diff mbox

[2/2] cpufreq: preserve user_policy across suspend/resume

Message ID 03303e46795a89272ba66d5fa230cbfdb9a177a9.1387848958.git.viresh.kumar@linaro.org
State New
Headers show

Commit Message

Viresh Kumar Dec. 24, 2013, 1:41 a.m. UTC 
In __cpufreq_add_dev() we are reinitializing user_policy with default values and
hence would loose values of user_policy.{min|max|policy|governor} fields.

Preserve them by not overriding these for suspend/resume.

Reported-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/cpufreq.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)
diff mbox

Patch

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 0a48e71..59e918e 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -839,9 +839,6 @@  static void cpufreq_init_policy(struct cpufreq_policy *policy)
 
 	/* set default policy */
 	ret = cpufreq_set_policy(policy, &new_policy);
-	policy->user_policy.policy = policy->policy;
-	policy->user_policy.governor = policy->governor;
-
 	if (ret) {
 		pr_debug("setting policy failed\n");
 		if (cpufreq_driver->exit)
@@ -1077,8 +1074,10 @@  static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif,
 	 */
 	cpumask_and(policy->cpus, policy->cpus, cpu_online_mask);
 
-	policy->user_policy.min = policy->min;
-	policy->user_policy.max = policy->max;
+	if (!frozen) {
+		policy->user_policy.min = policy->min;
+		policy->user_policy.max = policy->max;
+	}
 
 	blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
 				     CPUFREQ_START, policy);
@@ -1109,6 +1108,11 @@  static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif,
 
 	cpufreq_init_policy(policy);
 
+	if (!frozen) {
+		policy->user_policy.policy = policy->policy;
+		policy->user_policy.governor = policy->governor;
+	}
+
 	kobject_uevent(&policy->kobj, KOBJ_ADD);
 	up_read(&cpufreq_rwsem);