mmc: refactor bus operations

Move bus operations to its own file for the sake of clarity. Also
delegate sysfs attributes to bus handlers in preparation for other
more exotic types.

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

1 files changed, 11 insertions, 3 deletions

diff --git a/drivers/mmc/core/sysfs.h b/drivers/mmc/core/sysfs.h
index 80e29b35828..2a326a5b83c 100644
--- a/drivers/mmc/core/sysfs.h
+++ b/drivers/mmc/core/sysfs.h
@@ -11,9 +11,17 @@
 #ifndef _MMC_CORE_SYSFS_H
 #define _MMC_CORE_SYSFS_H
 
-void mmc_init_card(struct mmc_card *card, struct mmc_host *host);
-int mmc_register_card(struct mmc_card *card);
-void mmc_remove_card(struct mmc_card *card);
+#define MMC_ATTR_FN(name, fmt, args...)					\
+static ssize_t mmc_##name##_show (struct device *dev, struct device_attribute *attr, char *buf)	\
+{									\
+	struct mmc_card *card = container_of(dev, struct mmc_card, dev);\
+	return sprintf(buf, fmt, args);					\
+}
+
+#define MMC_ATTR_RO(name) __ATTR(name, S_IRUGO, mmc_##name##_show, NULL)
+
+int mmc_add_attrs(struct mmc_card *card, struct device_attribute *attrs);
+void mmc_remove_attrs(struct mmc_card *card, struct device_attribute *attrs);
 
 struct mmc_host *mmc_alloc_host_sysfs(int extra, struct device *dev);
 int mmc_add_host_sysfs(struct mmc_host *host);