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authorPaul Mackerras <paulus@samba.org>2007-05-07 23:37:51 -0400
committerPaul Mackerras <paulus@samba.org>2007-05-07 23:37:51 -0400
commit02bbc0f09c90cefdb2837605c96a66c5ce4ba2e1 (patch)
tree04ef573cd4de095c500c9fc3477f4278c0b36300 /drivers/cpufreq/cpufreq.c
parent7487a2245b8841c77ba9db406cf99a483b9334e9 (diff)
parent5b94f675f57e4ff16c8fda09088d7480a84dcd91 (diff)
Merge branch 'linux-2.6'
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
-rw-r--r--drivers/cpufreq/cpufreq.c47
1 files changed, 8 insertions, 39 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 3162010900c9..893dbaf386fb 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -768,6 +768,9 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
768 unlock_policy_rwsem_write(cpu); 768 unlock_policy_rwsem_write(cpu);
769 goto err_out; 769 goto err_out;
770 } 770 }
771 policy->user_policy.min = policy->cpuinfo.min_freq;
772 policy->user_policy.max = policy->cpuinfo.max_freq;
773 policy->user_policy.governor = policy->governor;
771 774
772#ifdef CONFIG_SMP 775#ifdef CONFIG_SMP
773 for_each_cpu_mask(j, policy->cpus) { 776 for_each_cpu_mask(j, policy->cpus) {
@@ -858,10 +861,13 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
858 861
859 policy->governor = NULL; /* to assure that the starting sequence is 862 policy->governor = NULL; /* to assure that the starting sequence is
860 * run in cpufreq_set_policy */ 863 * run in cpufreq_set_policy */
861 unlock_policy_rwsem_write(cpu);
862 864
863 /* set default policy */ 865 /* set default policy */
864 ret = cpufreq_set_policy(&new_policy); 866 ret = __cpufreq_set_policy(policy, &new_policy);
867 policy->user_policy.policy = policy->policy;
868
869 unlock_policy_rwsem_write(cpu);
870
865 if (ret) { 871 if (ret) {
866 dprintk("setting policy failed\n"); 872 dprintk("setting policy failed\n");
867 goto err_out_unregister; 873 goto err_out_unregister;
@@ -1620,43 +1626,6 @@ error_out:
1620} 1626}
1621 1627
1622/** 1628/**
1623 * cpufreq_set_policy - set a new CPUFreq policy
1624 * @policy: policy to be set.
1625 *
1626 * Sets a new CPU frequency and voltage scaling policy.
1627 */
1628int cpufreq_set_policy(struct cpufreq_policy *policy)
1629{
1630 int ret = 0;
1631 struct cpufreq_policy *data;
1632
1633 if (!policy)
1634 return -EINVAL;
1635
1636 data = cpufreq_cpu_get(policy->cpu);
1637 if (!data)
1638 return -EINVAL;
1639
1640 if (unlikely(lock_policy_rwsem_write(policy->cpu)))
1641 return -EINVAL;
1642
1643
1644 ret = __cpufreq_set_policy(data, policy);
1645 data->user_policy.min = data->min;
1646 data->user_policy.max = data->max;
1647 data->user_policy.policy = data->policy;
1648 data->user_policy.governor = data->governor;
1649
1650 unlock_policy_rwsem_write(policy->cpu);
1651
1652 cpufreq_cpu_put(data);
1653
1654 return ret;
1655}
1656EXPORT_SYMBOL(cpufreq_set_policy);
1657
1658
1659/**
1660 * cpufreq_update_policy - re-evaluate an existing cpufreq policy 1629 * cpufreq_update_policy - re-evaluate an existing cpufreq policy
1661 * @cpu: CPU which shall be re-evaluated 1630 * @cpu: CPU which shall be re-evaluated
1662 * 1631 *