Re: [PATCH v1 1/2] driver core: fw_devlink: Add support for FWNODE_FLAG_BROKEN_PARENT

Andrew Lunn
2021-08-27T20:11:29Z

> > I've not yet looked at plain Ethernet drivers. This pattern could also
> > exist there. And i wonder about other complex structures, i2c bus
> > multiplexors, you can have interrupt controllers as i2c devices,
> > etc. So the general case could exist in other places.
>
> I haven't seen any generic issues like this reported so far. It's only
> after adding phy-handle that we are hitting these issues with DSA
> switches.

Can you run your parser over the 2250 DTB blobs and see how many
children have dependencies on a parent? That could give us an idea how
many moles need whacking. And maybe, where in the tree they are
hiding?

Andrew