1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 709ada9f26b5..c296bc098fe2 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -897,6 +897,7 @@ int __mmc_claim_host(struct mmc_host *host, atomic_t *abort)
         DECLARE_WAITQUEUE(wait, current);
         unsigned long flags;
         int stop;
+        bool pm = false;
 
         might_sleep();
 
@@ -916,13 +917,18 @@ int __mmc_claim_host(struct mmc_host *host, atomic_t *abort)
                 host->claimed = 1;
                 host->claimer = current;
                 host->claim_cnt += 1;
+                if (host->claim_cnt == 1)
+                        pm = true;
         } else
                 wake_up(&host->wq);
         spin_unlock_irqrestore(&host->lock, flags);
         remove_wait_queue(&host->wq, &wait);
+
+        if (pm)
+                pm_runtime_get_sync(mmc_dev(host));
+
         return stop;
 }
-
 EXPORT_SYMBOL(__mmc_claim_host);
 
 /**
@@ -947,6 +953,8 @@ void mmc_release_host(struct mmc_host *host)
                 host->claimer = NULL;
                 spin_unlock_irqrestore(&host->lock, flags);
                 wake_up(&host->wq);
+                pm_runtime_mark_last_busy(mmc_dev(host));
+                pm_runtime_put_autosuspend(mmc_dev(host));
         }
 }
 EXPORT_SYMBOL(mmc_release_host);