drivers/serial: stm32: Fix for stm32 serial driver not returning -ENO…

…TSUP. Fixes driver incorrectly indicating that drive r supports 7 and 9 bit modes. Fixes zephyrproject-rtos#31799 Signed-off-by: Zisis Adamos <[email protected]>
zisisadamos · Feb 6, 2021 · 0ead6c6 · 0ead6c6
1 parent d8d2749
commit 0ead6c6
Showing 1 changed file with 4 additions and 9 deletions.
diff --git a/drivers/serial/uart_stm32.c b/drivers/serial/uart_stm32.c
@@ -334,15 +334,10 @@ static int uart_stm32_configure(const struct device *dev,
 #endif
 
  /* Driver doesn't support 5 or 6 databits and potentially 7 or 9 */
- if ((UART_CFG_DATA_BITS_5 == cfg->data_bits) ||
- (UART_CFG_DATA_BITS_6 == cfg->data_bits)
-#ifndef LL_USART_DATAWIDTH_7B
- || (UART_CFG_DATA_BITS_7 == cfg->data_bits)
-#endif /* LL_USART_DATAWIDTH_7B */
-#ifndef LL_USART_DATAWIDTH_9B
- || (UART_CFG_DATA_BITS_9 == cfg->data_bits)
-#endif /* LL_USART_DATAWIDTH_9B */
- ) {
+ if ((cfg->data_bits == UART_CFG_DATA_BITS_5) ||
+ (cfg->data_bits == UART_CFG_DATA_BITS_6) ||
+ (cfg->data_bits == UART_CFG_DATA_BITS_7) ||
+ (cfg->data_bits == UART_CFG_DATA_BITS_9)) {
  return -ENOTSUP;
  }