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>
.get_cd = mmci_get_cd,
};
.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;
static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
{
struct mmci_platform_data *plat = dev->dev.platform_data;
if (host->vcc == NULL)
mmc->ocr_avail = plat->ocr_mask;
mmc->caps = plat->capabilities;
if (host->vcc == NULL)
mmc->ocr_avail = plat->ocr_mask;
mmc->caps = plat->capabilities;
+ mmc->caps |= MMC_CAP_NEEDS_POLL;
writel(MCI_IRQENABLE, host->base + MMCIMASK0);
amba_set_drvdata(dev, mmc);
writel(MCI_IRQENABLE, host->base + MMCIMASK0);
amba_set_drvdata(dev, mmc);
- host->oldstat = mmci_get_cd(host->mmc);
mmc_hostname(mmc), amba_rev(dev), amba_config(dev),
(unsigned long long)dev->res.start, dev->irq[0], dev->irq[1]);
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);
-
if (mmc) {
struct mmci_host *host = mmc_priv(mmc);
if (mmc) {
struct mmci_host *host = mmc_priv(mmc);
- del_timer_sync(&host->timer);
-
mmc_remove_host(mmc);
writel(0, host->base + MMCIMASK0);
mmc_remove_host(mmc);
writel(0, host->base + MMCIMASK0);