Subject: [PATCH 2/4] tty: vt8500_serial: add missing support for RTS setting

From: [email-masked] (Alexey Charkov)
Date: Sat, 6 Sep 2014 21:21:13 +0400

Signed-off-by: Alexey Charkov <[email-masked]>
---
 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