Hi, On 05/09/2014 09:12 AM, Lee Jones wrote: >>>> +static struct platform_driver sun6i_prcm_driver = { >>>> + .driver = { >>>> + .name = "sun6i-prcm", >>>> + .owner = THIS_MODULE, >>>> + .of_match_table = sun6i_prcm_dt_ids, >>>> + }, >>>> + .probe = sun6i_prcm_probe, >>> You need a .remove() call-back. >> >> This driver cannot be compiled as module (see the Kconfig definition) >> and the devices are not hotpluggable, as a result a probed device will >> never be removed. >> >> Do you still want me to implement the remove function ? > > .remove() also be run on shut down. That is not true, if your device needs to do anything special at shutdown you need to add a shutdown callback. Devices are kept as is (not torn down) on shutdown. > It's best practice to have one. > >>>> +module_platform_driver(sun6i_prcm_driver); >>>> + >>>> +MODULE_AUTHOR("Boris BREZILLON <boris.brezillon@xxxxxxxxxxxxxxxxxx>"); >>>> +MODULE_DESCRIPTION("Allwinner sun6i PRCM driver"); >>>> +MODULE_LICENSE("GPL v2"); >> > Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html