This patch sets RTSDEN bit when going into idle (Stop mode).
We add the RTSDEN for the case RTS is sent from
the remote connection. This way we allow the system
to wakeup when RTS is received.
Cc: Fabio Stevam <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Jiri Slaby <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Eduardo Valentin <[email protected]>
---
drivers/tty/serial/imx.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 6c6da8c..70802be 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1812,6 +1812,13 @@ static void serial_imx_enable_wakeup(struct imx_port *sport, bool on)
else
val &= ~UCR3_AWAKEN;
writel(val, sport->port.membase + UCR3);
+
+ val = readl(sport->port.membase + UCR1);
+ if (on)
+ val |= UCR1_RTSDEN;
+ else
+ val &= ~UCR1_RTSDEN;
+ writel(val, sport->port.membase + UCR1);
}
static int serial_imx_suspend(struct platform_device *dev, pm_message_t state)
--
2.5.0