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mmc: core: Handle card shutdown from mmc_bus

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Considering shutdown of the card, the responsibility to initate this
sequence shall be driven from the mmc_bus.

This patch enables the mmc_bus to handle this sequence properly. A new
.shutdown callback is added in the mmc_driver struct which is used to
shutdown the blk device.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Ulf Hansson
2013-06-10 17:03:40 +02:00
committed by Chris Ball
parent 986892ca78
commit 7628774851
4 changed files with 28 additions and 2 deletions
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9
drivers/mmc/core/bus.c
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@@ -122,6 +122,14 @@ static int mmc_bus_remove(struct device *dev)
return 0;
}
static void mmc_bus_shutdown(struct device *dev)
{
struct mmc_driver *drv = to_mmc_driver(dev->driver);
struct mmc_card *card = mmc_dev_to_card(dev);
drv->shutdown(card);
}
#ifdef CONFIG_PM_SLEEP
static int mmc_bus_suspend(struct device *dev)
{
@@ -205,6 +213,7 @@ static struct bus_type mmc_bus_type = {
.uevent = mmc_bus_uevent,
.probe = mmc_bus_probe,
.remove = mmc_bus_remove,
.shutdown = mmc_bus_shutdown,
.pm = &mmc_bus_pm_ops,
};