diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index a54dd5d7a5f9..c9ec725884e5 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -373,18 +373,25 @@ static struct sdhci_ops sdhci_s3c_ops = {
 static void sdhci_s3c_notify_change(struct platform_device *dev, int state)
 {
 	struct sdhci_host *host = platform_get_drvdata(dev);
+	struct sdhci_s3c *sc = sdhci_priv(host);
 	unsigned long flags;
 
 	if (host) {
 		spin_lock_irqsave(&host->lock, flags);
 		if (state) {
 			dev_dbg(&dev->dev, "card inserted.\n");
+#ifdef CONFIG_PM_RUNTIME
+			clk_prepare_enable(sc->clk_io);
+#endif
 			host->flags &= ~SDHCI_DEVICE_DEAD;
 			host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;
 		} else {
 			dev_dbg(&dev->dev, "card removed.\n");
 			host->flags |= SDHCI_DEVICE_DEAD;
 			host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;
+#ifdef CONFIG_PM_RUNTIME
+			clk_disable_unprepare(sc->clk_io);
+#endif
 		}
 		tasklet_schedule(&host->card_tasklet);
 		spin_unlock_irqrestore(&host->lock, flags);