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iio: st-sensors: add support for single full scale device 

Some sensors could have only one full scale value. This means that the
sensor hasn't a full scale register. This commit add a check on the
configured full scale address to support such kind of sensors.

Signed-off-by: Giuseppe Barba <giuseppe.barba@st.com>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
hifive-unleashed-5.1
Giuseppe Barba 2015-07-21 10:35:42 +02:00 committed by Jonathan Cameron
parent bc27381edb
commit bb602f8c61
1 changed files with 3 additions and 0 deletions
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3
drivers/iio/common/st_sensors/st_sensors_core.c
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@ -126,6 +126,9 @@ static int st_sensors_set_fullscale(struct iio_dev *indio_dev, unsigned int fs)
int err, i = 0;
struct st_sensor_data *sdata = iio_priv(indio_dev);
if (sdata->sensor_settings->fs.addr == 0)
return 0;
err = st_sensors_match_fs(sdata->sensor_settings, fs, &i);
if (err < 0)
goto st_accel_set_fullscale_error;