diff --git a/drivers/staging/iio/adc/ad7606.h b/drivers/staging/iio/adc/ad7606.h
index 0d1bb261c793..35018c3f518e 100644
--- a/drivers/staging/iio/adc/ad7606.h
+++ b/drivers/staging/iio/adc/ad7606.h
@@ -50,8 +50,6 @@ struct ad7606_platform_data {
 
 struct ad7606_chip_info {
 	const char			*name;
-	u8				bits;
-	char				sign;
 	u16				int_vref_mv;
 	struct iio_chan_spec		*channels;
 	unsigned			num_channels;