From 8c986d3e20bcbf33c680130a5798f25429c53e31 Mon Sep 17 00:00:00 2001 From: Alexey Charkov Date: Sat, 6 Sep 2014 21:21:13 +0400 Subject: [PATCH] tty: vt8500_serial: add missing support for RTS setting Signed-off-by: Alexey Charkov Signed-off-by: Greg Kroah-Hartman --- 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 f22571915185..47e74f9b01ae 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) -- 2.20.1