mmc: let host be parent of cards

Change the parent of cards to be a specific host (a class
device), not the physical controller. This is particularly
useful when the hardware has multiple slots, meaning
multiple hosts.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

2 files changed, 2 insertions, 1 deletions

diff --git a/drivers/mmc/mmc_sysfs.c b/drivers/mmc/mmc_sysfs.c
index e334acd045bc..d32698b02d7f 100644
--- a/drivers/mmc/mmc_sysfs.c
+++ b/drivers/mmc/mmc_sysfs.c
@@ -199,7 +199,7 @@ void mmc_init_card(struct mmc_card *card, struct mmc_host *host)
         memset(card, 0, sizeof(struct mmc_card));
         card->host = host;
         device_initialize(&card->dev);
-        card->dev.parent = mmc_dev(host);
+        card->dev.parent = mmc_classdev(host);
         card->dev.bus = &mmc_bus_type;
         card->dev.release = mmc_release_card;
 }
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index dc4c6e395198..ae98d6766bdd 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -127,6 +127,7 @@ static inline void *mmc_priv(struct mmc_host *host)
 }
 
 #define mmc_dev(x)      ((x)->parent)
+#define mmc_classdev(x) (&(x)->class_dev)
 #define mmc_hostname(x) ((x)->class_dev.bus_id)
 
 extern int mmc_suspend_host(struct mmc_host *, pm_message_t);