cpufreq: Introduce macros for cpufreq_frequency_table iteration

[firefly-linux-kernel-4.4.55.git] / drivers / cpufreq / cpufreq.c

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index abda6609d3e79f670c7143a01bbec53078e8bce1..a517da996aaffb229632c52bef7e17239729a641 100644 (file)
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -237,6 +237,17 @@ void cpufreq_cpu_put(struct cpufreq_policy *policy)
 }
 EXPORT_SYMBOL_GPL(cpufreq_cpu_put);
 
+bool cpufreq_next_valid(struct cpufreq_frequency_table **pos)
+{
+       while ((*pos)->frequency != CPUFREQ_TABLE_END)
+               if ((*pos)->frequency != CPUFREQ_ENTRY_INVALID)
+                       return true;
+               else
+                       (*pos)++;
+       return false;
+}
+EXPORT_SYMBOL_GPL(cpufreq_next_valid);
+
 /*********************************************************************
  *            EXTERNALLY AFFECTING FREQUENCY CHANGES                 *
  *********************************************************************/