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authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-27 08:40:50 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-27 08:40:50 +0200
commit7e0a6fd5a4723c79cc46c9541e343092302e0e5b (patch)
tree7b1e3e7512eecdcc94811982766c25d64150a200 /drivers/mmc
parentca90666287401b475d9e0becf85bd02f069f1de8 (diff)
parent6cfa6279edbffa921b7d8c9519bfd83a24ba508e (diff)
Merge branch 'amba' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'amba' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: ARM: 7079/1: spi: Fix builderror in spi-pl022.c PM: add runtime PM support to MMCI PM: add runtime PM support to core Primecell driver
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/mmci.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 56e9a416826..5e142b7f5ec 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -29,6 +29,7 @@
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
#include <linux/amba/mmci.h>
+#include <linux/pm_runtime.h>
#include <asm/div64.h>
#include <asm/io.h>
@@ -170,6 +171,7 @@ mmci_request_end(struct mmci_host *host, struct mmc_request *mrq)
* back into the driver...
*/
spin_unlock(&host->lock);
+ pm_runtime_put(mmc_dev(host->mmc));
mmc_request_done(host->mmc, mrq);
spin_lock(&host->lock);
}
@@ -984,6 +986,8 @@ static void mmci_request(struct mmc_host *mmc, struct mmc_request *mrq)
return;
}
+ pm_runtime_get_sync(mmc_dev(mmc));
+
spin_lock_irqsave(&host->lock, flags);
host->mrq = mrq;
@@ -1327,6 +1331,8 @@ static int __devinit mmci_probe(struct amba_device *dev,
mmci_dma_setup(host);
+ pm_runtime_put(&dev->dev);
+
mmc_add_host(mmc);
return 0;
@@ -1364,6 +1370,12 @@ static int __devexit mmci_remove(struct amba_device *dev)
if (mmc) {
struct mmci_host *host = mmc_priv(mmc);
+ /*
+ * Undo pm_runtime_put() in probe. We use the _sync
+ * version here so that we can access the primecell.
+ */
+ pm_runtime_get_sync(&dev->dev);
+
mmc_remove_host(mmc);
writel(0, host->base + MMCIMASK0);