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iio:common:st_sensors: add st_sensors_get_settings_index() helper function

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Extract from st_sensors_check_device_support() function the code that
is used to get the specific settings for a device. This will be used
as generic extractor by each ST driver.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Denis Ciocca
2019-07-18 15:53:43 -07:00
committed by Jonathan Cameron
parent f53199c0bc
commit a090965b88
2 changed files with 38 additions and 15 deletions
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4
include/linux/iio/common/st_sensors.h
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@@ -334,6 +334,10 @@ int st_sensors_set_fullscale_by_gain(struct iio_dev *indio_dev, int scale);
int st_sensors_read_info_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *ch, int *val);
int st_sensors_get_settings_index(const char *name,
const struct st_sensor_settings *list,
const int list_length);
int st_sensors_check_device_support(struct iio_dev *indio_dev,
int num_sensors_list, const struct st_sensor_settings *sensor_settings);