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| author | Eduardo Valentin | 2015-08-11 19:21:22 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2015-08-15 02:23:25 +0200 |
| commit | bc85734b126f813ba46265c2d3a84c8839cb2e54 (patch) | |
| tree | e8afe1708ace1d91d542335b71f49923a5d27628 /drivers/tty/serial | |
| parent | serial: imx: introduce serial_imx_enable_wakeup() (diff) | |
| download | kernel-qcow2-linux-bc85734b126f813ba46265c2d3a84c8839cb2e54.tar.gz kernel-qcow2-linux-bc85734b126f813ba46265c2d3a84c8839cb2e54.tar.xz kernel-qcow2-linux-bc85734b126f813ba46265c2d3a84c8839cb2e54.zip | |
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>
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/imx.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 3c2b0aca7d0e..167dea1adf90 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) |