Can we change that gpio from input to output state (or from spi to i2c...) while the program is running or edit it directly in the dts file and then flash the program to the hardware?
You can also edit the gpio configurations directly in the dts file.. But again, it is not recommended, as using an overlay is always the best option since the default settings will be retained in that case and will be easier for better debugging in case of any erors. Any free gpio pins can be used for spi, uart etc.
Can we change that gpio from input to output state (or from spi to i2c...) while the program is running or edit it directly in the dts file and then flash the program to the hardware?
You can also edit the gpio configurations directly in the dts file.. But again, it is not recommended, as using an overlay is always the best option since the default settings will be retained in that case and will be easier for better debugging in case of any erors. Any free gpio pins can be used for spi, uart etc.
