diff --git a/drivers/staging/iio/adc/ad7606.h b/drivers/staging/iio/adc/ad7606.h
index 39f50440d915..b7e59a6c4b05 100644
--- a/drivers/staging/iio/adc/ad7606.h
+++ b/drivers/staging/iio/adc/ad7606.h
@@ -43,14 +43,12 @@ struct ad7606_platform_data {
 /**
  * struct ad7606_chip_info - chip specific information
  * @name:		identification string for chip
- * @int_vref_mv:	the internal reference voltage
  * @channels:		channel specification
  * @num_channels:	number of channels
  */
 
 struct ad7606_chip_info {
 	const char			*name;
-	u16				int_vref_mv;
 	const struct iio_chan_spec	*channels;
 	unsigned int			num_channels;
 };
diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index 204222517a39..a1f18d412cb0 100644
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -261,19 +261,16 @@ static const struct ad7606_chip_info ad7606_chip_info_tbl[] = {
 	 */
 	[ID_AD7606_8] = {
 		.name = "ad7606",
-		.int_vref_mv = 2500,
 		.channels = ad7606_channels,
 		.num_channels = 9,
 	},
 	[ID_AD7606_6] = {
 		.name = "ad7606-6",
-		.int_vref_mv = 2500,
 		.channels = ad7606_channels,
 		.num_channels = 7,
 	},
 	[ID_AD7606_4] = {
 		.name = "ad7606-4",
-		.int_vref_mv = 2500,
 		.channels = ad7606_channels,
 		.num_channels = 5,
 	},