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mmc: at91_mci: wakeup on card insertion (or removal) 

This piece of code enable the system to be wake-up by a card insertion or removal.

Signed-off-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Nicolas Ferre <nicolas.ferre@rfo.atmel.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Marc Pignat 2007-07-16 11:07:02 +02:00 committed by Pierre Ossman
parent 81764fa9a4
commit 63b6643886
1 changed files with 12 additions and 1 deletions
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13
drivers/mmc/host/at91_mci.c
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@ -903,8 +903,10 @@ static int __init at91_mci_probe(struct platform_device *pdev)
/*
* Add host to MMC layer
*/
if (host->board->det_pin)
if (host->board->det_pin) {
host->present = !at91_get_gpio_value(host->board->det_pin);
device_init_wakeup(&pdev->dev, 1);
}
else
host->present = -1;
@ -940,6 +942,7 @@ static int __exit at91_mci_remove(struct platform_device *pdev)
host = mmc_priv(mmc);
if (host->present != -1) {
device_init_wakeup(&pdev->dev, 0);
free_irq(host->board->det_pin, host);
cancel_delayed_work(&host->mmc->detect);
}
@ -966,8 +969,12 @@ static int __exit at91_mci_remove(struct platform_device *pdev)
static int at91_mci_suspend(struct platform_device *pdev, pm_message_t state)
{
struct mmc_host *mmc = platform_get_drvdata(pdev);
struct at91mci_host *host = mmc_priv(mmc);
int ret = 0;
if (device_may_wakeup(&pdev->dev))
enable_irq_wake(host->board->det_pin);
if (mmc)
ret = mmc_suspend_host(mmc, state);
@ -977,8 +984,12 @@ static int at91_mci_suspend(struct platform_device *pdev, pm_message_t state)
static int at91_mci_resume(struct platform_device *pdev)
{
struct mmc_host *mmc = platform_get_drvdata(pdev);
struct at91mci_host *host = mmc_priv(mmc);
int ret = 0;
if (device_may_wakeup(&pdev->dev))
disable_irq_wake(host->board->det_pin);
if (mmc)
ret = mmc_resume_host(mmc);