Merge branches 'pm-cpufreq' and 'pm-cpuidle'

[sfrench/cifs-2.6.git] / drivers / cpufreq / cpufreq-dt.c

diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index f56147a1daed54a2e7fe4be9c983e46db95ecfc6..fde97d6e31d6d9749698aaf91bfae821f1a72f9f 100644 (file)
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -211,6 +211,17 @@ static int cpufreq_init(struct cpufreq_policy *policy)
        /* OPPs might be populated at runtime, don't check for error here */
        of_init_opp_table(cpu_dev);
 
+       /*
+        * But we need OPP table to function so if it is not there let's
+        * give platform code chance to provide it for us.
+        */
+       ret = dev_pm_opp_get_opp_count(cpu_dev);
+       if (ret <= 0) {
+               pr_debug("OPP table is not ready, deferring probe\n");
+               ret = -EPROBE_DEFER;
+               goto out_free_opp;
+       }
+
        priv = kzalloc(sizeof(*priv), GFP_KERNEL);
        if (!priv) {
                ret = -ENOMEM;