iio: dac: add support for ltc1660

LTC1665/LTC1660 is a 8/10-bit Digital-to-Analog Converter
(DAC) with eight individual channels.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Marcus Folkesson 2018-08-21 21:31:24 +02:00 • committed by Jonathan Cameron
commit 8316cebd1e
3 changed files with 261 additions and 0 deletions