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[MMC] Add mmc_detect_change() delay support for wbsd driver 

Convert wbsd to use the new delay functionality in mmc_detect_change()
rather than implementing its own timer.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2005-09-10 11:58:21 +01:00 committed by Russell King
parent 87fc767b83
commit c4a72cbdb3
1 changed files with 5 additions and 22 deletions
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27
drivers/mmc/wbsd.c
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@ -1111,20 +1111,6 @@ static void wbsd_reset_ignore(unsigned long data)
spin_unlock_bh(&host->lock);
}
/*
* Helper function for card detection
*/
static void wbsd_detect_card(unsigned long data)
{
struct wbsd_host *host = (struct wbsd_host*)data;
BUG_ON(host == NULL);
DBG("Executing card detection\n");
mmc_detect_change(host->mmc, 0);
}
/*
* Tasklets
*/
@ -1169,14 +1155,16 @@ static void wbsd_tasklet_card(unsigned long param)
DBG("Card inserted\n");
host->flags |= WBSD_FCARD_PRESENT;
spin_unlock(&host->lock);
/*
* Delay card detection to allow electrical connections
* to stabilise.
*/
mod_timer(&host->detect_timer, jiffies + HZ/2);
mmc_detect_change(host->mmc, msecs_to_jiffies(500));
}
spin_unlock(&host->lock);
else
spin_unlock(&host->lock);
}
else if (host->flags & WBSD_FCARD_PRESENT)
{
@ -1409,10 +1397,6 @@ static int __devinit wbsd_alloc_mmc(struct device* dev)
/*
* Set up timers
*/
init_timer(&host->detect_timer);
host->detect_timer.data = (unsigned long)host;
host->detect_timer.function = wbsd_detect_card;
init_timer(&host->ignore_timer);
host->ignore_timer.data = (unsigned long)host;
host->ignore_timer.function = wbsd_reset_ignore;
@ -1454,7 +1438,6 @@ static void __devexit wbsd_free_mmc(struct device* dev)
BUG_ON(host == NULL);
del_timer_sync(&host->ignore_timer);
del_timer_sync(&host->detect_timer);
mmc_free_host(mmc);