[PATCH 3/3] serial: xilinx_uartps: set_mctrl sets RTS and DTR

From: shubhrajyoti . datta
Date: Mon Nov 25 2019 - 08:03:04 EST


From: Maarten Brock <m.brock@xxxxxxxxxxxxx>

set_mctrl now sets RTS and DTR.

Signed-off-by: Maarten Brock <m.brock@xxxxxxxxxxxxx>
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxxxxx>
---
drivers/tty/serial/xilinx_uartps.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 44dabd4..019302e 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1069,6 +1069,10 @@ static void cdns_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)
val &= ~(CDNS_UART_MODEMCR_RTS | CDNS_UART_MODEMCR_DTR);
mode_reg &= ~CDNS_UART_MR_CHMODE_MASK;

+ if (mctrl & TIOCM_RTS)
+ val |= CDNS_UART_MODEMCR_RTS;
+ if (mctrl & TIOCM_DTR)
+ val |= CDNS_UART_MODEMCR_DTR;
if (mctrl & TIOCM_LOOP)
mode_reg |= CDNS_UART_MR_CHMODE_L_LOOP;
else
--
2.1.1