[PATCH] serial: mxs-auart: support CMSPAR termios cflag
From: Wolfgang Ocker <hidden>
Date: 2016-11-30 10:20:41
Also in:
lkml
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
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 <redacted> --- drivers/tty/serial/mxs-auart.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 770454e0dfa3..9d344f734d44 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)
@@ -1010,10 +1011,12 @@ static void mxs_auart_settermios(struct uart_port *u, ctrl |= AUART_LINECTRL_WLEN(bm); /* parity */ - if (cflag & PARENB) { + if (cflag & (PARENB|CMSPAR)) { ctrl |= AUART_LINECTRL_PEN; if ((cflag & PARODD) == 0) ctrl |= AUART_LINECTRL_EPS; + if (cflag & CMSPAR) + ctrl |= AUART_LINECTRL_SPS; } u->read_status_mask = 0;
--
2.10.0