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drivers: serial: stm32: Fix possible issue with mixed enum

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When building with LLVM we get the following error:

uart_stm32.c:272:9: error: implicit conversion from enumeration type
'enum uart_config_parity' to different enumeration type
'enum uart_config_flow_control' [-Werror,-Wenum-conversion]
        return UART_CFG_PARITY_NONE;
        ~~~~~~ ^~~~~~~~~~~~~~~~~~~~

We shouldn't be mixing parity and flow control enum's.  Use
UART_CFG_FLOW_CTRL_NONE instead or UART_CFG_PARITY_NONE.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Kumar Gala 2020-02-06 11:30:05 -06:00 • committed by Carles Cufí
commit 6115346174
1 changed files with 2 additions and 2 deletions
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4
drivers/serial/uart_stm32.c
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@ -261,7 +261,7 @@ static inline u32_t uart_stm32_cfg2ll_hwctrl(enum uart_config_flow_control fc)
* LL hardware flow control define. * LL hardware flow control define.
* @note Supports only LL_USART_HWCONTROL_RTS_CTS. * @note Supports only LL_USART_HWCONTROL_RTS_CTS.
* @param fc: LL hardware frlow control definition. * @param fc: LL hardware frlow control definition.
* @retval UART_CFG_FLOW_CTRL_RTS_CTS, or UART_CFG_PARITY_NONE. * @retval UART_CFG_FLOW_CTRL_RTS_CTS, or UART_CFG_FLOW_CTRL_NONE.
*/ */
static inline enum uart_config_flow_control uart_stm32_ll2cfg_hwctrl(u32_t fc) static inline enum uart_config_flow_control uart_stm32_ll2cfg_hwctrl(u32_t fc)
{ {
@ -269,7 +269,7 @@ static inline enum uart_config_flow_control uart_stm32_ll2cfg_hwctrl(u32_t fc)
return UART_CFG_FLOW_CTRL_RTS_CTS; return UART_CFG_FLOW_CTRL_RTS_CTS;
} }
return UART_CFG_PARITY_NONE; return UART_CFG_FLOW_CTRL_NONE;
} }
static int uart_stm32_configure(struct device *dev, static int uart_stm32_configure(struct device *dev,