Adding a CLK_OUT pin to a device tree?

[aquilliam]

Hello,
I have an STM32WB running Zephyr and I would like to provide a 40Mhz clock signal to a peripheral from the MCU. I can do this using STM's raw registers, but I have no idea how to do it in Zephyr, I haven't been able to find any examples of configuring a clock out pin.

[erwango]

This is actually a work on progress but functional.
See #31912
And you'd need something like: #60388