diff options
| -rw-r--r-- | drivers/mmc/core/sdio.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 85561dde4c9..c3ad1058cd3 100644 --- a/drivers/mmc/core/sdio.c +++ b/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); } /* |