Some board/card/host configurations are not capable of powering off the card after boot. To support such configurations, and to allow smoother transition to runtime PM behavior, MMC_CAP_POWER_OFF_CARD is added, so hosts need to explicitly indicate whether it's OK to power off their cards after boot. SDIO core will enable runtime PM for a card only if that cap is set. As a result, the card will be powered down after boot, and will only be powered up again when a driver is loaded (and then it's up to the driver to decide whether power will be kept or not). This will prevent sdio_bus_probe() failures with setups that do not support powering off the card. Reported-and-tested-by: Daniel Drake <dsd@laptop.org> Reported-and-tested-by: Arnd Hannemann <arnd@arndnet.de> Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Chris Ball <cjb@laptop.org> |
||
|---|---|---|
| .. | ||
| card.h | ||
| core.h | ||
| host.h | ||
| mmc.h | ||
| pm.h | ||
| sd.h | ||
| sdhci-pltfm.h | ||
| sdhci-spear.h | ||
| sdhci.h | ||
| sdio.h | ||
| sdio_func.h | ||
| sdio_ids.h | ||
| sh_mmcif.h | ||