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eac85fbd08
When rtsx_pci suspends, the card reader hardware powers off but the sdmmc driver's prev_power_state remains as MMC_POWER_ON. This causes sd_power_on to skip reinitialization on the next I/O request, leading to DMA transfer timeouts and errors on resume 20% of the time. Add a power_off slot callback so the PCR can notify the sdmmc driver during suspend. The sdmmc driver resets prev_power_state, and sd_request checks this to reinitialize the card before the next I/O. Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev> Link: https://patch.msgid.link/20260105060236.400366-2-matthew.schwartz@linux.dev Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>