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Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/core/core.c13
-rw-r--r--drivers/mmc/core/sdio_bus.c32
2 files changed, 13 insertions, 32 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 9683d4d3fced..241ffb28351c 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -22,6 +22,7 @@
#include <linux/scatterlist.h>
#include <linux/log2.h>
#include <linux/regulator/consumer.h>
+#include <linux/pm_runtime.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
@@ -1785,6 +1786,18 @@ int mmc_resume_host(struct mmc_host *host)
if (!(host->pm_flags & MMC_PM_KEEP_POWER)) {
mmc_power_up(host);
mmc_select_voltage(host, host->ocr);
+ /*
+ * Tell runtime PM core we just powered up the card,
+ * since it still believes the card is powered off.
+ * Note that currently runtime PM is only enabled
+ * for SDIO cards that are MMC_CAP_POWER_OFF_CARD
+ */
+ if (mmc_card_sdio(host->card) &&
+ (host->caps & MMC_CAP_POWER_OFF_CARD)) {
+ pm_runtime_disable(&host->card->dev);
+ pm_runtime_set_active(&host->card->dev);
+ pm_runtime_enable(&host->card->dev);
+ }
}
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index 203da443e339..d29b9c36919a 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c
@@ -197,44 +197,12 @@ out:
#ifdef CONFIG_PM_RUNTIME
-static int sdio_bus_pm_prepare(struct device *dev)
-{
- struct sdio_func *func = dev_to_sdio_func(dev);
-
- /*
- * Resume an SDIO device which was suspended at run time at this
- * point, in order to allow standard SDIO suspend/resume paths
- * to keep working as usual.
- *
- * Ultimately, the SDIO driver itself will decide (in its
- * suspend handler, or lack thereof) whether the card should be
- * removed or kept, and if kept, at what power state.
- *
- * At this point, PM core have increased our use count, so it's
- * safe to directly resume the device. After system is resumed
- * again, PM core will drop back its runtime PM use count, and if
- * needed device will be suspended again.
- *
- * The end result is guaranteed to be a power state that is
- * coherent with the device's runtime PM use count.
- *
- * The return value of pm_runtime_resume is deliberately unchecked
- * since there is little point in failing system suspend if a
- * device can't be resumed.
- */
- if (func->card->host->caps & MMC_CAP_POWER_OFF_CARD)
- pm_runtime_resume(dev);
-
- return 0;
-}
-
static const struct dev_pm_ops sdio_bus_pm_ops = {
SET_RUNTIME_PM_OPS(
pm_generic_runtime_suspend,
pm_generic_runtime_resume,
pm_generic_runtime_idle
)
- .prepare = sdio_bus_pm_prepare,
};
#define SDIO_PM_OPS_PTR (&sdio_bus_pm_ops)