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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-08-19 09:41:24 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-08-19 09:41:24 +0100
commit00b137cfda5276b3d2c87d44236fe4c5ee68b405 (patch)
tree2ecf68ba041d4cb94be9bf6b5e640a94ee0974a2 /drivers/mmc/mmc.c
parentd366b6436386875b1310ce8f70e3f9dea4647bac (diff)
[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>
Diffstat (limited to 'drivers/mmc/mmc.c')
-rw-r--r--drivers/mmc/mmc.c23
1 files changed, 10 insertions, 13 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index e02e5df80be9..3c5904834fe8 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -796,17 +796,13 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
{
struct mmc_host *host;
- host = kmalloc(sizeof(struct mmc_host) + extra, GFP_KERNEL);
+ host = mmc_alloc_host_sysfs(extra, dev);
if (host) {
- memset(host, 0, sizeof(struct mmc_host) + extra);
-
spin_lock_init(&host->lock);
init_waitqueue_head(&host->wq);
INIT_LIST_HEAD(&host->cards);
INIT_WORK(&host->detect, mmc_rescan, host);
- host->dev = dev;
-
/*
* By default, hosts do not support SGIO or large requests.
* They have to set these according to their abilities.
@@ -828,15 +824,15 @@ EXPORT_SYMBOL(mmc_alloc_host);
*/
int mmc_add_host(struct mmc_host *host)
{
- static unsigned int host_num;
+ int ret;
- snprintf(host->host_name, sizeof(host->host_name),
- "mmc%d", host_num++);
-
- mmc_power_off(host);
- mmc_detect_change(host);
+ ret = mmc_add_host_sysfs(host);
+ if (ret == 0) {
+ mmc_power_off(host);
+ mmc_detect_change(host);
+ }
- return 0;
+ return ret;
}
EXPORT_SYMBOL(mmc_add_host);
@@ -859,6 +855,7 @@ void mmc_remove_host(struct mmc_host *host)
}
mmc_power_off(host);
+ mmc_remove_host_sysfs(host);
}
EXPORT_SYMBOL(mmc_remove_host);
@@ -872,7 +869,7 @@ EXPORT_SYMBOL(mmc_remove_host);
void mmc_free_host(struct mmc_host *host)
{
flush_scheduled_work();
- kfree(host);
+ mmc_free_host_sysfs(host);
}
EXPORT_SYMBOL(mmc_free_host);