This series re-works the polling mechanism for the rtsx_usb_mmc driver, which
currently relies on pure polling via MMC_CAP_NEEDS_POLL. The problem is simply
that is wastes a lot of energy, while in fact the card detection logic don't
need to use polling.
Do note, this series doesn't work out of the box, as one addtional patch is
needed on the rtsx USB misc driver (runtime resuming the child at card detect).
I leave that for Kai Heng Feng to implement and moreover I rely on tests to be
done, as this series has only been compile tested.
Kind regards
Uffe
Ulf Hansson (4):
mmc: core: Introduce MMC_CAP_SYNC_RUNTIME_PM
mmc: rtsx_usb_sdmmc: Don't runtime resume the device while changing
led
mmc: rtsx_usb_sdmmc: Re-work runtime PM support
mmc: rtsx_usb_sdmmc: Re-work card detection/removal support
drivers/mmc/core/core.c | 5 +++-
drivers/mmc/host/rtsx_usb_sdmmc.c | 43 +++++++++++++++++++++++++------
include/linux/mmc/host.h | 2 +-
3 files changed, 40 insertions(+), 10 deletions(-)
--
2.17.0
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