On Sat, 16 Oct 2021 12:20:22 +0200, Arnaud Ferraris wrote:

A new 'chassis-type' root node property has recently been approved for
the device-tree specification, in order to provide a simple way for
userspace to detect the device form factor and adjust their behavior
accordingly.

This patch fills in this property for end-user devices (such as laptops,
smartphones and tablets) based on Allwinner ARM64 processors.

[...]

Applied to local tree (sunxi/dt-for-5.17).

Thanks!
Maxime