lkml.org 
[lkml]   [2019]   [Jan]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH AUTOSEL 3.18 08/61] serial: fsl_lpuart: clear parity enable bit when disable parity
    Date
    From: Andy Duan <fugang.duan@nxp.com>

    [ 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 92b7a5bf7c4d..839e65da4d3f 100644
    --- a/drivers/tty/serial/fsl_lpuart.c
    +++ b/drivers/tty/serial/fsl_lpuart.c
    @@ -1284,6 +1284,8 @@ 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 */
    @@ -1419,6 +1421,8 @@ 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: 2019-01-28 17:27    [W:2.708 / U:0.204 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site