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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> |
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| .. | ||
| bus.c | ||
| bus.h | ||
| core.c | ||
| core.h | ||
| debugfs.c | ||
| host.c | ||
| host.h | ||
| Kconfig | ||
| Makefile | ||
| mmc_ops.c | ||
| mmc_ops.h | ||
| mmc.c | ||
| sd_ops.c | ||
| sd_ops.h | ||
| sd.c | ||
| sd.h | ||
| sdio_bus.c | ||
| sdio_bus.h | ||
| sdio_cis.c | ||
| sdio_cis.h | ||
| sdio_io.c | ||
| sdio_irq.c | ||
| sdio_ops.c | ||
| sdio_ops.h | ||
| sdio.c | ||