diff --git a/arch/arm/src/nrf52/nrf52_config.h b/arch/arm/src/nrf52/nrf52_config.h
index 82d4377a00..a01abca183 100644
--- a/arch/arm/src/nrf52/nrf52_config.h
+++ b/arch/arm/src/nrf52/nrf52_config.h
@@ -50,6 +50,7 @@
  ************************************************************************************/
 
 /* Configuration *********************************************************************/
+
 /* Make sure that no unsupported UART, I2C master, or SPI master peripherals are
  * enabled.
  */
diff --git a/arch/arm/src/nrf52/nrf52_lowputc.c b/arch/arm/src/nrf52/nrf52_lowputc.c
index 37cba0ded5..2491191bdb 100644
--- a/arch/arm/src/nrf52/nrf52_lowputc.c
+++ b/arch/arm/src/nrf52/nrf52_lowputc.c
@@ -84,7 +84,7 @@
 
 /* UART console configuration */
 
-static const struct uart_config_s g_console_config=
+static const struct uart_config_s g_console_config =
 {
   .baud      = CONSOLE_BAUD,
   .parity    = CONSOLE_PARITY,
@@ -116,11 +116,11 @@ static const struct uart_config_s g_console_config=
 #ifdef HAVE_UART_DEVICE
 static void nrf52_setbaud(uintptr_t base, const struct uart_config_s *config)
 {
-  uint32_t br = 0x01D7E000;  /* 268.444444 */
+  uint32_t br = 0x01d7e000;  /* 268.444444 */
 
   if (config->baud == 115200)
     {
-      br = 0x01D7E000;
+      br = 0x01d7e000;
     }
 
   putreg32(br, base + NRF52_UART_BAUDRATE_OFFSET);
@@ -204,14 +204,15 @@ void nrf52_usart_configure(uintptr_t base, const struct uart_config_s *config)
 void nrf52_usart_disable(uintptr_t base)
 {
   /* Disable interrupts */
+
   /* Disable the UART */
 
   putreg32(1, base + NRF52_UART_TASKS_STOPRX_OFFSET);
   putreg32(1, base + NRF52_UART_TASKS_STOPTX_OFFSET);
   putreg32(NRF52_UART_ENABLE_DISABLE, base + NRF52_UART_ENABLE_OFFSET);
 
-  putreg32(0xFFFFFFFF, base + NRF52_UART_PSELTXD_OFFSET);
-  putreg32(0xFFFFFFFF, base + NRF52_UART_PSELRXD_OFFSET);
+  putreg32(0xffffffff, base + NRF52_UART_PSELTXD_OFFSET);
+  putreg32(0xffffffff, base + NRF52_UART_PSELRXD_OFFSET);
 }
 #endif
 
@@ -229,7 +230,7 @@ void up_lowputc(char ch)
   putreg32(1, CONSOLE_BASE + NRF52_UART_TASKS_STARTTX_OFFSET);
   putreg32(0, CONSOLE_BASE + NRF52_UART_EVENTS_TXDRDY_OFFSET);
   putreg32(ch, CONSOLE_BASE + NRF52_UART_TXD_OFFSET);
-  while (getreg32(CONSOLE_BASE + NRF52_UART_EVENTS_TXDRDY_OFFSET) == 0 )
+  while (getreg32(CONSOLE_BASE + NRF52_UART_EVENTS_TXDRDY_OFFSET) == 0)
     {
     }
 
diff --git a/arch/arm/src/nrf52/nrf52_serial.c b/arch/arm/src/nrf52/nrf52_serial.c
index 7114a1cf6f..544424f4bb 100644
--- a/arch/arm/src/nrf52/nrf52_serial.c
+++ b/arch/arm/src/nrf52/nrf52_serial.c
@@ -71,6 +71,7 @@
  ****************************************************************************/
 
 /* Some sanity checks *******************************************************/
+
 /* Is there at least one UART enabled and configured as a RS-232 device? */
 
 #ifndef HAVE_UART_DEVICE
@@ -193,7 +194,7 @@ static uart_dev_t g_uart0port =
   {
     .size   = CONFIG_UART0_TXBUFSIZE,
     .buffer = g_uart0txbuffer,
-   },
+  },
   .ops      = &g_uart_ops,
   .priv     = &g_uart0priv,
 };
@@ -301,6 +302,7 @@ static void nrf52_shutdown(struct uart_dev_s *dev)
   /* TODO: release uart pins */
 
   /* Disable interrupts */
+
   /* Reset hardware and disable Rx and Tx */
 
   nrf52_usart_disable(priv->uartbase);
@@ -513,12 +515,11 @@ static void nrf52_send(struct uart_dev_s *dev, int ch)
   putreg32(1, priv->uartbase + NRF52_UART_TASKS_STARTTX_OFFSET);
 
   putreg32(ch, priv->uartbase + NRF52_UART_TXD_OFFSET);
-  while (getreg32(priv->uartbase + NRF52_UART_EVENTS_TXDRDY_OFFSET) == 0 )
+  while (getreg32(priv->uartbase + NRF52_UART_EVENTS_TXDRDY_OFFSET) == 0)
     {
     }
 
   putreg32(1, priv->uartbase + NRF52_UART_TASKS_STOPTX_OFFSET);
-
 }
 
 /****************************************************************************