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mmc: deprecate mmc bus topology

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The classic MMC bus was defined as multi card bus
system, which is reflected in the design in the MMC
layer.

When SD showed up, the bus topology was abandoned
and a star topology (one card per host) was mandated.
MMC version 4 has followed this, officially deprecating
the bus topology.

As we do not have any known users of the bus
topology we can remove support for it. This will
simplify the code and rectify some incorrect
assumptions in the newer additions.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Pierre Ossman
2007-01-03 19:47:29 +01:00
parent b5af25bee2
commit b855885e3b
5 changed files with 438 additions and 593 deletions
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9
include/linux/mmc/mmc.h
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@@ -8,7 +8,6 @@
#ifndef MMC_H
#define MMC_H
#include <linux/list.h>
#include <linux/interrupt.h>
#include <linux/device.h>
@@ -107,13 +106,7 @@ extern int mmc_wait_for_app_cmd(struct mmc_host *, unsigned int,
extern void mmc_set_data_timeout(struct mmc_data *, const struct mmc_card *, int);
extern int __mmc_claim_host(struct mmc_host *host, struct mmc_card *card);
static inline void mmc_claim_host(struct mmc_host *host)
{
__mmc_claim_host(host, (struct mmc_card *)-1);
}
extern void mmc_claim_host(struct mmc_host *host);
extern void mmc_release_host(struct mmc_host *host);
#endif