spi: 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>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 09df8e2..c1d5d95 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -480,7 +480,7 @@
 	master->num_chipselect = MAX_CHIP_SELECT;
 	master->bus_num = -1;
 
-	dev_set_drvdata(&pdev->dev, master);
+	platform_set_drvdata(pdev, master);
 	tsd = spi_master_get_devdata(master);
 	tsd->master = master;
 	tsd->dev = &pdev->dev;
@@ -555,7 +555,7 @@
 
 static int tegra_sflash_remove(struct platform_device *pdev)
 {
-	struct spi_master *master = dev_get_drvdata(&pdev->dev);
+	struct spi_master *master = platform_get_drvdata(pdev);
 	struct tegra_sflash_data	*tsd = spi_master_get_devdata(master);
 
 	free_irq(tsd->irq, tsd);