support SPI bus connection

modulename: ade7854-spi.ko
configname: CONFIG_ADE7854_SPI

Linux Kernel Configuration
└─> Device Drivers
└─> Staging drivers
└─> IIO staging drivers
└─> Active energy metering IC
└─> SPI support
└─> support SPI bus connection

Say Y here if you have ADE7854/58/68/78 hooked to a SPI bus.

To compile this driver as a module, choose M here: the
module will be called ade7854-spi.

source code: