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| author | Marcus Folkesson <marcus.folkesson@gmail.com> | 2022-07-22 16:07:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-08 12:11:36 +0300 |
| commit | e6aeb8be85716d63589414a862bf233483c3e6fe (patch) | |
| tree | 03f127c265cd070cb8e90beedf364b44d0219109 /drivers/iio | |
| parent | b69e05b1e830526f81b75aa87f99d467556d845d (diff) | |
| download | linux-e6aeb8be85716d63589414a862bf233483c3e6fe.tar.xz | |
iio: adc: mcp3911: make use of the sign bit
[ 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>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/mcp3911.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c index e573da5397bb..81eeb0084211 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; |