diff --git a/drivers/staging/iio/adc/ad7606.h b/drivers/staging/iio/adc/ad7606.h
index 380c56ae6570..cf6be6500bfb 100644
--- a/drivers/staging/iio/adc/ad7606.h
+++ b/drivers/staging/iio/adc/ad7606.h
@@ -15,8 +15,6 @@
 
 /**
  * struct ad7606_platform_data - platform/board specific information
- * @default_os:		default oversampling value {0, 2, 4, 8, 16, 32, 64}
- * @default_range:	default range +/-{5000, 10000} mVolt
  * @gpio_convst:	number of gpio connected to the CONVST pin
  * @gpio_reset:		gpio connected to the RESET pin, if not used set to -1
  * @gpio_range:		gpio connected to the RANGE pin, if not used set to -1
@@ -28,8 +26,6 @@
  */
 
 struct ad7606_platform_data {
-	unsigned int			default_os;
-	unsigned int			default_range;
 	unsigned int			gpio_convst;
 	unsigned int			gpio_reset;
 	unsigned int			gpio_range;
diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index 109364750ac7..a16c6f5a333b 100644
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -452,16 +452,8 @@ struct iio_dev *ad7606_probe(struct device *dev, int irq,
 	st->dev = dev;
 	st->bops = bops;
 	st->base_address = base_address;
-	st->range = pdata->default_range == 10000 ? 10000 : 5000;
-
-	ret = ad7606_oversampling_get_index(pdata->default_os);
-	if (ret < 0) {
-		dev_warn(dev, "oversampling %d is not supported\n",
-			 pdata->default_os);
-		st->oversampling = 0;
-	} else {
-		st->oversampling = pdata->default_os;
-	}
+	st->range = 5000;
+	st->oversampling = 0;
 
 	st->reg = devm_regulator_get(dev, "vcc");
 	if (!IS_ERR(st->reg)) {