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

Message ID 1410024075-1354-3-git-send-email-alchark@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Alexey Charkov Sept. 6, 2014, 5:21 p.m. UTC 
Signed-off-by: Alexey Charkov <alchark@gmail.com>
---
 drivers/tty/serial/vt8500_serial.c | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

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)