struct regulator_dev *rdev;
 
        rdev = regulator_register(®ulators[pdev->id], &pdev->dev,
-               pdev->dev.platform_data, pdev->dev.driver_data);
+               pdev->dev.platform_data, dev_get_drvdata(&pdev->dev));
 
        if (IS_ERR(rdev))
                return PTR_ERR(rdev);
 int wm8400_register_regulator(struct device *dev, int reg,
                              struct regulator_init_data *initdata)
 {
-       struct wm8400 *wm8400 = dev->driver_data;
+       struct wm8400 *wm8400 = dev_get_drvdata(dev);
 
        if (wm8400->regulators[reg].name)
                return -EBUSY;
        wm8400->regulators[reg].name = "wm8400-regulator";
        wm8400->regulators[reg].id = reg;
        wm8400->regulators[reg].dev.parent = dev;
-       wm8400->regulators[reg].dev.driver_data = wm8400;
        wm8400->regulators[reg].dev.platform_data = initdata;
+       dev_set_drvdata(&wm8400->regulators[reg].dev, wm8400);
 
        return platform_device_register(&wm8400->regulators[reg]);
 }