[PATCH v2 08/11] iio:magn: device settings are set immediately during probe

[Denis Ciocca <denis.ciocca@xxxxxx>]

This patch set magn settings right after probe start. This is
done in preparation of regmap that needs different configuration
based on multiread bit value.

Signed-off-by: Denis Ciocca <denis.ciocca@xxxxxx>
---
Changes in v2:
 not there in v1.

 drivers/iio/magnetometer/st_magn_i2c.c | 18 ++++++++++++++----
 drivers/iio/magnetometer/st_magn_spi.c | 16 +++++++++++++---
 2 files changed, 27 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/magnetometer/st_magn_i2c.c b/drivers/iio/magnetometer/st_magn_i2c.c
index 4d014fd1aeb0..d5d565639bed 100644
--- a/drivers/iio/magnetometer/st_magn_i2c.c
+++ b/drivers/iio/magnetometer/st_magn_i2c.c
@@ -55,19 +55,29 @@ MODULE_DEVICE_TABLE(of, st_magn_of_match);
 #endif
 
 static int st_magn_i2c_probe(struct i2c_client *client,
-						const struct i2c_device_id *id)
+			     const struct i2c_device_id *id)
 {
-	struct iio_dev *indio_dev;
+	const struct st_sensor_settings *settings;
 	struct st_sensor_data *mdata;
+	struct iio_dev *indio_dev;
 	int err;
 
+	st_sensors_of_name_probe(&client->dev, st_magn_of_match,
+				 client->name, sizeof(client->name));
+
+	settings = st_magn_get_settings(client->name);
+	if (!settings) {
+		dev_err(&client->dev, "device name %s not recognized.\n",
+			client->name);
+		return -ENODEV;
+	}
+
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*mdata));
 	if (!indio_dev)
 		return -ENOMEM;
 
 	mdata = iio_priv(indio_dev);
-	st_sensors_of_name_probe(&client->dev, st_magn_of_match,
-				 client->name, sizeof(client->name));
+	mdata->sensor_settings = (struct st_sensor_settings *)settings;
 
 	st_sensors_i2c_configure(indio_dev, client, mdata);
 
diff --git a/drivers/iio/magnetometer/st_magn_spi.c b/drivers/iio/magnetometer/st_magn_spi.c
index 0d47070611b1..a3045afc6b53 100644
--- a/drivers/iio/magnetometer/st_magn_spi.c
+++ b/drivers/iio/magnetometer/st_magn_spi.c
@@ -51,18 +51,28 @@ MODULE_DEVICE_TABLE(of, st_magn_of_match);
 
 static int st_magn_spi_probe(struct spi_device *spi)
 {
-	struct iio_dev *indio_dev;
+	const struct st_sensor_settings *settings;
 	struct st_sensor_data *mdata;
+	struct iio_dev *indio_dev;
 	int err;
 
+	st_sensors_of_name_probe(&spi->dev, st_magn_of_match,
+				 spi->modalias, sizeof(spi->modalias));
+
+	settings = st_magn_get_settings(spi->modalias);
+	if (!settings) {
+		dev_err(&spi->dev, "device name %s not recognized.\n",
+			spi->modalias);
+		return -ENODEV;
+	}
+
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*mdata));
 	if (!indio_dev)
 		return -ENOMEM;
 
 	mdata = iio_priv(indio_dev);
+	mdata->sensor_settings = (struct st_sensor_settings *)settings;
 
-	st_sensors_of_name_probe(&spi->dev, st_magn_of_match,
-				 spi->modalias, sizeof(spi->modalias));
 	st_sensors_spi_configure(indio_dev, spi, mdata);
 
 	err = st_magn_common_probe(indio_dev);
-- 
2.22.0