diff --git a/drivers/gpu/arm/mali400/mali/common/mali_control_timer.c b/drivers/gpu/arm/mali400/mali/common/mali_control_timer.c
index c7a9aaa6ae3a..990e7ab5ede2 100755
--- a/drivers/gpu/arm/mali400/mali/common/mali_control_timer.c
+++ b/drivers/gpu/arm/mali400/mali/common/mali_control_timer.c
@@ -18,12 +18,17 @@
 
 static u64 period_start_time = 0;
 
-static _mali_osk_timer_t *mali_control_timer = NULL;    // .KP : mali_control_timer
+/** .KP : mali_control_timer */
+static _mali_osk_timer_t *mali_control_timer = NULL;
 static mali_bool timer_running = MALI_FALSE;
 
-static u32 mali_control_timeout = 50;
+/**
+ * period_of_notifying_mali_utilization_to_platform_dependent_part,
+ * ms 为单位.
+ */
+static u32 mali_control_timeout = 20;
 
-void mali_control_timer_add(u32 timeout)	// 'timeout' : 以 ms 为单位.
+void mali_control_timer_add(u32 timeout)/* 'timeout' : 以 ms 为单位. */
 {
 	_mali_osk_timer_add(mali_control_timer, _mali_osk_time_mstoticks(timeout));
 }
@@ -33,7 +38,7 @@ void mali_control_timer_mod(u32 timeout_in_ms)
 	_mali_osk_timer_mod(mali_control_timer, _mali_osk_time_mstoticks(timeout_in_ms));
 }
 
-static void mali_control_timer_callback(void *arg)  // .KP : mali_control_timer_callback
+static void mali_control_timer_callback(void *arg)
 {
 	if (mali_utilization_enabled()) {
 		struct mali_gpu_utilization_data *util_data = NULL;
@@ -50,10 +55,8 @@ static void mali_control_timer_callback(void *arg)  // .KP : mali_control_timer_
 #endif
 		}
 
-		if (MALI_TRUE == timer_running) {   // .CP : 
-			// mali_control_timer_add(mali_control_timeout);
+		if (MALI_TRUE == timer_running)
 			mali_control_timer_mod(mali_control_timeout);
-		}
 	}
 }