Hi, While working with "permanent" mmc/sdio devices we may want to skip new suspend/resume functionality.
commit 4c40080bb1d4f68000b7a4c397c1bc8a623668fa Author: Dmitry Shmidt <[email protected]> Date: Mon Oct 11 11:28:54 2010 -0700 mmc: Add "ignore mmc pm notify" functionality Signed-off-by: Dmitry Shmidt <[email protected]> diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index d80cfdc..ba684e6 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -137,7 +137,8 @@ int mmc_add_host(struct mmc_host *host) #endif mmc_start_host(host); - register_pm_notifier(&host->pm_notify); + if (!(host->pm_flags & MMC_PM_IGNORE_PM_NOTIFY)) + register_pm_notifier(&host->pm_notify); return 0; } @@ -154,7 +155,9 @@ EXPORT_SYMBOL(mmc_add_host); */ void mmc_remove_host(struct mmc_host *host) { - unregister_pm_notifier(&host->pm_notify); + if (!(host->pm_flags & MMC_PM_IGNORE_PM_NOTIFY)) + unregister_pm_notifier(&host->pm_notify); + mmc_stop_host(host); #ifdef CONFIG_DEBUG_FS diff --git a/include/linux/mmc/pm.h b/include/linux/mmc/pm.h index d37aac4..3903823 100644 --- a/include/linux/mmc/pm.h +++ b/include/linux/mmc/pm.h @@ -26,5 +26,6 @@ typedef unsigned int mmc_pm_flag_t; #define MMC_PM_KEEP_POWER (1 << 0) /* preserve card power during suspend */ #define MMC_PM_WAKE_SDIO_IRQ (1 << 1) /* wake up host system on SDIO IRQ assertion */ +#define MMC_PM_IGNORE_PM_NOTIFY (1 << 2) /* ignore mmc pm notify */ #endif -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
