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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>
This commit is contained in:
Tomasz Figa 2012-11-22 00:09:27 +01:00 committed by Rafael J. Wysocki
parent c0e61cb151
commit fd06a20852
1 changed files with 5 additions and 2 deletions
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7
drivers/cpufreq/exynos-cpufreq.c
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@ -100,7 +100,8 @@ static int exynos_target(struct cpufreq_policy *policy,
}
arm_volt = volt_table[index];
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
for_each_cpu(freqs.cpu, policy->cpus)
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
/* When the new frequency is higher than current frequency */
if ((freqs.new > freqs.old) && !safe_arm_volt) {
@ -115,7 +116,8 @@ static int exynos_target(struct cpufreq_policy *policy,
if (freqs.new != freqs.old)
exynos_info->set_freq(old_index, index);
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
for_each_cpu(freqs.cpu, policy->cpus)
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
/* When the new frequency is lower than current frequency */
if ((freqs.new < freqs.old) ||
@ -235,6 +237,7 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
cpumask_copy(policy->related_cpus, cpu_possible_mask);
cpumask_copy(policy->cpus, cpu_online_mask);
} else {
policy->shared_type = CPUFREQ_SHARED_TYPE_ANY;
cpumask_setall(policy->cpus);
}