[MMC] Add MMC class devices

Create a mmc_host class to allow enumeration of MMC host controllers
even though they have no card(s) inserted.

Patch based on work by Pierre Ossman.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 307862308596..a74a810a1302 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -63,6 +63,7 @@ struct device;
 
 struct mmc_host {
         struct device           *dev;
+        struct class_device     class_dev;
         struct mmc_host_ops     *ops;
         unsigned int            f_min;
         unsigned int            f_max;