ata: pata_samsung_cf: simplify getting .driver_data

We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

drivers/ata/pata_samsung_cf.c

@@ -609,17 +609,15 @@ static int __exit pata_s3c_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM_SLEEP
 static int pata_s3c_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ata_host *host = platform_get_drvdata(pdev);
+	struct ata_host *host = dev_get_drvdata(dev);
 
 	return ata_host_suspend(host, PMSG_SUSPEND);
 }
 
 static int pata_s3c_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ata_host *host = platform_get_drvdata(pdev);
-	struct s3c_ide_platdata *pdata = dev_get_platdata(&pdev->dev);
+	struct ata_host *host = dev_get_drvdata(dev);
+	struct s3c_ide_platdata *pdata = dev_get_platdata(dev);
 	struct s3c_ide_info *info = host->private_data;
 
 	pata_s3c_hwinit(info, pdata);