As pointed out by Wolfram Sang and already discussed at LKML [1] - an mmc host driver may allow to unbind from its corresponding host device. If there is and eMMC/SD card attached to the host, the mmc core will just try to cut the power for it, without trying to make a graceful power-off, thus potentially we could damage the card. This series intends to fix this problem for eMMC/SD cards. Please help to test and review! Kind regards Ulf Hansson [1] https://lore.kernel.org/all/20241007093447.33084-2-wsa+renesas@xxxxxxxxxxxxxxxxxxxx/ Ulf Hansson (5): mmc: core: Convert mmc_can_poweroff_notify() into a bool mmc: core: Further avoid re-storing power to the eMMC before a shutdown mmc: core: Convert into an enum for the poweroff-type for eMMC mmc: core: Add support for graceful host removal for eMMC mmc: core: Add support for graceful host removal for SD drivers/mmc/core/mmc.c | 66 +++++++++++++++++++++++++++++------------- drivers/mmc/core/sd.c | 25 +++++++++------- 2 files changed, 61 insertions(+), 30 deletions(-) -- 2.43.0
