4.19-stable review patch. If anyone has any objections, please let me know.
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[ 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 --- 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 3f8d1274fc85..7d030c2e42ff 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -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 */