OMAP: omap_device: when building return platform_device instead of omap_device

All of the device init and device driver interaction with omap_device
is done using platform_device pointers.  To make this more explicit,
have omap_device return a platform_device pointer instead of an
omap_device pointer.

All current users of the omap_device pointer were only using it to get
at the platform_device pointer or struct device pointer, so fixing all
of the users was trivial.

This also makes it more difficult for device init code to directly
access members of struct omap_device, and allows for easier changing
of omap_device internals.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index 466fc722..53b6808 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -711,7 +711,7 @@
 {
 	struct omap_uart_state *uart;
 	struct omap_hwmod *oh;
-	struct omap_device *od;
+	struct platform_device *pdev;
 	void *pdata = NULL;
 	u32 pdata_size = 0;
 	char *name;
@@ -799,10 +799,10 @@
 	if (WARN_ON(!oh))
 		return;
 
-	od = omap_device_build(name, uart->num, oh, pdata, pdata_size,
+	pdev = omap_device_build(name, uart->num, oh, pdata, pdata_size,
 			       omap_uart_latency,
 			       ARRAY_SIZE(omap_uart_latency), false);
-	WARN(IS_ERR(od), "Could not build omap_device for %s: %s.\n",
+	WARN(IS_ERR(pdev), "Could not build omap_device for %s: %s.\n",
 	     name, oh->name);
 
 	omap_device_disable_idle_on_suspend(od);
@@ -812,7 +812,7 @@
 	uart->regshift = 2;
 	uart->mapbase = oh->slaves[0]->addr->pa_start;
 	uart->membase = omap_hwmod_get_mpu_rt_va(oh);
-	uart->pdev = &od->pdev;
+	uart->pdev = pdev;
 
 	oh->dev_attr = uart;
 
@@ -846,8 +846,8 @@
 
 	if ((cpu_is_omap34xx() && uart->padconf) ||
 	    (uart->wk_en && uart->wk_mask)) {
-		device_init_wakeup(&od->pdev.dev, true);
-		DEV_CREATE_FILE(&od->pdev.dev, &dev_attr_sleep_timeout);
+		device_init_wakeup(&pdev->dev, true);
+		DEV_CREATE_FILE(&pdev->dev, &dev_attr_sleep_timeout);
 	}
 
 	/* Enable the MDR1 errata for OMAP3 */