[PATCH/RFC 07/17] iio: st_sensors: Use bitfield helpers

Geert Uytterhoeven
2021-11-22T15:55:50Z

Use the field_prep() helper, instead of open-coding the same operation.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
Compile-tested only.
Marked RFC, as this depends on [PATCH 01/17], but follows a different
path to upstream.
---
drivers/iio/common/st_sensors/st_sensors_core.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 1de395bda03eb6d3..b11c3f474d299b96 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -7,6 +7,7 @@
* Denis Ciocca <denis.ciocca@st.com>
*/

+#include <linux/bitfield.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -26,8 +27,8 @@ int st_sensors_write_data_with_mask(struct iio_dev *indio_dev,
{
struct st_sensor_data *sdata = iio_priv(indio_dev);

- return regmap_update_bits(sdata->regmap,
- reg_addr, mask, data << __ffs(mask));
+ return regmap_update_bits(sdata->regmap, reg_addr, mask,
+ field_prep(mask, data));
}

int st_sensors_debugfs_reg_access(struct iio_dev *indio_dev,
--
2.25.1