Commit 49796c35 authored Oct 16, 2018 by Andy Duan Committed by Greg Kroah-Hartman Feb 12, 2019

serial: fsl_lpuart: clear parity enable bit when disable parity



[ Upstream commit 397bd9211fe014b347ca8f95a8f4e1017bac1aeb ]

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.

Cc: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Andy Duan <fugang.duan@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 7543c3cf

drivers/tty/serial/fsl_lpuart.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1477,6 +1477,8 @@ lpuart_set_termios(struct uart_port port, struct ktermios termios,
		else
		cr1 &= ~UARTCR1_PT;
		}
		} else {
		cr1 &= ~UARTCR1_PE;
		}

		/* ask the core to calculate the divisor */
		@@ -1688,6 +1690,8 @@ lpuart32_set_termios(struct uart_port port, struct ktermios termios,
		else
		ctrl &= ~UARTCTRL_PT;
		}
		} else {
		ctrl &= ~UARTCTRL_PE;
		}

		/* ask the core to calculate the divisor */