OPT4001-Q1: Driver support for OPT4001 Q1

Hi Nikhil,

We don't have a driver available for the OPT4001-Q1.

Here is driver code specifically for OPT3001: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/drivers/iio/light/opt3001.c

The code would require many changes in order to work with OPT4001 since the register maps and configuration is much different. The lux calculation is also different for the OPT4001. Please refer to the datasheet for information on how to configure the device.

Jalen