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AM69A: Is there any instruction on how to use the J784S4_IOPAD function in the dts file?

Glendon Chen
Prodigy 60 points
Part Number: AM69A


I want to use the AM69A EVM board's 40-pin UART (J27),
so I edited build/workspace/sources/linux-ti-staging/arch/arm64/boot/dts/ti/k3-am69-sk.dts.

I found the following settings for UART8:
image.png
The EVM board's 40-pin UART is UART5, so I'll refer to the UART8 settings to add a new UART5.

I checked k3-pinctrl.h and found a #define J784S4_IOPAD(pa, val, muxmode) definition,
but no other comments or explanations.

I'd like to know if there's documentation for the J784S4_IOPAD function,
specifically how to query muxmode.