mfd: Use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/mcp-sa11x0.c b/drivers/mfd/mcp-sa11x0.c
index 13198d9..41c31b3 100644
--- a/drivers/mfd/mcp-sa11x0.c
+++ b/drivers/mfd/mcp-sa11x0.c
@@ -156,7 +156,7 @@
 
 static int mcp_sa11x0_probe(struct platform_device *dev)
 {
-	struct mcp_plat_data *data = dev->dev.platform_data;
+	struct mcp_plat_data *data = dev_get_platdata(&dev->dev);
 	struct resource *mem0, *mem1;
 	struct mcp_sa11x0 *m;
 	struct mcp *mcp;