I have tested this patch series for use with pocketbeagle 2 connector 
driver [0]. To get a better idea how it looks in real devicetree, see 
the base tree [1] and the overlay [2]. Since it also used gpio and pwm 
nexus nodes, along with providing pinmux for pins, it can provide a 
better picture of how the different pieces (export-symbols, nexus nodes, 
etc) look when combined.


I also have a question for Herve. Do you already have any working 
patches for similar extension for SPI and UART in some private tree?


[0]: https://github.com/Ayush1325/linux/tree/beagle-cape-v1

[1]: 
https://github.com/Ayush1325/BeagleBoard-DeviceTrees/commit/bf9d981ebf5f1a5704df1e7deba2188c70eb5d6f

[2]: 
https://github.com/Ayush1325/linux/commit/4ebc8467c98b5df3c30935e1d3736f9a64c1b08d


Tested-by: Ayush Singh <redacted>