iio:pressure: introduce st_press_get_settings() function

The function is introduced to retrieve press device settings. It will be
used by probe in order to configure regmap.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h
index 6a720cfb568629b273c3a6add38e4bcd6b7a3dab..c2e47a6c31187b99219c579056371d8add4acc94 100644 (file)
--- a/drivers/iio/pressure/st_pressure.h
+++ b/drivers/iio/pressure/st_pressure.h
@@ -41,6 +41,7 @@ static const struct st_sensors_platform_data default_press_pdata = {
        .drdy_int_pin = 1,
 };
 
+const struct st_sensor_settings *st_press_get_settings(const char *name);
 int st_press_common_probe(struct iio_dev *indio_dev);
 void st_press_common_remove(struct iio_dev *indio_dev);
 

diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index b960e76f7dfd68e278df6646f443c1f2ef00ca31..35d80ff274648a8fdd2842fc8b2b935fb02b0064 100644 (file)
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -664,6 +664,24 @@ static const struct iio_trigger_ops st_press_trigger_ops = {
 #define ST_PRESS_TRIGGER_OPS NULL
 #endif
 
+/*
+ * st_press_get_settings() - get sensor settings from device name
+ * @name: device name buffer reference.
+ *
+ * Return: valid reference on success, NULL otherwise.
+ */
+const struct st_sensor_settings *st_press_get_settings(const char *name)
+{
+       int index = st_sensors_get_settings_index(name,
+                                       st_press_sensors_settings,
+                                       ARRAY_SIZE(st_press_sensors_settings));
+       if (index < 0)
+               return NULL;
+
+       return &st_press_sensors_settings[index];
+}
+EXPORT_SYMBOL(st_press_get_settings);
+
 int st_press_common_probe(struct iio_dev *indio_dev)
 {
        struct st_sensor_data *press_data = iio_priv(indio_dev);