iio: adc: mcp3911: make use of the sign bit

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The device supports negative values as well.

Fixes: 3a89b289df ("iio: adc: add support for mcp3911")
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220722130726.7627-2-marcus.folkesson@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Marcus Folkesson 2022-07-22 15:07:18 +02:00 • committed by Jonathan Cameron

parent 568035b01c

commit 8f89e33bf0

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drivers/iio/adc/mcp3911.c

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