From: Wolfgang Ocker <weo@reccoware.de>
To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>, Wolfgang Ocker <weo@reccoware.de>
Subject: [PATCH] serial: mxs-auart: support CMSPAR termios cflag
Date: Wed, 30 Nov 2016 11:16:21 +0100 [thread overview]
Message-ID: <20161130101621.12571-1-weo@reccoware.de> (raw)
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>
---
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
next reply other threads:[~2016-11-30 10:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-30 10:16 Wolfgang Ocker [this message]
2016-12-06 13:36 [PATCH] serial: mxs-auart: support CMSPAR termios cflag Stefan Wahren
2016-12-06 15:54 ` Wolfgang Ocker
2016-12-12 7:21 Wolfgang Ocker
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