Hi Dong, I saw your sdhci-esdhc-imx driver supported the power management. I am assuming you have a working power management on your kernel. I would like to know which kernel has a working power management for iMX6?. Regards, john -- 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