int (*getwp)(struct mmc *mmc);
int (*host_power_cycle)(struct mmc *mmc);
int (*get_b_max)(struct mmc *mmc, void *dst, lbaint_t blkcnt);
+ int (*wait_dat0)(struct mmc *mmc, int state, int timeout_us);
};
static inline int mmc_hs400_prepare_ddr(struct mmc *mmc)