diff --git a/[refs] b/[refs]
index d63a0e392292..98001981111a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e6e238c38bd4d42d5e2cddb2165e1a46e0fb1200
+refs/heads/master: 475f41c3ab3dea3a5c60b90197baf57da01fdb5f
diff --git a/trunk/drivers/thermal/cpu_cooling.c b/trunk/drivers/thermal/cpu_cooling.c
index 836828e29a87..455c77a961de 100644
--- a/trunk/drivers/thermal/cpu_cooling.c
+++ b/trunk/drivers/thermal/cpu_cooling.c
@@ -118,8 +118,8 @@ static int is_cpufreq_valid(int cpu)
 /**
  * get_cpu_frequency - get the absolute value of frequency from level.
  * @cpu: cpu for which frequency is fetched.
- * @level: level of frequency of the CPU
- *	e.g level=1 --> 1st MAX FREQ, LEVEL=2 ---> 2nd MAX FREQ, .... etc
+ * @level: level of frequency, equals cooling state of cpu cooling device
+ *	e.g level=0 --> 1st MAX FREQ, level=1 ---> 2nd MAX FREQ, .... etc
  */
 static unsigned int get_cpu_frequency(unsigned int cpu, unsigned long level)
 {