--- zzzz-none-000/linux-3.10.107/drivers/iio/common/st_sensors/st_sensors_i2c.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/iio/common/st_sensors/st_sensors_i2c.c	2021-02-04 17:41:59.000000000 +0000
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/iio/iio.h>
+#include <linux/of_device.h>
 
 #include <linux/iio/common/st_sensors_i2c.h>
 
@@ -71,11 +72,41 @@
 	indio_dev->dev.parent = &client->dev;
 	indio_dev->name = client->name;
 
+	sdata->dev = &client->dev;
 	sdata->tf = &st_sensors_tf_i2c;
 	sdata->get_irq_data_ready = st_sensors_i2c_get_irq;
 }
 EXPORT_SYMBOL(st_sensors_i2c_configure);
 
+#ifdef CONFIG_OF
+/**
+ * st_sensors_of_i2c_probe() - device tree probe for ST I2C sensors
+ * @client: the I2C client device for the sensor
+ * @match: the OF match table for the device, containing compatible strings
+ *	but also a .data field with the corresponding internal kernel name
+ *	used by this sensor.
+ *
+ * In effect this function matches a compatible string to an internal kernel
+ * name for a certain sensor device, so that the rest of the autodetection can
+ * rely on that name from this point on. I2C client devices will be renamed
+ * to match the internal kernel convention.
+ */
+void st_sensors_of_i2c_probe(struct i2c_client *client,
+			     const struct of_device_id *match)
+{
+	const struct of_device_id *of_id;
+
+	of_id = of_match_device(match, &client->dev);
+	if (!of_id)
+		return;
+
+	/* The name from the OF match takes precedence if present */
+	strncpy(client->name, of_id->data, sizeof(client->name));
+	client->name[sizeof(client->name) - 1] = '\0';
+}
+EXPORT_SYMBOL(st_sensors_of_i2c_probe);
+#endif
+
 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
 MODULE_DESCRIPTION("STMicroelectronics ST-sensors i2c driver");
 MODULE_LICENSE("GPL v2");