Thanks Grygorii for information. I checked but do not see dma_init_dev_from_parent is used in linux-next repository. Can you give me more information for what branch I can checkout to use it for USB DWC3? Thanks, Thang -- -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html