From: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
By adding an optional .shutdown callback to the bus_ops struct we
provide the possibility to let each bus type handle it's shutdown
requirements.
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
---
drivers/mmc/core/bus.c | 9 +++++++++
drivers/mmc/core/core.h | 1 +
2 files changed, 10 insertions(+)
diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 219bf4b..4c0decf 100644
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -126,8 +126,17 @@ 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);
+ struct mmc_host *host = card->host;
+ int ret;
drv->shutdown(card);
+
+ if (host->bus_ops->shutdown) {
+ ret = host->bus_ops->shutdown(host);
+ if (ret)
+ pr_warn("%s: error %d during shutdown\n",
+ mmc_hostname(host), ret);
+ }
}
#ifdef CONFIG_PM_SLEEP
diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
index 79f37cf..5345d15 100644
--- a/drivers/mmc/core/core.h
+++ b/drivers/mmc/core/core.h
@@ -26,6 +26,7 @@ struct mmc_bus_ops {
int (*power_save)(struct mmc_host *);
int (*power_restore)(struct mmc_host *);
int (*alive)(struct mmc_host *);
+ int (*shutdown)(struct mmc_host *);
};
void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
--
1.7.10
--
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