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-rw-r--r--drivers/mmc/host/mmci.c19
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 544995b..6a21fc0 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -178,8 +178,10 @@ mmci_request_end(struct mmci_host *host, struct mmc_request *mrq)
host->mrq = NULL;
host->cmd = NULL;
- pm_runtime_put(mmc_dev(host->mmc));
mmc_request_done(host->mmc, mrq);
+
+ pm_runtime_mark_last_busy(mmc_dev(host->mmc));
+ pm_runtime_put_autosuspend(mmc_dev(host->mmc));
}
static void mmci_set_mask1(struct mmci_host *host, unsigned int mask)
@@ -1026,6 +1028,8 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
unsigned long flags;
int ret;
+ pm_runtime_get_sync(mmc_dev(mmc));
+
if (host->plat->ios_handler &&
host->plat->ios_handler(mmc_dev(mmc), ios))
dev_err(mmc_dev(mmc), "platform ios_handler failed\n");
@@ -1046,7 +1050,7 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
* power should be rare so we print an error
* and return here.
*/
- return;
+ goto out;
}
}
/*
@@ -1100,6 +1104,10 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
}
spin_unlock_irqrestore(&host->lock, flags);
+
+ out:
+ pm_runtime_mark_last_busy(mmc_dev(mmc));
+ pm_runtime_put_autosuspend(mmc_dev(mmc));
}
static int mmci_get_ro(struct mmc_host *mmc)
@@ -1372,6 +1380,8 @@ static int __devinit mmci_probe(struct amba_device *dev,
mmci_dma_setup(host);
+ pm_runtime_set_autosuspend_delay(&dev->dev, 50);
+ pm_runtime_use_autosuspend(&dev->dev);
pm_runtime_put(&dev->dev);
mmc_add_host(mmc);
@@ -1467,8 +1477,10 @@ static int mmci_suspend(struct device *dev)
struct mmci_host *host = mmc_priv(mmc);
ret = mmc_suspend_host(mmc);
- if (ret == 0)
+ if (ret == 0) {
+ pm_runtime_get_sync(dev);
writel(0, host->base + MMCIMASK0);
+ }
}
return ret;
@@ -1484,6 +1496,7 @@ static int mmci_resume(struct device *dev)
struct mmci_host *host = mmc_priv(mmc);
writel(MCI_IRQENABLE, host->base + MMCIMASK0);
+ pm_runtime_put(dev);
ret = mmc_resume_host(mmc);
}