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mmc: sdio: don't reinitialize nonremovable powered-resumed cards

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Upon system resume, SDIO core must reinitialize cards that were
powered off during suspend.

If the card had its power kept during suspend (and thus it is
'powered-resumed'), SDIO core performs only a limited reinitializing,
mainly needed to make sure that the card wasn't removed/replaced.

If a __nonremovable__ card is powered-resumed, we can safely skip the
reinitializing phase.

Note: 9b966aa (mmc: sdio: fully reconfigure oldcard on resume) removed
the bus width reconfiguration since mmc_sdio_init_card already does it.
It is brought back now in case mmc_sdio_init_card is skipped.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Ohad Ben-Cohen
2010-11-28 07:21:29 +02:00
committed by Chris Ball
parent e594573d79
commit 080bc9774b
2 changed files with 19 additions and 2 deletions
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5
include/linux/mmc/host.h
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@@ -320,5 +320,10 @@ static inline int mmc_card_is_removable(struct mmc_host *host)
return !(host->caps & MMC_CAP_NONREMOVABLE) && mmc_assume_removable;
}
static inline int mmc_card_is_powered_resumed(struct mmc_host *host)
{
return host->pm_flags & MMC_PM_KEEP_POWER;
}
#endif