diff options
Diffstat (limited to 'drivers/cpufreq/cpufreq.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index f870399f00b1..43f3912a2ac8 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -76,6 +76,7 @@ static inline bool has_target(void) /* internal prototypes */ static int cpufreq_governor(struct cpufreq_policy *policy, unsigned int event); static unsigned int __cpufreq_get(struct cpufreq_policy *policy); +static int cpufreq_start_governor(struct cpufreq_policy *policy); /** * Two notifier lists: the "policy" list is involved in the @@ -964,10 +965,7 @@ static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy, unsigned int cp cpumask_set_cpu(cpu, policy->cpus); if (has_target()) { - ret = cpufreq_governor(policy, CPUFREQ_GOV_START); - if (!ret) - ret = cpufreq_governor(policy, CPUFREQ_GOV_LIMITS); - + ret = cpufreq_start_governor(policy); if (ret) pr_err("%s: Failed to start governor\n", __func__); } @@ -1308,10 +1306,7 @@ static void cpufreq_offline(unsigned int cpu) /* Start governor again for active policy */ if (!policy_is_inactive(policy)) { if (has_target()) { - ret = cpufreq_governor(policy, CPUFREQ_GOV_START); - if (!ret) - ret = cpufreq_governor(policy, CPUFREQ_GOV_LIMITS); - + ret = cpufreq_start_governor(policy); if (ret) pr_err("%s: Failed to start governor\n", __func__); } @@ -1591,9 +1586,7 @@ void cpufreq_resume(void) policy); } else { down_write(&policy->rwsem); - ret = cpufreq_governor(policy, CPUFREQ_GOV_START); - if (!ret) - cpufreq_governor(policy, CPUFREQ_GOV_LIMITS); + ret = cpufreq_start_governor(policy); up_write(&policy->rwsem); if (ret) @@ -1935,6 +1928,14 @@ static int cpufreq_governor(struct cpufreq_policy *policy, unsigned int event) return ret; } +static int cpufreq_start_governor(struct cpufreq_policy *policy) +{ + int ret; + + ret = cpufreq_governor(policy, CPUFREQ_GOV_START); + return ret ? ret : cpufreq_governor(policy, CPUFREQ_GOV_LIMITS); +} + int cpufreq_register_governor(struct cpufreq_governor *governor) { int err; @@ -2071,8 +2072,10 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy, return cpufreq_driver->setpolicy(new_policy); } - if (new_policy->governor == policy->governor) - goto out; + if (new_policy->governor == policy->governor) { + pr_debug("cpufreq: governor limits update\n"); + return cpufreq_governor(policy, CPUFREQ_GOV_LIMITS); + } pr_debug("governor switch\n"); @@ -2100,10 +2103,11 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy, policy->governor = new_policy->governor; ret = cpufreq_governor(policy, CPUFREQ_GOV_POLICY_INIT); if (!ret) { - ret = cpufreq_governor(policy, CPUFREQ_GOV_START); - if (!ret) - goto out; - + ret = cpufreq_start_governor(policy); + if (!ret) { + pr_debug("cpufreq: governor change\n"); + return 0; + } cpufreq_governor(policy, CPUFREQ_GOV_POLICY_EXIT); } @@ -2114,14 +2118,10 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy, if (cpufreq_governor(policy, CPUFREQ_GOV_POLICY_INIT)) policy->governor = NULL; else - cpufreq_governor(policy, CPUFREQ_GOV_START); + cpufreq_start_governor(policy); } return ret; - - out: - pr_debug("governor: change or update limits\n"); - return cpufreq_governor(policy, CPUFREQ_GOV_LIMITS); } /** |