From: Corey Minyard <cminy...@mvista.com>

The mpsc serial driver needx to set the port's device tree element
to register properly.

Signed-off-by: Corey Minyard <cminy...@mvista.com>
---

Index: linux-2.6/drivers/serial/mpsc.c
===================================================================
--- linux-2.6.orig/drivers/serial/mpsc.c
+++ linux-2.6/drivers/serial/mpsc.c
@@ -2070,6 +2070,7 @@ static int mpsc_drv_probe(struct platfor
 
                if (!(rc = mpsc_drv_map_regs(pi, dev))) {
                        mpsc_drv_get_platform_data(pi, dev, dev->id);
+                       pi->port.dev = &dev->dev;
 
                        if (!(rc = mpsc_make_ready(pi))) {
                                spin_lock_init(&pi->tx_lock);
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