| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 06/80] iio: adc: mcp3911: make use of the sign bit | Date | Tue, 6 Sep 2022 15:30:03 +0200 |
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From: Marcus Folkesson <marcus.folkesson@gmail.com>
[ Upstream commit 8f89e33bf040bbef66386c426198622180233178 ]
The device supports negative values as well.
Fixes: 3a89b289df5d ("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> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/iio/adc/mcp3911.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c index e573da5397bb3..81eeb00842112 100644 --- a/drivers/iio/adc/mcp3911.c +++ b/drivers/iio/adc/mcp3911.c @@ -111,6 +111,8 @@ static int mcp3911_read_raw(struct iio_dev *indio_dev, if (ret) goto out; + *val = sign_extend32(*val, 23); + ret = IIO_VAL_INT; break; -- 2.35.1
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