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| author | Rabin Vincent <rabin.vincent@stericsson.com> | 2010-07-21 12:50:31 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-07-27 10:48:44 +0100 |
| commit | f5e2574e734650bbeb801a31cc99e628f9a027af (patch) | |
| tree | e7705dae6e6be70cc7b20129471c2498f9def7ac /drivers/mmc/host | |
| parent | 528320db013b687c5f0150fd77eb4dc02ca328d1 (diff) | |
| download | kernel_samsung_tuna-f5e2574e734650bbeb801a31cc99e628f9a027af.zip kernel_samsung_tuna-f5e2574e734650bbeb801a31cc99e628f9a027af.tar.gz kernel_samsung_tuna-f5e2574e734650bbeb801a31cc99e628f9a027af.tar.bz2 | |
ARM: 6239/1: mmci: let core poll for card detection
Use the MMC core's ability to poll for card detection. This also has
the advantage of doing the gpio_get_value from a workqueue instead of
timer, allowing the gpio to be on a sleeping gpiochip.
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/mmc/host')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 22 |
1 files changed, 1 insertions, 21 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index ddcfc4c..3eaa0e9 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -567,18 +567,6 @@ static const struct mmc_host_ops mmci_ops = { .get_cd = mmci_get_cd, }; -static void mmci_check_status(unsigned long data) -{ - struct mmci_host *host = (struct mmci_host *)data; - unsigned int status = mmci_get_cd(host->mmc); - - if (status ^ host->oldstat) - mmc_detect_change(host->mmc, 0); - - host->oldstat = status; - mod_timer(&host->timer, jiffies + HZ); -} - static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id) { struct mmci_platform_data *plat = dev->dev.platform_data; @@ -685,6 +673,7 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id) if (host->vcc == NULL) mmc->ocr_avail = plat->ocr_mask; mmc->caps = plat->capabilities; + mmc->caps |= MMC_CAP_NEEDS_POLL; /* * We can do SGIO @@ -750,7 +739,6 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id) writel(MCI_IRQENABLE, host->base + MMCIMASK0); amba_set_drvdata(dev, mmc); - host->oldstat = mmci_get_cd(host->mmc); mmc_add_host(mmc); @@ -758,12 +746,6 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id) mmc_hostname(mmc), amba_rev(dev), amba_config(dev), (unsigned long long)dev->res.start, dev->irq[0], dev->irq[1]); - init_timer(&host->timer); - host->timer.data = (unsigned long)host; - host->timer.function = mmci_check_status; - host->timer.expires = jiffies + HZ; - add_timer(&host->timer); - return 0; irq0_free: @@ -797,8 +779,6 @@ static int __devexit mmci_remove(struct amba_device *dev) if (mmc) { struct mmci_host *host = mmc_priv(mmc); - del_timer_sync(&host->timer); - mmc_remove_host(mmc); writel(0, host->base + MMCIMASK0); |