On Thu, Sep 6, 2018 at 1:09 PM Bartosz Golaszewski [off-list ref] wrote:

Do we even need DT bindings for this? Device tree bindings mean that
we commit to a stable interface so that once a device with given DT
blob is released, it will work on every future kernel. Also: DT should
only include information about actual HW, not operating system
concepts. Meanwhile this is for testing purposes only and it won't end
up in any actual DT source file upstream.

Hm that relates to another discussion I have with the DT maintainers
about a virtualized display panel.

I do not know how the DT maintainers feel about supporting things
in the kernel that uses DT infrastructure and specially tailored
device trees but include elements with no formal device tree
bindings. Would be interesting to hear their thoughts on this.

Yours,
Linus Walleij