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[v2,03/13] iio: mma7455: Use scan_type when processing raw data

Message ID 20211104082413.3681212-4-gwendal@chromium.org (mailing list archive)
State Accepted
Headers show
Series iio: Use scan_type shift and realbits when processing raw data | expand

Commit Message

Gwendal Grignou Nov. 4, 2021, 8:24 a.m. UTC 
Use channel definition as root of trust and replace constant
when reading elements directly using the raw sysfs attributes.

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
---
 drivers/iio/accel/mma7455_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/iio/accel/mma7455_core.c b/drivers/iio/accel/mma7455_core.c
index 777c6c384b09e..e6739ba74edfa 100644
--- a/drivers/iio/accel/mma7455_core.c
+++ b/drivers/iio/accel/mma7455_core.c
@@ -134,7 +134,8 @@  static int mma7455_read_raw(struct iio_dev *indio_dev,
 		if (ret)
 			return ret;
 
-		*val = sign_extend32(le16_to_cpu(data), 9);
+		*val = sign_extend32(le16_to_cpu(data),
+				     chan->scan_type.realbits - 1);
 
 		return IIO_VAL_INT;