On Mon, 11 Oct 2010, Dmitry Shmidt wrote: > Hi, > > While working with "permanent" mmc/sdio devices we may want to skip new > suspend/resume functionality.
Why ?? > > 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 > -- 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
