diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index b6662dbfbd9b..58f70aa6ca16 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -506,16 +506,16 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 	[ad7995] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
 				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
-				       0, 0, IIO_ST('u', 10, 16, 0), 0),
+				       0, 0, IIO_ST('u', 10, 16, 2), 0),
 		.channel[1] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 1, 0,
 				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
-				       1, 1, IIO_ST('u', 10, 16, 0), 0),
+				       1, 1, IIO_ST('u', 10, 16, 2), 0),
 		.channel[2] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 2, 0,
 				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
-				       2, 2, IIO_ST('u', 10, 16, 0), 0),
+				       2, 2, IIO_ST('u', 10, 16, 2), 0),
 		.channel[3] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 3, 0,
 				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
-				       3, 3, IIO_ST('u', 10, 16, 0), 0),
+				       3, 3, IIO_ST('u', 10, 16, 2), 0),
 		.channel[4] = IIO_CHAN_SOFT_TIMESTAMP(4),
 		.num_channels = 5,
 		.int_vref_mv = 1024,
@@ -524,16 +524,16 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 	[ad7999] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
 				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
-				       0, 0, IIO_ST('u', 10, 16, 0), 0),
+				       0, 0, IIO_ST('u', 8, 16, 4), 0),
 		.channel[1] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 1, 0,
 				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
-				       1, 1, IIO_ST('u', 10, 16, 0), 0),
+				       1, 1, IIO_ST('u', 8, 16, 4), 0),
 		.channel[2] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 2, 0,
 				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
-				       2, 2, IIO_ST('u', 10, 16, 0), 0),
+				       2, 2, IIO_ST('u', 8, 16, 4), 0),
 		.channel[3] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 3, 0,
 				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
-				       3, 3, IIO_ST('u', 10, 16, 0), 0),
+				       3, 3, IIO_ST('u', 8, 16, 4), 0),
 		.channel[4] = IIO_CHAN_SOFT_TIMESTAMP(4),
 		.num_channels = 5,
 		.int_vref_mv = 1024,
@@ -555,16 +555,16 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 	[ad7993] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
 				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
-				       0, 0, IIO_ST('u', 10, 16, 0), 0),
+				       0, 0, IIO_ST('u', 10, 16, 2), 0),
 		.channel[1] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 1, 0,
 				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
-				       1, 1, IIO_ST('u', 10, 16, 0), 0),
+				       1, 1, IIO_ST('u', 10, 16, 2), 0),
 		.channel[2] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 2, 0,
 				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
-				       2, 2, IIO_ST('u', 10, 16, 0), 0),
+				       2, 2, IIO_ST('u', 10, 16, 2), 0),
 		.channel[3] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 3, 0,
 				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
-				       3, 3, IIO_ST('u', 10, 16, 0), 0),
+				       3, 3, IIO_ST('u', 10, 16, 2), 0),
 		.channel[4] = IIO_CHAN_SOFT_TIMESTAMP(4),
 		.num_channels = 5,
 		.int_vref_mv = 1024,
@@ -593,28 +593,28 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 	[ad7997] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
 					  (1 << IIO_CHAN_INFO_SCALE_SHARED),
-					  0, 0, IIO_ST('u', 10, 16, 0), 0),
+					  0, 0, IIO_ST('u', 10, 16, 2), 0),
 		.channel[1] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 1, 0,
 					  (1 << IIO_CHAN_INFO_SCALE_SHARED),
-					  1, 1, IIO_ST('u', 10, 16, 0), 0),
+					  1, 1, IIO_ST('u', 10, 16, 2), 0),
 		.channel[2] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 2, 0,
 					  (1 << IIO_CHAN_INFO_SCALE_SHARED),
-					  2, 2, IIO_ST('u', 10, 16, 0), 0),
+					  2, 2, IIO_ST('u', 10, 16, 2), 0),
 		.channel[3] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 3, 0,
 					  (1 << IIO_CHAN_INFO_SCALE_SHARED),
-					  3, 3, IIO_ST('u', 10, 16, 0), 0),
+					  3, 3, IIO_ST('u', 10, 16, 2), 0),
 		.channel[4] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 4, 0,
 					  (1 << IIO_CHAN_INFO_SCALE_SHARED),
-					  4, 4, IIO_ST('u', 10, 16, 0), 0),
+					  4, 4, IIO_ST('u', 10, 16, 2), 0),
 		.channel[5] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 5, 0,
 					  (1 << IIO_CHAN_INFO_SCALE_SHARED),
-					  5, 5, IIO_ST('u', 10, 16, 0), 0),
+					  5, 5, IIO_ST('u', 10, 16, 2), 0),
 		.channel[6] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 6, 0,
 					  (1 << IIO_CHAN_INFO_SCALE_SHARED),
-					  6, 6, IIO_ST('u', 10, 16, 0), 0),
+					  6, 6, IIO_ST('u', 10, 16, 2), 0),
 		.channel[7] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 7, 0,
 					  (1 << IIO_CHAN_INFO_SCALE_SHARED),
-					  7, 7, IIO_ST('u', 10, 16, 0), 0),
+					  7, 7, IIO_ST('u', 10, 16, 2), 0),
 		.channel[8] = IIO_CHAN_SOFT_TIMESTAMP(8),
 		.num_channels = 9,
 		.int_vref_mv = 1024,