Re: [PATCH v2 3/7] mfd: add support for sun6i PRCM (Power/Reset/Clock Management) unit

[Lee Jones]

> >>>>>>> +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.
> >> Ah okay, I'll bow to your knowledge.  So there's no reason for this
> >> driver to ever call mfd_remove_devices() then?
> > No, this is an integral part of the SOC, which never gets removed in any way.
> 
> Lee, I'm about to send a 3rd version of this series, is it okay for you
> if I leave the remove function unimplemented ?

It is.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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