LP5562: The problem about driver on linux

Hi,

Refer to https://www.ti.com/tool/LP5562SW-LINUX, I enable lp5562 led driver on linux-4.4, but it don't have engines(like select_engine, engine_mux...).

Before it worked well on linux-4.9, with the same steps.

So how make lp5562 work on linux-4.4?

Marten