2 files changed, 15 insertions, 2 deletions

diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c
index fe7775b..df40452 100644
--- a/drivers/iio/common/st_sensors/st_sensors_buffer.c
+++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c
@@ -30,7 +30,9 @@ static int st_sensors_get_buffer_element(struct iio_dev *indio_dev, u8 *buf)
 
 	for_each_set_bit(i, indio_dev->active_scan_mask, num_data_channels) {
 		const struct iio_chan_spec *channel = &indio_dev->channels[i];
-		unsigned int bytes_to_read = channel->scan_type.realbits >> 3;
+		unsigned int bytes_to_read =
+			DIV_ROUND_UP(channel->scan_type.realbits +
+				     channel->scan_type.shift, 8);
 		unsigned int storage_bytes =
 			channel->scan_type.storagebits >> 3;
 
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 975a1f1..79c8c7c 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -401,6 +401,15 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
 			return err;
 	}
 
+	/* set DAS */
+	if (sdata->sensor_settings->das.addr) {
+		err = st_sensors_write_data_with_mask(indio_dev,
+					sdata->sensor_settings->das.addr,
+					sdata->sensor_settings->das.mask, 1);
+		if (err < 0)
+			return err;
+	}
+
 	if (sdata->int_pin_open_drain) {
 		dev_info(&indio_dev->dev,
 			 "set interrupt line to open drain mode\n");
@@ -483,8 +492,10 @@ static int st_sensors_read_axis_data(struct iio_dev *indio_dev,
 	int err;
 	u8 *outdata;
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
-	unsigned int byte_for_channel = ch->scan_type.realbits >> 3;
+	unsigned int byte_for_channel;
 
+	byte_for_channel = DIV_ROUND_UP(ch->scan_type.realbits +
+					ch->scan_type.shift, 8);
 	outdata = kmalloc(byte_for_channel, GFP_KERNEL);
 	if (!outdata)
 		return -ENOMEM;