From: "Govindraj.R" <govindraj.raja@xxxxxx> Currently all low level uart driver register to serial_core layer this core layer exposes various serial uart ops. Whenever port is opened the low level platform specific wakeup capability can be enabled use the already available set_wakeup uart ops to configure wakeup capability. When port is opened the wakeup can be enabled and when port is shutdown the wakeups can be disabled. Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: Alan Cox <alan@xxxxxxxxxxxxxxx> Signed-off-by: Govindraj.R <govindraj.raja@xxxxxx> --- drivers/tty/serial/serial_core.c | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-) diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 9c4c05b..44b81aa 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -185,6 +185,13 @@ static int uart_port_startup(struct tty_struct *tty, struct uart_state *state, } /* + * Now with port open enable any platform specific wakeup + * capability for the port if available. + */ + if (uport->ops->set_wake) + uport->ops->set_wake(uport, true); + + /* * This is to allow setserial on this port. People may want to set * port/irq/type and then reconfigure the port properly if it failed * now. @@ -1427,6 +1434,13 @@ static void uart_port_shutdown(struct tty_port *port) uport->ops->shutdown(uport); /* + * now port is closed disable any platform + * specific wakeup capability that might be enabled. + */ + if (uport->ops->set_wake) + uport->ops->set_wake(uport, false); + + /* * Ensure that the IRQ handler isn't running on another CPU. */ synchronize_irq(uport->irq); -- 1.7.9 -- 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
