1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 9528bd57736..418522f88f7 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1484,6 +1484,18 @@ static int __cpufreq_governor(struct cpufreq_policy *policy,
                                         unsigned int event)
 {
         int ret;
+        struct cpufreq_governor *gov = CPUFREQ_PERFORMANCE_GOVERNOR;
+
+        if (policy->governor->max_transition_latency &&
+            policy->cpuinfo.transition_latency >
+            policy->governor->max_transition_latency) {
+                printk(KERN_WARNING "%s governor failed, too long"
+                       " transition latency of HW, fallback"
+                       " to %s governor\n",
+                       policy->governor->name,
+                       gov->name);
+                       policy->governor = gov;
+        }
 
         if (!try_module_get(policy->governor->owner))
                 return -EINVAL;