media: platform: s5p-mfc: simplify getting .drvdata

We should get drvdata from struct device directly. Going via
platform_device is an unneeded step back and forth.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/s5p-mfc/s5p_mfc.c

@@ -1449,8 +1449,7 @@ static int s5p_mfc_remove(struct platform_device *pdev)
 
 static int s5p_mfc_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct s5p_mfc_dev *m_dev = platform_get_drvdata(pdev);
+	struct s5p_mfc_dev *m_dev = dev_get_drvdata(dev);
 	int ret;
 
 	if (m_dev->num_inst == 0)
@@ -1484,8 +1483,7 @@ static int s5p_mfc_suspend(struct device *dev)
 
 static int s5p_mfc_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct s5p_mfc_dev *m_dev = platform_get_drvdata(pdev);
+	struct s5p_mfc_dev *m_dev = dev_get_drvdata(dev);
 
 	if (m_dev->num_inst == 0)
 		return 0;