On Fri, Jun 26, 2020 at 01:54:33PM +0200, Maxime Ripard wrote:

The RaspberryPi firmware binding uses two compatible, include simple-bus.
The select statement generated by default will thus select any node that
has simple-bus, not all of them being the raspberrypi firmware node.

This results in warnings being wrongfully reported. Let's add a custom
select statement to fix that.

Fixes: 5bc0b9be8544 ("dt-bindings: arm: bcm: Convert BCM2835 firmware binding to YAML")
Signed-off-by: Maxime Ripard <redacted>

---

The original binding has been merged through the clock tree, so it should
be merged there.

Even though the original binding (and the DT) are using the simple-bus
compatible, this creates some DTC warnings since the firmware really isn't
a bus, so the node name doesn't match what a bus should have, none of the
children have a reg property, #address-cells and #size-cells are missing,
etc.

I can only guess that simple-bus was used to make the sub-devices probe,
but maybe simple-mfd would be more appropriate here?

As these are not mmio devices, I think simple-mfd is better.