Re: [PATCH v2 0/5] arm64: dts: rockchip: Add device tree for the Orange Pi CM5 Base board

[Heiko Stuebner <heiko@sntech.de>]

Hi Laurent,

Am Montag, 6. Oktober 2025, 01:55:36 Mitteleuropäische Sommerzeit schrieb Laurent Pinchart:
> Hello,
> 
> This patch series adds a device tree for the Orange Pi CM5 Base board
> from Xunlong. This is a combination of a compute module and a carrier
> board, so the device tree is split in two files.
> 
> The work is based on a combination of upstream device trees for other
> RK3588-based Orange Pi boards and the downstream device tree, all
> checked against the available schematics for the carrier board. The
> compute module schematics is unfortunately not available.
> 
> The series starts with three patches that add a new tmds-enable-gpios
> property to the rk3588-dw-hdmi-qp DT binding (1/5) and update the driver
> accordingly (2/5 and 3/5). Those patches have been authored by Cristian
> Ciocaltea as part of a larger series, I have incorporated them here
> as-is.
> 
> Patch 4/5 then add a new compatible for the board to arm/rockchip.yaml.
> The last patch (5/5) adds the device tree for the board.
> 
> Patches 2/5 and 3/5 could be merged separately through the DRM tree,
> but patch 1/5 needs to be merged with the device tree in 5/5 to avoid
> introducing DT validation warnings. I'd appreciate advice from the DT
> maintainers regarding how to handle this, as I have been told before
> that DT bindings and DT sources can't be merged through the same tree.

I think we generally only care about binding warnings happening
in linux-next.

I.e. in most cases, the binding is merged with the driver and
the dts then into a separate tree - sort of ignoring the local
binding error, because everything will be fine once stuff comes
together in linux-next.


Speaking of bindings, does your board _need_ the frl-gpio to produce
any hdmi output? Like could we merge the board without the (optional)
gpio and then add it later, once the binding+driver have made it in?

Just me trying to grab the big chunks earlier in the cycle.


Thanks
Heiko