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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 <weo@reccoware.de>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wolfgang Ocker 2016-12-12 08:21:01 +01:00 committed by Greg Kroah-Hartman
parent 11652fc7b7
commit f87fa71e6f
1 changed files with 3 additions and 0 deletions
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3
drivers/tty/serial/mxs-auart.c
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@ -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;