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This commit reintroduces interrupt-based card detection previously used in the rts5139 driver. This functionality was removed in commit00d8521dcd("staging: remove rts5139 driver code"). Reintroducing this mechanism fixes presence detection for certain card readers, which with the current driver, will taken approximately 20 seconds to enter S3 as `mmc_rescan` has to be frozen. Fixes:00d8521dcd("staging: remove rts5139 driver code") Cc: stable@vger.kernel.org Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sean Rhodes <sean@starlabs.systems> Link: https://lore.kernel.org/r/20241119085815.11769-1-sean@starlabs.systems Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>