2 files changed, 11 insertions, 11 deletions
diff --git a/components/drivers/cputime/cputime.c b/components/drivers/cputime/cputime.c
index 3ec860d5c5..4a9eee3a71 100644
--- a/components/drivers/cputime/cputime.c
+++ b/components/drivers/cputime/cputime.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -14,7 +14,7 @@
 static const struct rt_clock_cputime_ops *_cputime_ops  = RT_NULL;
 
 /**
- * The clock_cpu_getres() function shall return the resolution of CPU time, the 
+ * The clock_cpu_getres() function shall return the resolution of CPU time, the
  * number of nanosecond per tick.
  *
  * @return the number of nanosecond per tick
@@ -43,7 +43,7 @@ uint32_t clock_cpu_gettime(void)
 }
 
 /**
- * The clock_cpu_microsecond() fucntion shall return the microsecond according to 
+ * The clock_cpu_microsecond() fucntion shall return the microsecond according to
  * cpu_tick parameter.
  *
  * @param cpu_tick the cpu tick
@@ -58,7 +58,7 @@ uint32_t clock_cpu_microsecond(uint32_t cpu_tick)
 }
 
 /**
- * The clock_cpu_microsecond() fucntion shall return the millisecond according to 
+ * The clock_cpu_microsecond() fucntion shall return the millisecond according to
  * cpu_tick parameter.
  *
  * @param cpu_tick the cpu tick
@@ -74,7 +74,7 @@ uint32_t clock_cpu_millisecond(uint32_t cpu_tick)
 
 /**
  * The clock_cpu_seops() function shall set the ops of cpu time.
- * 
+ *
  * @return always return 0.
  */
 int clock_cpu_setops(const struct rt_clock_cputime_ops *ops)
diff --git a/components/drivers/cputime/cputime_cortexm.c b/components/drivers/cputime/cputime_cortexm.c
index 05ed6ed447..071acfe9bb 100644
--- a/components/drivers/cputime/cputime_cortexm.c
+++ b/components/drivers/cputime/cputime_cortexm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -19,7 +19,7 @@
 static float cortexm_cputime_getres(void)
 {
     float ret = 1000 * 1000 * 1000;
-    
+
     ret = ret / SystemCoreClock;
     return ret;
 }
@@ -29,7 +29,7 @@ static uint32_t cortexm_cputime_gettime(void)
     return DWT->CYCCNT;
 }
 
-const static struct rt_clock_cputime_ops _cortexm_ops = 
+const static struct rt_clock_cputime_ops _cortexm_ops =
 {
     cortexm_cputime_getres,
     cortexm_cputime_gettime
@@ -38,13 +38,13 @@ const static struct rt_clock_cputime_ops _cortexm_ops =
 int cortexm_cputime_init(void)
 {
     /* check support bit */
-    if ((DWT->CTRL & (1UL << DWT_CTRL_NOCYCCNT_Pos)) == 0) 
+    if ((DWT->CTRL & (1UL << DWT_CTRL_NOCYCCNT_Pos)) == 0)
     {
         /* enable trace*/
         CoreDebug->DEMCR |= (1UL << CoreDebug_DEMCR_TRCENA_Pos);
-        
+
         /* whether cycle counter not enabled */
-        if ((DWT->CTRL & (1UL << DWT_CTRL_CYCCNTENA_Pos)) == 0) 
+        if ((DWT->CTRL & (1UL << DWT_CTRL_CYCCNTENA_Pos)) == 0)
         {
             /* enable cycle counter */
             DWT->CTRL |= (1UL << DWT_CTRL_CYCCNTENA_Pos);