[PATCH 0/3] arm64: dts: rockchip: Add device tree for the Orange Pi CM5 Base board

[Cristian Ciocaltea]

Hi Laurent,

On 10/2/25 6:47 AM, Laurent Pinchart wrote:
> 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 by adding a new compatible for the board to
> arm/rockchip.yaml. The next patch documents a missing property in the
> rk3588-dw-hdmi-qp bindings that the device tree needs. Finally, the last
> patch adds the device tree.
> 
> Patch 2/3 may be slightly controversial as the new DT property could be
> better named. 

Indeed :-). As a matter of fact I've already planned to introduce it as
"tmds-enable-gpios" [1], during my recent FRL related work.

> It has been supported in the driver for a year now, so
> there could be users in the wild. I have therefore decided to keep the
> current name. I am open to alternative solutions.

As mentioned in [2], this was "inherited" from downstream and hasn't been
really in use so far.  I intended to do some more testing before attempting
to send those patches upstream, as for now I couldn't notice any (obvious)
change in behavior when switching between TMDS and FRL, with or without
making use of it in DT.

Regards,
Cristian

[1] https://gitlab.collabora.com/hardware-enablement/rockchip-3588/linux/-/commit/5a32a84ee3e801daaeb974f967f6e213983feeb4
[2] https://gitlab.collabora.com/hardware-enablement/rockchip-3588/linux/-/commit/df4d94fdb94463dd4175338bf7044b40c5e559e4