The AD7091R-5 is a 12-bit, multichannel, ultralow power, successive approximation analog-to-digital converter (ADC).
Configure kernel with “make menuconfig” (alternatively use “make xconfig” or “make qconfig”)
The AD7091R5 Driver depends on CONFIG_I2C
Linux Kernel Configuration Device Drivers ---> ... <*> Industrial I/O support ---> --- Industrial I/O support ... Analog to digital converters ---> ... <*> Analog Devices AD7091R5 ADC driver ... ... ...
adc@0 { compatible: "adi,ad7091r5"; reg = <0x2F>; };