clk: use platform_{get,set}_drvdata()

Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev,
so we can directly pass a struct platform_device.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>

drivers/clk/clk-wm831x.c

@@ -384,7 +384,7 @@ static int wm831x_clk_probe(struct platform_device *pdev)
 	if (IS_ERR(clkdata->clkout))
 		return PTR_ERR(clkdata->clkout);
 
-	dev_set_drvdata(&pdev->dev, clkdata);
+	platform_set_drvdata(pdev, clkdata);
 
 	return 0;
 }