[PATCH v2 09/19] ARM64: dts: Add R-Car Salvator-x M3-N support

On Thu, Feb 22, 2018 at 4:38 PM, Simon Horman [off-list ref] wrote:

On Thu, Feb 22, 2018 at 02:28:46PM +0100, Geert Uytterhoeven wrote:

quoted

Removing the .dts file removes the ability to boot the newly added board...

The issue here is that we are sharing board .dtsi for boards that can be
equipped with different pin-compatible SiPs (Ri-Car H3, M3-W, M3-N), while
not all SoC support has been enabled and/or tested. As the board .dtsi
references on-SoC devices using phandles, the new r8a77965.dtsi declares
placeholders for the devices that are not yet enabled/tested.
This worked fine for r8a7796.dtsi before, but causes dtc warnings due to
recent improvements in DT validation.

I think the simplest way to fix this is to add reg properties to the
placeholders, as Simon did for the last two placeholders in r8a7796.dtsi in
commit 4316989537a6ed53 ("arm64: dts: renesas: r8a7796: add reg properties to
pciec[01] nodes").

I think the best solution is an incremental patch on top of the renesas
devel branch to, as Geert suggests, add reg properties to the placeholders.

I've asked Jacopo to prepare such a patch.

Sounds good, thanks a lot for the quick reply!

     Arnd