On 16/11/2023 09:32, Shengjiu Wang wrote: >>> +MODULE_DESCRIPTION("Freescale ASRC M2M driver"); >>> +MODULE_ALIAS("platform:" M2M_DRV_NAME); >> >> You should not need MODULE_ALIAS() in normal cases. If you need it, >> usually it means your device ID table is wrong (e.g. misses either >> entries or MODULE_DEVICE_TABLE()). MODULE_ALIAS() is not a substitute >> for incomplete ID table. > > > This driver don't have MODULE_DEVICE_TABLE. it is only registered > by platform_device_register_data(). Which is the problem. I thought I made myself clear but if it is not the case: drop MODULE_ALIAS. Best regards, Krzysztof