spi-imx: don't access struct device directly but use dev_get_platdata

Also there is no casting needed to assign a void pointer.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c
index 4c9b133..e334747 100644
--- a/drivers/spi/spi_imx.c
+++ b/drivers/spi/spi_imx.c
@@ -492,7 +492,7 @@
 	struct resource *res;
 	int i, ret;
 
-	mxc_platform_info = (struct spi_imx_master *)pdev->dev.platform_data;
+	mxc_platform_info = dev_get_platdata(&pdev->dev);
 	if (!mxc_platform_info) {
 		dev_err(&pdev->dev, "can't get the platform data\n");
 		return -EINVAL;