpumask_copy(policy->related_cpus, cpu_possible_mask);
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cpumask_copy(policy->cpus, cpu_online_mask);
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} else {
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policy->shared_type = CPUFREQ_SHARED_TYPE_ANY;
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cpumask_setall(policy->cpus);
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}
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