drivers/rtc/rtc-mpc5121.c: 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>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-mpc5121.c

@@ -324,7 +324,7 @@ static int mpc5121_rtc_probe(struct platform_device *op)
 
 	device_init_wakeup(&op->dev, 1);
 
-	dev_set_drvdata(&op->dev, rtc);
+	platform_set_drvdata(op, rtc);
 
 	rtc->irq = irq_of_parse_and_map(op->dev.of_node, 1);
 	err = request_irq(rtc->irq, mpc5121_rtc_handler, 0,
@@ -382,7 +382,7 @@ out_dispose:
 
 static int mpc5121_rtc_remove(struct platform_device *op)
 {
-	struct mpc5121_rtc_data *rtc = dev_get_drvdata(&op->dev);
+	struct mpc5121_rtc_data *rtc = platform_get_drvdata(op);
 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;
 
 	/* disable interrupt, so there are no nasty surprises */