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635ef601b2
Since the old iio_read_channel_processed() would lose precision if we fall back to reading raw and scaling, we introduce a new API that will pass in a scale factor when reading a processed channel: iio_read_channel_processed_scale(). Refactor iio_read_channel_processed() as a special case with scale factor 1. Cc: Peter Rosin <peda@axentia.se> Cc: Chris Lesiak <chris.lesiak@licor.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: linux-iio@vger.kernel.org Link: https://lore.kernel.org/linux-iio/20201224011607.1059534-1-linus.walleij@linaro.org/ Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20210308100219.2732156-1-linus.walleij@linaro.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>