diff options
Diffstat (limited to 'drivers/mmc/core/core.c')
-rw-r--r-- | drivers/mmc/core/core.c | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 833b6eecc426..986fc225f19a 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2394,80 +2394,6 @@ void mmc_stop_host(struct mmc_host *host) mmc_release_host(host); } -#ifdef CONFIG_PM_SLEEP -/* Do the card removal on suspend if card is assumed removeable - * Do that in pm notifier while userspace isn't yet frozen, so we will be able - to sync the card. -*/ -static int mmc_pm_notify(struct notifier_block *notify_block, - unsigned long mode, void *unused) -{ - struct mmc_host *host = container_of( - notify_block, struct mmc_host, pm_notify); - unsigned long flags; - int err = 0; - - switch (mode) { - case PM_HIBERNATION_PREPARE: - case PM_SUSPEND_PREPARE: - case PM_RESTORE_PREPARE: - spin_lock_irqsave(&host->lock, flags); - host->rescan_disable = 1; - spin_unlock_irqrestore(&host->lock, flags); - cancel_delayed_work_sync(&host->detect); - - if (!host->bus_ops) - break; - - /* Validate prerequisites for suspend */ - if (host->bus_ops->pre_suspend) - err = host->bus_ops->pre_suspend(host); - if (!err) - break; - - if (!mmc_card_is_removable(host)) { - dev_warn(mmc_dev(host), - "pre_suspend failed for non-removable host: " - "%d\n", err); - /* Avoid removing non-removable hosts */ - break; - } - - /* Calling bus_ops->remove() with a claimed host can deadlock */ - host->bus_ops->remove(host); - mmc_claim_host(host); - mmc_detach_bus(host); - mmc_power_off(host); - mmc_release_host(host); - host->pm_flags = 0; - break; - - case PM_POST_SUSPEND: - case PM_POST_HIBERNATION: - case PM_POST_RESTORE: - - spin_lock_irqsave(&host->lock, flags); - host->rescan_disable = 0; - spin_unlock_irqrestore(&host->lock, flags); - _mmc_detect_change(host, 0, false); - - } - - return 0; -} - -void mmc_register_pm_notifier(struct mmc_host *host) -{ - host->pm_notify.notifier_call = mmc_pm_notify; - register_pm_notifier(&host->pm_notify); -} - -void mmc_unregister_pm_notifier(struct mmc_host *host) -{ - unregister_pm_notifier(&host->pm_notify); -} -#endif - /* * mmc_first_nonreserved_index() - get the first index that * is not reserved |