spi: Use dev_get_drvdata at appropriate places

Use dev_get_drvdata() instead of platform_get_drvdata(to_platform_device(dev)).

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c
index 1381acb..8e07928 100644
--- a/drivers/spi/spi-coldfire-qspi.c
+++ b/drivers/spi/spi-coldfire-qspi.c
@@ -558,7 +558,7 @@
 #ifdef CONFIG_PM_RUNTIME
 static int mcfqspi_runtime_suspend(struct device *dev)
 {
-	struct mcfqspi *mcfqspi = platform_get_drvdata(to_platform_device(dev));
+	struct mcfqspi *mcfqspi = dev_get_drvdata(dev);
 
 	clk_disable(mcfqspi->clk);
 
@@ -567,7 +567,7 @@
 
 static int mcfqspi_runtime_resume(struct device *dev)
 {
-	struct mcfqspi *mcfqspi = platform_get_drvdata(to_platform_device(dev));
+	struct mcfqspi *mcfqspi = dev_get_drvdata(dev);
 
 	clk_enable(mcfqspi->clk);