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Merge "qcom-cpufreq: Restore CPU frequency during resume"

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Linux Build Service Account 2014-12-12 08:49:12 -08:00 committed by Gerrit - the friendly Code Review server
parent 2c4f5fbe7f 61043ba2cc
commit 35af99ef39
1 changed files with 24 additions and 1 deletions
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25
drivers/cpufreq/qcom-cpufreq.c
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@ -262,12 +262,35 @@ static int msm_cpufreq_suspend(void)
static int msm_cpufreq_resume(void)
{
int cpu;
int cpu, ret;
struct cpufreq_policy policy;
for_each_possible_cpu(cpu) {
per_cpu(cpufreq_suspend, cpu).device_suspended = 0;
}
/*
* Freq request might be rejected during suspend, resulting
* in policy->cur violating min/max constraint.
* Correct the frequency as soon as possible.
*/
get_online_cpus();
for_each_online_cpu(cpu) {
ret = cpufreq_get_policy(&policy, cpu);
if (ret)
continue;
if (policy.cur <= policy.max && policy.cur >= policy.min)
continue;
ret = cpufreq_update_policy(cpu);
if (ret)
pr_info("cpufreq: Current frequency violates policy min/max for CPU%d\n",
cpu);
else
pr_info("cpufreq: Frequency violation fixed for CPU%d\n",
cpu);
}
put_online_cpus();
return NOTIFY_DONE;
}