On Mon, Aug 24, 2020 at 06:23:19PM +0800, Gene Chen wrote:

Mark Brown [off-list ref] 於 2020年8月20日 週四 下午7:45寫道：

quoted

This device only exists in the context of a single parent device, there
should be no need for a compatible string here - this is just a detail
of how Linux does things.  The MFD should just instntiate the platform
device.

Trying to autoload module without of_id_table will cause run-time error:
ueventd: LoadWithAliases was unable to load
of:NregulatorT(null)Cmediatek,mt6360-regulator

You shouldn't have this described in the device tree at all, like I say
the MFD should just instantiate the platform device.