diff mbox series

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

Message ID 20220623170844.2189814-9-marcus.folkesson@gmail.com (mailing list archive)
State Changes Requested
Headers show
Series [01/10] iio: adc: mcp3911: correct "microchip,device-addr" property | expand

Commit Message

Marcus Folkesson June 23, 2022, 5:08 p.m. UTC 
The device supports negative values as well.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
---
 drivers/iio/adc/mcp3911.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c
index aefc5eac874c..084f6d1aa6d1 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;