Commit bc85734b authored Aug 11, 2015 by Eduardo Valentin Committed by Greg Kroah-Hartman Aug 14, 2015

serial: imx: allow waking up on RTSD

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@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: linux-serial@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 189550b8

drivers/tty/serial/imx.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -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)

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