[media] davinci: VPIF: fix module loading, init errors

Fix problems with automatic module loading by adding MODULE_ALIAS.  Also
fix various load-time errors cause by incorrect or not present
platform_data.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/drivers/media/platform/davinci/vpif.c b/drivers/media/platform/davinci/vpif.c
index 0380cf2..f50148d 100644
--- a/drivers/media/platform/davinci/vpif.c
+++ b/drivers/media/platform/davinci/vpif.c
@@ -32,6 +32,9 @@
 MODULE_DESCRIPTION("TI DaVinci Video Port Interface driver");
 MODULE_LICENSE("GPL");
 
+#define VPIF_DRIVER_NAME	"vpif"
+MODULE_ALIAS("platform:" VPIF_DRIVER_NAME);
+
 #define VPIF_CH0_MAX_MODES	22
 #define VPIF_CH1_MAX_MODES	2
 #define VPIF_CH2_MAX_MODES	15
@@ -466,7 +469,7 @@ static const struct dev_pm_ops vpif_pm = {
 
 static struct platform_driver vpif_driver = {
 	.driver = {
-		.name	= "vpif",
+		.name	= VPIF_DRIVER_NAME,
 		.pm	= vpif_pm_ops,
 	},
 	.remove = vpif_remove,