[PATCH v2 09/10] iio: adc: mcp3911: make use of the sign bit

Marcus Folkesson
2022-06-25T10:37:35Z

The device supports negative values as well.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
---

Notes:
v2:
- No changes

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 a0609d7663e1..a019264e73e3 100644
--- a/drivers/iio/adc/mcp3911.c
+++ b/drivers/iio/adc/mcp3911.c
@@ -144,6 +144,8 @@ static int mcp3911_read_raw(struct iio_dev *indio_dev,
if (ret)
goto out;

+ *val = sign_extend32(*val, 23);
+
ret = IIO_VAL_INT;
break;

--
2.36.1