+ * @cd_type: Type of Card Detection method (see cd_types enum above)
+ * @ext_cd_init: Initialize external card detect subsystem. Called on
+ * sdhci-s3c driver probe when cd_type == S3C_SDHCI_CD_EXTERNAL.
+ * notify_func argument is a callback to the sdhci-s3c driver
+ * that triggers the card detection event. Callback arguments:
+ * dev is pointer to platform device of the host controller,
+ * state is new state of the card (0 - removed, 1 - inserted).
+ * @ext_cd_cleanup: Cleanup external card detect subsystem. Called on
+ * sdhci-s3c driver remove when cd_type == S3C_SDHCI_CD_EXTERNAL.
+ * notify_func argument is the same callback as for ext_cd_init.
+ * @ext_cd_gpio: gpio pin used for external CD line, valid only if
+ * cd_type == S3C_SDHCI_CD_GPIO
+ * @ext_cd_gpio_invert: invert values for external CD gpio line