[SERIAL] Fix console initialisation ordering

Ensure pm callback is called upon initialisation to place port in
correct power saving state.  Ensure console is initialised prior
to deciding whether to power down the port.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index a055f58f342f3a1570f8648eb35c4df8550be353..a3bd3a3f41f33944fb0dafce2e579948425e255c 100644 (file)
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -2126,6 +2126,14 @@ uart_configure_port(struct uart_driver *drv, struct uart_state *state,
                port->ops->set_mctrl(port, 0);
                spin_unlock_irqrestore(&port->lock, flags);
 
+               /*
+                * If this driver supports console, and it hasn't been
+                * successfully registered yet, try to re-register it.
+                * It may be that the port was not available.
+                */
+               if (port->cons && !(port->cons->flags & CON_ENABLED))
+                       register_console(port->cons);
+
                /*
                 * Power down all ports by default, except the
                 * console if we have one.
@@ -2286,6 +2294,7 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *port)
        }
 
        state->port = port;
+       state->pm_state = -1;
 
        port->cons = drv->cons;
        port->info = state->info;
@@ -2307,15 +2316,6 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *port)
         */
        tty_register_device(drv->tty_driver, port->line, port->dev);
 
-       /*
-        * If this driver supports console, and it hasn't been
-        * successfully registered yet, try to re-register it.
-        * It may be that the port was not available.
-        */
-       if (port->type != PORT_UNKNOWN &&
-           port->cons && !(port->cons->flags & CON_ENABLED))
-               register_console(port->cons);
-
        /*
         * Ensure UPF_DEAD is not set.
         */