lkml.org 
[lkml]   [2018]   [Mar]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 6/9] Staging: iio: accel: adis16201: Use sign_extend32 function
Date
Use sign_extned32() for 32 bit sign extending rather than hard coding.

Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
---
v2:
-no change in this patch.

drivers/staging/iio/accel/adis16201.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/iio/accel/adis16201.c b/drivers/staging/iio/accel/adis16201.c
index 97150ea..298bf90 100644
--- a/drivers/staging/iio/accel/adis16201.c
+++ b/drivers/staging/iio/accel/adis16201.c
@@ -173,9 +173,8 @@ static int adis16201_read_raw(struct iio_dev *indio_dev,
ret = adis_read_reg_16(st, addr, &val16);
if (ret)
return ret;
- val16 &= (1 << bits) - 1;
- val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
- *val = val16;
+
+ *val = sign_extend32(val16, bits - 1);
return IIO_VAL_INT;
}

--
2.7.4
\
 
 \ /
  Last update: 2018-03-16 21:07    [W:0.127 / U:0.652 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site