lkml.org 
[lkml]   [2019]   [Feb]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.9 012/137] serial: fsl_lpuart: clear parity enable bit when disable parity
Date
4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

[ 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 e2ec04904f54..5c471c3481bd 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1344,6 +1344,8 @@ 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 */
@@ -1487,6 +1489,8 @@ 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 */
--
2.19.1


\
 
 \ /
  Last update: 2019-02-11 16:20    [W:0.320 / U:2.456 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site