commit 967c31bc07fa3844ef25eec09f13df561a7efb9d
author Ilya Tagunov <tagunil@gmail.com> Thu Mar 29 19:40:00 2018 +0300
committer Kumar Gala <kumar.gala@gmail.com> Fri May 25 11:54:42 2018 -0500
tree 690fa478d6222a3c6fe40a30e7001d895d45de8e
parent fd26514a4d40bc54be40bb294bd03b105d674c40

drivers: serial: stm32: enable LBD only for UARTs with LIN support

LBD interrupt manupulation makes sense for UART with LIN support only.
Otherwise this bit should not be touched.

Signed-off-by: Ilya Tagunov <tagunil@gmail.com>

drivers/serial/uart_stm32.c

diff --git a/drivers/serial/uart_stm32.c b/drivers/serial/uart_stm32.c
index 2cece2b..b5b563c 100644
--- a/drivers/serial/uart_stm32.c
+++ b/drivers/serial/uart_stm32.c
@@ -165,9 +165,11 @@
 
 	/* Enable FE, ORE interruptions */
 	LL_USART_EnableIT_ERROR(UartInstance);
+#if !defined(CONFIG_SOC_SERIES_STM32F0X) || defined(USART_LIN_SUPPORT)
 	/* Enable Line break detection */
-#ifndef CONFIG_SOC_SERIES_STM32F0X
-	LL_USART_EnableIT_LBD(UartInstance);
+	if (IS_UART_LIN_INSTANCE(UartInstance)) {
+		LL_USART_EnableIT_LBD(UartInstance);
+	}
 #endif
 	/* Enable parity error interruption */
 	LL_USART_EnableIT_PE(UartInstance);
@@ -177,13 +179,15 @@
 {
 	USART_TypeDef *UartInstance = UART_STRUCT(dev);
 
-	/* Enable FE, ORE interruptions */
+	/* Disable FE, ORE interruptions */
 	LL_USART_DisableIT_ERROR(UartInstance);
-	/* Enable Line break detection */
-#ifndef CONFIG_SOC_SERIES_STM32F0X
-	LL_USART_DisableIT_LBD(UartInstance);
+#if !defined(CONFIG_SOC_SERIES_STM32F0X) || defined(USART_LIN_SUPPORT)
+	/* Disable Line break detection */
+	if (IS_UART_LIN_INSTANCE(UartInstance)) {
+		LL_USART_DisableIT_LBD(UartInstance);
+	}
 #endif
-	/* Enable parity error interruption */
+	/* Disable parity error interruption */
 	LL_USART_DisableIT_PE(UartInstance);
 }