[PATCH 2/4] tty: vt8500_serial: add missing support for RTS setting
From: alchark@gmail.com (Alexey Charkov)
Date: 2014-09-06 17:22:28
Also in:
linux-devicetree, linux-serial, lkml
Subsystem:
arm/vt8500 arm architecture, the rest, tty layer and serial drivers · Maintainers:
Alexey Charkov, Krzysztof Kozlowski, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
Signed-off-by: Alexey Charkov <alchark@gmail.com> --- drivers/tty/serial/vt8500_serial.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c
index f225719..47e74f9 100644
--- a/drivers/tty/serial/vt8500_serial.c
+++ b/drivers/tty/serial/vt8500_serial.c@@ -291,6 +291,14 @@ static unsigned int vt8500_get_mctrl(struct uart_port *port) static void vt8500_set_mctrl(struct uart_port *port, unsigned int mctrl) { + unsigned int lcr = vt8500_read(port, VT8500_URLCR); + + if (mctrl & TIOCM_RTS) + lcr |= VT8500_RTS; + else + lcr &= ~VT8500_RTS; + + vt8500_write(port, lcr, VT8500_URLCR); } static void vt8500_break_ctl(struct uart_port *port, int break_ctl)
--
2.0.0