application specific pin multiplexing (for STM32F412G-Disco)

Massimiliano Cialdi

Sto sviluppando una pplicazione grafica che gira su STM32F412G-Discovery.
For this purpose, I must set the multiplexing of some pins to use the FSMC device.
I wonder if I need to edit the files zephyr/boards/boards/arm/stm32f412g_disco/pinmux. c and zephyr/dts/arm/st/stm32f412-pinctrl. dtsi or there is a way to do this by editing only files in the application directory, without touching the files inside zephyr.
If I need to edit zephyr files, what are the rules to follow to make my changes live with the system settings?

best regards

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