diff --git a/[refs] b/[refs]
index 57ecaacec53e..ed7174569c1e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 40bba0c1ca83a370f749c8bc9afda71cf79ebd91
+refs/heads/master: 87973ba27b751353e2915cb3aa5c0e0dc6a79a4f
diff --git a/trunk/drivers/mmc/core/sdio.c b/trunk/drivers/mmc/core/sdio.c
index 85561dde4c9d..c3ad1058cd31 100644
--- a/trunk/drivers/mmc/core/sdio.c
+++ b/trunk/drivers/mmc/core/sdio.c
@@ -546,6 +546,11 @@ static void mmc_sdio_detect(struct mmc_host *host)
 	BUG_ON(!host);
 	BUG_ON(!host->card);
 
+	/* Make sure card is powered before detecting it */
+	err = pm_runtime_get_sync(&host->card->dev);
+	if (err < 0)
+		goto out;
+
 	mmc_claim_host(host);
 
 	/*
@@ -555,6 +560,7 @@ static void mmc_sdio_detect(struct mmc_host *host)
 
 	mmc_release_host(host);
 
+out:
 	if (err) {
 		mmc_sdio_remove(host);
 
@@ -562,6 +568,9 @@ static void mmc_sdio_detect(struct mmc_host *host)
 		mmc_detach_bus(host);
 		mmc_release_host(host);
 	}
+
+	/* Tell PM core that we're done */
+	pm_runtime_put(&host->card->dev);
 }
 
 /*