From: Marius Cristea <marius.cristea@xxxxxxxxxxxxx>
Adding support for Microchip PAC193X series of Power Monitor with
Accumulator chip family. This driver covers the following part numbers:
- PAC1931, PAC1932, PAC1933 and PAC1934
This device is at the boundary between IIO and HWMON (if you are
looking just at the "shunt resistors, vsense, power, energy"). The
device also has ADC internally that can measure voltages (up to 4
channels) and also currents (up to 4 channels). The current is measured as
voltage across the shunt_resistor.
I have started with a simple driver (this one that is more appropriate to be
a HWMON) and willing to add more functionality later (like data buffering that