[PATCH v2 tty/serial 2/2] serial: fsl_lpuart: clear parity enable bit when disable parity

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Current driver only enable parity enable bit and never clear it
when user set the termios. The fix clear the parity enable bit when
PARENB flag is not set in termios->c_cflag.

To: Fabio Estevam <festevam@xxxxxxxxx>
To: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Uwe Kleine-K枚nig <u.kleine-koenig@xxxxxxxxxxxxxx>
Cc: Lukas Wunner <lukas@xxxxxxxxx>
Signed-off-by: Andy Duan <fugang.duan@xxxxxxx>
---
 drivers/tty/serial/fsl_lpuart.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index cabae83..241a48e 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1479,6 +1479,8 @@ static void lpuart32_shutdown(struct uart_port *port)
 			else
 				cr1 &= ~UARTCR1_PT;
 		}
+	} else {
+		cr1 &= ~UARTCR1_PE;
 	}
 
 	/* ask the core to calculate the divisor */
@@ -1690,6 +1692,8 @@ static void lpuart32_shutdown(struct uart_port *port)
 			else
 				ctrl &= ~UARTCTRL_PT;
 		}
+	} else {
+		ctrl &= ~UARTCTRL_PE;
 	}
 
 	/* ask the core to calculate the divisor */
-- 
1.9.1





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