spi/s3c64xx: Ensure runtime PM is enabled prior to registration

Otherwise we may try to start transfers immediately and then fail to
runtime resume the device causing us not to have clocks enabled.
Signed-off-by: NMark Brown <broonie@linaro.org>
Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com>

Conflicts:
	drivers/spi/spi-s3c64xx.c

drivers/spi/spi-s3c64xx.c

@@ -1428,6 +1428,8 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
 	       S3C64XX_SPI_INT_TX_OVERRUN_EN | S3C64XX_SPI_INT_TX_UNDERRUN_EN,
 	       sdd->regs + S3C64XX_SPI_INT_EN);
 
+	pm_runtime_enable(&pdev->dev);
+
 	if (spi_register_master(master)) {
 		dev_err(&pdev->dev, "cannot register SPI master\n");
 		ret = -EBUSY;
@@ -1440,8 +1442,6 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
 					mem_res,
 					sdd->rx_dma.dmach, sdd->tx_dma.dmach);
 
-	pm_runtime_enable(&pdev->dev);
-
 	return 0;
 
 err3: