iio:adc: Add support for AD7766/AD7767
Add support for the AD7766, AD7766-1, AD7766-2, AD7767, AD7767-1, AD7767-2 Analog to Digital converters. It's a family of single channel 24-bit SAR ADCs. They are all digital interface compatible and the main difference is the internal decimation rate and analog performance. For communication with the host processor a SPI interface is used. In addition the part has a data ready pin that is pulsed for one MCLK cycle when a conversion has completed and can be used as a IIO trigger. Datasheets: http://www.analog.com/media/en/technical-documentation/data-sheets/AD7766.pdf http://www.analog.com/media/en/technical-documentation/data-sheets/AD7767.pdfSigned-off-by: NLars-Peter Clausen <lars@metafoo.de> Signed-off-by: NJonathan Cameron <jic23@kernel.org>
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drivers/iio/adc/ad7766.c
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