From f87fa71e6fb0fa7bade9c3f3bb3f49325e76a90a Mon Sep 17 00:00:00 2001 From: Wolfgang Ocker Date: Mon, 12 Dec 2016 08:21:01 +0100 Subject: [PATCH] serial: mxs-auart: support CMSPAR termios cflag If CMSPAR is set in the c_cflag of termios, "stick" parity is enabled. Tested on an i.MX28 system Signed-off-by: Wolfgang Ocker Acked-by: Stefan Wahren Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/mxs-auart.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c index 8c1c9112b3fd..6989b227d134 100644 --- a/drivers/tty/serial/mxs-auart.c +++ b/drivers/tty/serial/mxs-auart.c @@ -95,6 +95,7 @@ #define AUART_LINECTRL_BAUD_DIVFRAC_SHIFT 8 #define AUART_LINECTRL_BAUD_DIVFRAC_MASK 0x00003f00 #define AUART_LINECTRL_BAUD_DIVFRAC(v) (((v) & 0x3f) << 8) +#define AUART_LINECTRL_SPS (1 << 7) #define AUART_LINECTRL_WLEN_MASK 0x00000060 #define AUART_LINECTRL_WLEN(v) (((v) & 0x3) << 5) #define AUART_LINECTRL_FEN (1 << 4) @@ -1014,6 +1015,8 @@ static void mxs_auart_settermios(struct uart_port *u, ctrl |= AUART_LINECTRL_PEN; if ((cflag & PARODD) == 0) ctrl |= AUART_LINECTRL_EPS; + if (cflag & CMSPAR) + ctrl |= AUART_LINECTRL_SPS; } u->read_status_mask = AUART_STAT_OERR;