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[ Upstream commitb62e2e1763] For IIO devices that expose both ADC and DAC functionality. Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> Link: https://lore.kernel.org/r/20211205114045.173612-2-cosmin.tanislav@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Stable-dep-of:4f9b80aefb("iio: addac: stx104: Fix race condition when converting analog-to-digital") Signed-off-by: Sasha Levin <sashal@kernel.org>