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authorYoshii Takashi <takashi.yoshii.zj@renesas.com>2011-08-23 08:27:18 +0000
committerPaul Mundt <lethal@linux-sh.org>2011-08-29 15:47:33 +0900
commit4480a688b2beaa82ecac269b6e21bf1a26251bf9 (patch)
tree57fdf49cc582ce32a643e0a52fb6469ce1879ec3 /drivers/tty/serial/sh-sci.c
parent34f7145a63211eb7ecfcafa6c2a8db5646baf953 (diff)
downloadlinux-stericsson-4480a688b2beaa82ecac269b6e21bf1a26251bf9.tar.gz
serial: sh-sci: report CTS as active for get_mctrl
sh-sci.c sets hardware up and then let the HW do all flow controls. There is no software code, nor needs to get/set real CTS signal. But, when turning CRTSCTS on through termios, uart_set_termios() in serial_core.c checks CTS, and stops TX if it is inactive at the moment. Because sci_get_mctrl() returns a fixed value DTR|RTS|DSR but CTS, the sequence open -> set CRTSCTS -> write hit the case and stop working, no more outputs. This patch makes sci_get_mctrl() report CTS in addition. Signed-off-by: Takashi YOSHII <takashi.yoshii.zj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/tty/serial/sh-sci.c')
-rw-r--r--drivers/tty/serial/sh-sci.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 18e6342af073..161e70010709 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1083,7 +1083,7 @@ static unsigned int sci_get_mctrl(struct uart_port *port)
/* This routine is used for getting signals of: DTR, DCD, DSR, RI,
and CTS/RTS */
- return TIOCM_DTR | TIOCM_RTS | TIOCM_DSR;
+ return TIOCM_DTR | TIOCM_RTS | TIOCM_CTS | TIOCM_DSR;
}
#ifdef CONFIG_SERIAL_SH_SCI_DMA