Hi Seungwon Jeon I see a small issue with the implementation mmc_suspend_host, int mmc_suspend_host(struct mmc_host *host) { ..... err = mmc_cache_ctrl(host, 0); } So, within mmc_suspend_host we are disabling the cache. But I do not see a corresponding enabling of cache within mmc_resume_host. I suggest we have either enabling of cache within mmc_resume_host or within mmc_suspend_host, we replace mmc_cache_ctrl(host, 0) with the flush operation, mmc_flush_cache(host->card). Regards Saugata -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html