diff options
| author | Anti Sullin <anti.sullin@artecdesign.ee> | 2007-08-30 16:15:16 +0200 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2007-09-11 17:21:51 +0200 |
| commit | e0cda54e4414e98f0bf72116d8522f4e434f6b4b (patch) | |
| tree | e875e7dad2dacf9a009208a1202ba5d7435e2e2a /drivers/mmc/host/at91_mci.c | |
| parent | sdhci: tell which spurious interrupt we got (diff) | |
| download | linux-e0cda54e4414e98f0bf72116d8522f4e434f6b4b.tar.xz linux-e0cda54e4414e98f0bf72116d8522f4e434f6b4b.zip | |
bug in AT91 MCI suspend routines
This patch fixes a bug in AT91 mmc host driver, that enables the wakeup
from suspend on card detection pin even if the card detect pin is not
available (==0). If not card detection pin is defined, IRQ0 == FIQ gets
enabled and if some activity is present on that pin, the system gets a
FIQ request, that causes a crash.
Signed-off-by: Anti Sullin <anti.sullin@artecdesign.ee>
Signed-off-by: Nicolas Ferre <nicolas.ferre@rfo.atmel.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc/host/at91_mci.c')
| -rw-r--r-- | drivers/mmc/host/at91_mci.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c index bfebd2fa7ada..955ea60583b5 100644 --- a/drivers/mmc/host/at91_mci.c +++ b/drivers/mmc/host/at91_mci.c @@ -941,7 +941,7 @@ static int __exit at91_mci_remove(struct platform_device *pdev) host = mmc_priv(mmc); - if (host->present != -1) { + if (host->board->det_pin) { device_init_wakeup(&pdev->dev, 0); free_irq(host->board->det_pin, host); cancel_delayed_work(&host->mmc->detect); @@ -972,7 +972,7 @@ static int at91_mci_suspend(struct platform_device *pdev, pm_message_t state) struct at91mci_host *host = mmc_priv(mmc); int ret = 0; - if (device_may_wakeup(&pdev->dev)) + if (host->board->det_pin && device_may_wakeup(&pdev->dev)) enable_irq_wake(host->board->det_pin); if (mmc) @@ -987,7 +987,7 @@ static int at91_mci_resume(struct platform_device *pdev) struct at91mci_host *host = mmc_priv(mmc); int ret = 0; - if (device_may_wakeup(&pdev->dev)) + if (host->board->det_pin && device_may_wakeup(&pdev->dev)) disable_irq_wake(host->board->det_pin); if (mmc) |