diff --git a/arch/arm/src/nrf52/nrf52_gpiote.c b/arch/arm/src/nrf52/nrf52_gpiote.c
index 33c2e30fc68..2f30f0b1fa2 100644
--- a/arch/arm/src/nrf52/nrf52_gpiote.c
+++ b/arch/arm/src/nrf52/nrf52_gpiote.c
@@ -144,6 +144,7 @@ static int nrf52_gpiote_isr(int irq, void *context, void *arg)
 
               xcpt_t callback = g_gpiote_ch_callbacks[i].callback;
               void *cbarg = g_gpiote_ch_callbacks[i].arg;
+
               ret = callback(irq, context, cbarg);
 
               /* Clear event */
@@ -172,11 +173,11 @@ static int nrf52_gpiote_isr(int irq, void *context, void *arg)
             {
               case 0:
                 addr = NRF52_GPIO_P0_BASE + NRF52_GPIO_LATCH_OFFSET;
-              break;
+                break;
 #ifdef CONFIG_NRF52_HAVE_PORT1
               case 1:
                 addr = NRF52_GPIO_P1_BASE + NRF52_GPIO_LATCH_OFFSET;
-              break;
+                break;
 #endif
             }
 
@@ -220,7 +221,7 @@ static int nrf52_gpiote_isr(int irq, void *context, void *arg)
               ret = callback(irq, context, cbarg);
             }
 #endif
-       }
+        }
     }
 
   return ret;
diff --git a/arch/arm/src/nrf52/nrf52_rtc.c b/arch/arm/src/nrf52/nrf52_rtc.c
index a99e80c79f6..be28515ca83 100644
--- a/arch/arm/src/nrf52/nrf52_rtc.c
+++ b/arch/arm/src/nrf52/nrf52_rtc.c
@@ -735,6 +735,7 @@ errout:
 static uint32_t nrf52_rtc_getbase(struct nrf52_rtc_dev_s *dev)
 {
   struct nrf52_rtc_priv_s *rtc = (struct nrf52_rtc_priv_s *)dev;
+
   DEBUGASSERT(dev);
 
   return rtc->base;
diff --git a/arch/arm/src/nrf52/nrf52_spi.c b/arch/arm/src/nrf52/nrf52_spi.c
index 0ecaad43fae..b4b958cb3b1 100644
--- a/arch/arm/src/nrf52/nrf52_spi.c
+++ b/arch/arm/src/nrf52/nrf52_spi.c
@@ -740,10 +740,10 @@ static uint32_t nrf52_spi_setfrequency(struct spi_dev_s *dev,
   switch (frequency)
     {
       case 125000:
-      {
-        regval = SPIM_FREQUENCY_125KBPS;
-        break;
-      }
+        {
+          regval = SPIM_FREQUENCY_125KBPS;
+          break;
+        }
 
       case 250000:
         {
@@ -764,10 +764,10 @@ static uint32_t nrf52_spi_setfrequency(struct spi_dev_s *dev,
         }
 
       case 2000000:
-      {
-        regval = SPIM_FREQUENCY_2MBPS;
-        break;
-      }
+        {
+          regval = SPIM_FREQUENCY_2MBPS;
+          break;
+        }
 
       case 4000000:
         {
diff --git a/arch/arm/src/nrf53/nrf53_rtc.c b/arch/arm/src/nrf53/nrf53_rtc.c
index 4d492e7ed16..b7affd8cff6 100644
--- a/arch/arm/src/nrf53/nrf53_rtc.c
+++ b/arch/arm/src/nrf53/nrf53_rtc.c
@@ -722,6 +722,7 @@ errout:
 static uint32_t nrf53_rtc_getbase(struct nrf53_rtc_dev_s *dev)
 {
   struct nrf53_rtc_priv_s *rtc = (struct nrf53_rtc_priv_s *)dev;
+
   DEBUGASSERT(dev);
 
   return rtc->base;
diff --git a/arch/arm/src/nrf53/nrf53_spi.c b/arch/arm/src/nrf53/nrf53_spi.c
index e17bd398041..6d9e7f40ce4 100644
--- a/arch/arm/src/nrf53/nrf53_spi.c
+++ b/arch/arm/src/nrf53/nrf53_spi.c
@@ -795,10 +795,10 @@ static uint32_t nrf53_spi_setfrequency(struct spi_dev_s *dev,
   switch (frequency)
     {
       case 125000:
-      {
-        regval = SPIM_FREQUENCY_125KBPS;
-        break;
-      }
+        {
+          regval = SPIM_FREQUENCY_125KBPS;
+          break;
+        }
 
       case 250000:
         {
@@ -819,10 +819,10 @@ static uint32_t nrf53_spi_setfrequency(struct spi_dev_s *dev,
         }
 
       case 2000000:
-      {
-        regval = SPIM_FREQUENCY_2MBPS;
-        break;
-      }
+        {
+          regval = SPIM_FREQUENCY_2MBPS;
+          break;
+        }
 
       case 4000000:
         {
diff --git a/arch/arm/src/nrf91/nrf91_gpiote.c b/arch/arm/src/nrf91/nrf91_gpiote.c
index 71ae787d060..2bba898488a 100644
--- a/arch/arm/src/nrf91/nrf91_gpiote.c
+++ b/arch/arm/src/nrf91/nrf91_gpiote.c
@@ -155,6 +155,7 @@ static int nrf91_gpiote_isr(int irq, void *context, void *arg)
 
               xcpt_t callback = g_gpiote_ch_callbacks[i].callback;
               void *cbarg = g_gpiote_ch_callbacks[i].arg;
+
               ret = callback(irq, context, cbarg);
 
               /* Clear event */
@@ -183,11 +184,11 @@ static int nrf91_gpiote_isr(int irq, void *context, void *arg)
             {
               case 0:
                 addr = NRF91_GPIO_P0_BASE + NRF91_GPIO_LATCH_OFFSET;
-              break;
+                break;
 #ifdef CONFIG_NRF91_HAVE_PORT1
               case 1:
                 addr = NRF91_GPIO_P1_BASE + NRF91_GPIO_LATCH_OFFSET;
-              break;
+                break;
 #endif
             }
 
@@ -231,7 +232,7 @@ static int nrf91_gpiote_isr(int irq, void *context, void *arg)
               ret = callback(irq, context, cbarg);
             }
 #endif
-       }
+        }
     }
 
   return ret;
diff --git a/arch/arm/src/nrf91/nrf91_rtc.c b/arch/arm/src/nrf91/nrf91_rtc.c
index 7905973b42c..b2ce9cedc8f 100644
--- a/arch/arm/src/nrf91/nrf91_rtc.c
+++ b/arch/arm/src/nrf91/nrf91_rtc.c
@@ -722,6 +722,7 @@ errout:
 static uint32_t nrf91_rtc_getbase(struct nrf91_rtc_dev_s *dev)
 {
   struct nrf91_rtc_priv_s *rtc = (struct nrf91_rtc_priv_s *)dev;
+
   DEBUGASSERT(dev);
 
   return rtc->base;
diff --git a/arch/arm/src/nrf91/nrf91_spi.c b/arch/arm/src/nrf91/nrf91_spi.c
index 5777aa1deba..7b1799577e0 100644
--- a/arch/arm/src/nrf91/nrf91_spi.c
+++ b/arch/arm/src/nrf91/nrf91_spi.c
@@ -713,10 +713,10 @@ static uint32_t nrf91_spi_setfrequency(struct spi_dev_s *dev,
   switch (frequency)
     {
       case 125000:
-      {
-        regval = SPIM_FREQUENCY_125KBPS;
-        break;
-      }
+        {
+          regval = SPIM_FREQUENCY_125KBPS;
+          break;
+        }
 
       case 250000:
         {
@@ -737,10 +737,10 @@ static uint32_t nrf91_spi_setfrequency(struct spi_dev_s *dev,
         }
 
       case 2000000:
-      {
-        regval = SPIM_FREQUENCY_2MBPS;
-        break;
-      }
+        {
+          regval = SPIM_FREQUENCY_2MBPS;
+          break;
+        }
 
       case 4000000:
         {