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 <festevam@xxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: Jiri Slaby <jslaby@xxxxxxxx> Cc: linux-serial@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Signed-off-by: Eduardo Valentin <edubezval@xxxxxxxxx> --- 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 3c2b0ac..167dea1 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1982,6 +1982,13 @@ 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 imx_serial_port_suspend_noirq(struct device *dev) -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
