OMAPDSS: separate pdata based initialization

Move the platform-data based display device initialization into a
separate function, so that we may later add of-based initialization.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 2641a76..3a43dc2 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -176,7 +176,7 @@
 	return 0;
 }
 
-static int __init omap_sdi_probe(struct platform_device *pdev)
+static void __init sdi_probe_pdata(struct platform_device *pdev)
 {
 	struct omap_dss_board_info *pdata = pdev->dev.platform_data;
 	int i, r;
@@ -198,6 +198,11 @@
 			DSSERR("device %s register failed: %d\n",
 					dssdev->name, r);
 	}
+}
+
+static int __init omap_sdi_probe(struct platform_device *pdev)
+{
+	sdi_probe_pdata(pdev);
 
 	return 0;
 }