staging:iio:treewide only use shared to decide on interfaces

Internally the fact that say scale is shared across channels is
actually of remarkably little interest.  Hence lets not store it.
Numerous devices have weird combinations of channels sharing
scale anyway so it is not as though this was really telling
us much. Note however that we do still use the shared sysfs
attrs thus massively reducing the number of attrs in complex
drivers.

Side effect is that certain drivers that were abusing this
(mostly my work) needed to do a few more checks on what the
channel they are being queried on actually is.

This is also helpful for in kernel interfaces where we
just want to query the scale and don't care whether it
is shared with other channels or not.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 files changed, 111 insertions, 96 deletions

diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 9416ced..4e643de 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -901,18 +901,20 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
 		}
 		return IIO_VAL_INT;
 
-	case IIO_CHAN_INFO_SCALE_SHARED:
-		mutex_lock(&indio_dev->mlock);
-		*val = st->scale_avail[AD7192_CONF_GAIN(st->conf)][0];
-		*val2 = st->scale_avail[AD7192_CONF_GAIN(st->conf)][1];
-		mutex_unlock(&indio_dev->mlock);
-
-		return IIO_VAL_INT_PLUS_NANO;
-
-	case IIO_CHAN_INFO_SCALE_SEPARATE:
-		*val =  1000;
-
-		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_VOLTAGE:
+			mutex_lock(&indio_dev->mlock);
+			*val = st->scale_avail[AD7192_CONF_GAIN(st->conf)][0];
+			*val2 = st->scale_avail[AD7192_CONF_GAIN(st->conf)][1];
+			mutex_unlock(&indio_dev->mlock);
+			return IIO_VAL_INT_PLUS_NANO;
+		case IIO_TEMP:
+			*val =  1000;
+			return IIO_VAL_INT;
+		default:
+			return -EINVAL;
+		}
 	}
 
 	return -EINVAL;
@@ -935,7 +937,7 @@ static int ad7192_write_raw(struct iio_dev *indio_dev,
 	}
 
 	switch (mask) {
-	case IIO_CHAN_INFO_SCALE_SHARED:
+	case IIO_CHAN_INFO_SCALE:
 		ret = -EINVAL;
 		for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++)
 			if (val2 == st->scale_avail[i][1]) {
@@ -992,7 +994,7 @@ static const struct iio_info ad7192_info = {
 	  .extend_name = _name,						\
 	  .channel = _chan,						\
 	  .channel2 = _chan2,						\
-	  .info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),		\
+	  .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,		\
 	  .address = _address,						\
 	  .scan_index = _si,						\
 	  .scan_type =  IIO_ST('s', 24, 32, 0)}
@@ -1001,7 +1003,7 @@ static const struct iio_info ad7192_info = {
 	{ .type = IIO_VOLTAGE,						\
 	  .indexed = 1,							\
 	  .channel = _chan,						\
-	  .info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),		\
+	  .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,		\
 	  .address = _address,						\
 	  .scan_index = _si,						\
 	  .scan_type =  IIO_ST('s', 24, 32, 0)}
@@ -1010,7 +1012,7 @@ static const struct iio_info ad7192_info = {
 	{ .type = IIO_TEMP,						\
 	  .indexed = 1,							\
 	  .channel = _chan,						\
-	  .info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),		\
+	  .info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,		\
 	  .address = _address,						\
 	  .scan_index = _si,						\
 	  .scan_type =  IIO_ST('s', 24, 32, 0)}
diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
index 7fb60c5..cd3397f 100644
--- a/drivers/staging/iio/adc/ad7280a.c
+++ b/drivers/staging/iio/adc/ad7280a.c
@@ -508,7 +508,7 @@ static int ad7280_channel_init(struct ad7280_state *st)
 			}
 			st->channels[cnt].indexed = 1;
 			st->channels[cnt].info_mask =
-				(1 << IIO_CHAN_INFO_SCALE_SHARED);
+				IIO_CHAN_INFO_SCALE_SHARED_BIT;
 			st->channels[cnt].address =
 				AD7280A_DEVADDR(dev) << 8 | ch;
 			st->channels[cnt].scan_index = cnt;
@@ -524,7 +524,7 @@ static int ad7280_channel_init(struct ad7280_state *st)
 	st->channels[cnt].channel2 = dev * 6;
 	st->channels[cnt].address = AD7280A_ALL_CELLS;
 	st->channels[cnt].indexed = 1;
-	st->channels[cnt].info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED);
+	st->channels[cnt].info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT;
 	st->channels[cnt].scan_index = cnt;
 	st->channels[cnt].scan_type.sign = 'u';
 	st->channels[cnt].scan_type.realbits = 32;
@@ -803,7 +803,7 @@ static int ad7280_read_raw(struct iio_dev *indio_dev,
 		*val = ret;
 
 		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE_SHARED:
+	case IIO_CHAN_INFO_SCALE:
 		if ((chan->address & 0xFF) <= AD7280A_CELL_VOLTAGE_6)
 			scale_uv = (4000 * 1000) >> AD7280A_BITS;
 		else
diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c
index bedd91a..c4977a7 100644
--- a/drivers/staging/iio/adc/ad7291.c
+++ b/drivers/staging/iio/adc/ad7291.c
@@ -501,7 +501,7 @@ static int ad7291_read_raw(struct iio_dev *indio_dev,
 		default:
 			return -EINVAL;
 		}
-	case IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE:
+	case IIO_CHAN_INFO_AVERAGE_RAW:
 		ret = i2c_smbus_read_word_data(chip->client,
 					       AD7291_T_AVERAGE);
 			if (ret < 0)
@@ -510,18 +510,24 @@ static int ad7291_read_raw(struct iio_dev *indio_dev,
 				AD7291_VALUE_MASK) << 4) >> 4;
 			*val = signval;
 			return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE_SHARED:
-		scale_uv = (chip->int_vref_mv * 1000) >> AD7291_BITS;
-		*val =  scale_uv / 1000;
-		*val2 = (scale_uv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
-	case IIO_CHAN_INFO_SCALE_SEPARATE:
-		/*
-		* One LSB of the ADC corresponds to 0.25 deg C.
-		* The temperature reading is in 12-bit twos complement format
-		*/
-		*val = 250;
-		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_VOLTAGE:
+			scale_uv = (chip->int_vref_mv * 1000) >> AD7291_BITS;
+			*val =  scale_uv / 1000;
+			*val2 = (scale_uv % 1000) * 1000;
+			return IIO_VAL_INT_PLUS_MICRO;
+		case IIO_TEMP:
+			/*
+			 * One LSB of the ADC corresponds to 0.25 deg C.
+			 * The temperature reading is in 12-bit twos
+			 * complement format
+			 */
+			*val = 250;
+			return IIO_VAL_INT;
+		default:
+			return -EINVAL;
+		}
 	default:
 		return -EINVAL;
 	}
@@ -530,7 +536,7 @@ static int ad7291_read_raw(struct iio_dev *indio_dev,
 #define AD7291_VOLTAGE_CHAN(_chan)					\
 {									\
 	.type = IIO_VOLTAGE,						\
-	.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),			\
+	.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,			\
 	.indexed = 1,							\
 	.channel = _chan,						\
 	.event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING)|\
@@ -548,8 +554,8 @@ static const struct iio_chan_spec ad7291_channels[] = {
 	AD7291_VOLTAGE_CHAN(7),
 	{
 		.type = IIO_TEMP,
-		.info_mask = (1 << IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE) |
-				(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE_BIT |
+				IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.indexed = 1,
 		.channel = 0,
 		.event_mask =
diff --git a/drivers/staging/iio/adc/ad7298_core.c b/drivers/staging/iio/adc/ad7298_core.c
index 2e3b0d9..0be71df 100644
--- a/drivers/staging/iio/adc/ad7298_core.c
+++ b/drivers/staging/iio/adc/ad7298_core.c
@@ -24,31 +24,31 @@
 
 static struct iio_chan_spec ad7298_channels[] = {
 	IIO_CHAN(IIO_TEMP, 0, 1, 0, NULL, 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 9, AD7298_CH_TEMP, IIO_ST('s', 32, 32, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 0, 0, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 1, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 1, 1, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 2, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 2, 2, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 3, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 3, 3, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 4, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 4, 4, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 5, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 5, 5, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 6, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 6, 6, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 7, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 7, 7, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN_SOFT_TIMESTAMP(8),
 };
@@ -143,15 +143,20 @@ static int ad7298_read_raw(struct iio_dev *indio_dev,
 			*val = ret & RES_MASK(AD7298_BITS);
 
 		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE_SHARED:
-		scale_uv = (st->int_vref_mv * 1000) >> AD7298_BITS;
-		*val =  scale_uv / 1000;
-		*val2 = (scale_uv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
-	case IIO_CHAN_INFO_SCALE_SEPARATE:
-		*val =  1;
-		*val2 = 0;
-		return IIO_VAL_INT_PLUS_MICRO;
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_VOLTAGE:
+			scale_uv = (st->int_vref_mv * 1000) >> AD7298_BITS;
+			*val =  scale_uv / 1000;
+			*val2 = (scale_uv % 1000) * 1000;
+			return IIO_VAL_INT_PLUS_MICRO;
+		case IIO_TEMP:
+			*val =  1;
+			*val2 = 0;
+			return IIO_VAL_INT_PLUS_MICRO;
+		default:
+			return -EINVAL;
+		}
 	}
 	return -EINVAL;
 }
diff --git a/drivers/staging/iio/adc/ad7476_core.c b/drivers/staging/iio/adc/ad7476_core.c
index 163a254..a06ae9e 100644
--- a/drivers/staging/iio/adc/ad7476_core.c
+++ b/drivers/staging/iio/adc/ad7476_core.c
@@ -56,7 +56,7 @@ static int ad7476_read_raw(struct iio_dev *indio_dev,
 		*val = (ret >> st->chip_info->channel[0].scan_type.shift) &
 			RES_MASK(st->chip_info->channel[0].scan_type.realbits);
 		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE_SHARED:
+	case IIO_CHAN_INFO_SCALE:
 		scale_uv = (st->int_vref_mv * 1000)
 			>> st->chip_info->channel[0].scan_type.realbits;
 		*val =  scale_uv/1000;
@@ -69,49 +69,49 @@ static int ad7476_read_raw(struct iio_dev *indio_dev,
 static const struct ad7476_chip_info ad7476_chip_info_tbl[] = {
 	[ID_AD7466] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 12, 16, 0), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7467] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 10, 16, 2), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7468] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1 , 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 8, 16, 4), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7475] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 12, 16, 0), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7476] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 12, 16, 0), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7477] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 10, 16, 2), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7478] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 8, 16, 4), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7495] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 12, 16, 0), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 		.int_vref_mv = 2500,
diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index d58a0e3..a8596b8 100644
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -100,7 +100,7 @@ static int ad7606_read_raw(struct iio_dev *indio_dev,
 			return ret;
 		*val = (short) ret;
 		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE_SHARED:
+	case IIO_CHAN_INFO_SCALE:
 		scale_uv = (st->range * 1000 * 2)
 			>> st->chip_info->channels[0].scan_type.realbits;
 		*val =  scale_uv / 1000;
diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index b06f9ad..f5f7e76 100644
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -114,7 +114,7 @@ static int ad7780_read_raw(struct iio_dev *indio_dev,
 			*val *= 128;
 
 		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE_SHARED:
+	case IIO_CHAN_INFO_SCALE:
 		scale_uv = (st->int_vref_mv * 100000)
 			>> (channel.scan_type.realbits - 1);
 		*val =  scale_uv / 100000;
@@ -127,12 +127,12 @@ static int ad7780_read_raw(struct iio_dev *indio_dev,
 static const struct ad7780_chip_info ad7780_chip_info_tbl[] = {
 	[ID_AD7780] = {
 		.channel = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				    (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				    IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				    0, 0, IIO_ST('s', 24, 32, 8), 0),
 	},
 	[ID_AD7781] = {
 		.channel = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				    (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				    IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				    0, 0, IIO_ST('s', 20, 32, 12), 0),
 	},
 };
diff --git a/drivers/staging/iio/adc/ad7793.c b/drivers/staging/iio/adc/ad7793.c
index c3fdfed..803c45f 100644
--- a/drivers/staging/iio/adc/ad7793.c
+++ b/drivers/staging/iio/adc/ad7793.c
@@ -667,19 +667,21 @@ static int ad7793_read_raw(struct iio_dev *indio_dev,
 
 		return IIO_VAL_INT;
 
-	case IIO_CHAN_INFO_SCALE_SHARED:
-		*val = st->scale_avail[(st->conf >> 8) & 0x7][0];
-		*val2 = st->scale_avail[(st->conf >> 8) & 0x7][1];
-
-		return IIO_VAL_INT_PLUS_NANO;
-
-	case IIO_CHAN_INFO_SCALE_SEPARATE:
+	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_VOLTAGE:
-			/* 1170mV / 2^23 * 6 */
-			scale_uv = (1170ULL * 100000000ULL * 6ULL)
-				>> (chan->scan_type.realbits -
-				(unipolar ? 0 : 1));
+			if (chan->differential) {
+				*val = st->
+					scale_avail[(st->conf >> 8) & 0x7][0];
+				*val2 = st->
+					scale_avail[(st->conf >> 8) & 0x7][1];
+				return IIO_VAL_INT_PLUS_NANO;
+			} else {
+				/* 1170mV / 2^23 * 6 */
+				scale_uv = (1170ULL * 100000000ULL * 6ULL)
+					>> (chan->scan_type.realbits -
+					    (unipolar ? 0 : 1));
+			}
 			break;
 		case IIO_TEMP:
 			/* Always uses unity gain and internal ref */
@@ -716,7 +718,7 @@ static int ad7793_write_raw(struct iio_dev *indio_dev,
 	}
 
 	switch (mask) {
-	case IIO_CHAN_INFO_SCALE_SHARED:
+	case IIO_CHAN_INFO_SCALE:
 		ret = -EINVAL;
 		for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++)
 			if (val2 == st->scale_avail[i][1]) {
@@ -775,7 +777,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 0,
 			.channel2 = 0,
 			.address = AD7793_CH_AIN1P_AIN1M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 0,
 			.scan_type = IIO_ST('s', 24, 32, 0)
 		},
@@ -786,7 +788,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 1,
 			.channel2 = 1,
 			.address = AD7793_CH_AIN2P_AIN2M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 1,
 			.scan_type = IIO_ST('s', 24, 32, 0)
 		},
@@ -797,7 +799,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 2,
 			.channel2 = 2,
 			.address = AD7793_CH_AIN3P_AIN3M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 2,
 			.scan_type = IIO_ST('s', 24, 32, 0)
 		},
@@ -809,7 +811,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 2,
 			.channel2 = 2,
 			.address = AD7793_CH_AIN1M_AIN1M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 2,
 			.scan_type = IIO_ST('s', 24, 32, 0)
 		},
@@ -818,7 +820,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.indexed = 1,
 			.channel = 0,
 			.address = AD7793_CH_TEMP,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+			.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 			.scan_index = 4,
 			.scan_type = IIO_ST('s', 24, 32, 0),
 		},
@@ -828,7 +830,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.indexed = 1,
 			.channel = 4,
 			.address = AD7793_CH_AVDD_MONITOR,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+			.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 			.scan_index = 5,
 			.scan_type = IIO_ST('s', 24, 32, 0),
 		},
@@ -842,7 +844,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 0,
 			.channel2 = 0,
 			.address = AD7793_CH_AIN1P_AIN1M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 0,
 			.scan_type = IIO_ST('s', 16, 32, 0)
 		},
@@ -853,7 +855,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 1,
 			.channel2 = 1,
 			.address = AD7793_CH_AIN2P_AIN2M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 1,
 			.scan_type = IIO_ST('s', 16, 32, 0)
 		},
@@ -864,7 +866,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 2,
 			.channel2 = 2,
 			.address = AD7793_CH_AIN3P_AIN3M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 2,
 			.scan_type = IIO_ST('s', 16, 32, 0)
 		},
@@ -876,7 +878,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 2,
 			.channel2 = 2,
 			.address = AD7793_CH_AIN1M_AIN1M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 2,
 			.scan_type = IIO_ST('s', 16, 32, 0)
 		},
@@ -885,7 +887,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.indexed = 1,
 			.channel = 0,
 			.address = AD7793_CH_TEMP,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+			.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 			.scan_index = 4,
 			.scan_type = IIO_ST('s', 16, 32, 0),
 		},
@@ -895,7 +897,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.indexed = 1,
 			.channel = 4,
 			.address = AD7793_CH_AVDD_MONITOR,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+			.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 			.scan_index = 5,
 			.scan_type = IIO_ST('s', 16, 32, 0),
 		},
diff --git a/drivers/staging/iio/adc/ad7887_core.c b/drivers/staging/iio/adc/ad7887_core.c
index 245c943..baa6e6a 100644
--- a/drivers/staging/iio/adc/ad7887_core.c
+++ b/drivers/staging/iio/adc/ad7887_core.c
@@ -55,7 +55,7 @@ static int ad7887_read_raw(struct iio_dev *indio_dev,
 		*val = (ret >> st->chip_info->channel[0].scan_type.shift) &
 			RES_MASK(st->chip_info->channel[0].scan_type.realbits);
 		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE_SHARED:
+	case IIO_CHAN_INFO_SCALE:
 		scale_uv = (st->int_vref_mv * 1000)
 			>> st->chip_info->channel[0].scan_type.realbits;
 		*val =  scale_uv/1000;
@@ -75,7 +75,7 @@ static const struct ad7887_chip_info ad7887_chip_info_tbl[] = {
 			.type = IIO_VOLTAGE,
 			.indexed = 1,
 			.channel = 1,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.address = 1,
 			.scan_index = 1,
 			.scan_type = IIO_ST('u', 12, 16, 0),
@@ -84,7 +84,7 @@ static const struct ad7887_chip_info ad7887_chip_info_tbl[] = {
 			.type = IIO_VOLTAGE,
 			.indexed = 1,
 			.channel = 0,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.address = 0,
 			.scan_index = 0,
 			.scan_type = IIO_ST('u', 12, 16, 0),
diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index 60a48a2..cdee9b9 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -162,7 +162,7 @@ static int ad799x_read_raw(struct iio_dev *indio_dev,
 		*val = (ret >> chan->scan_type.shift) &
 			RES_MASK(chan->scan_type.realbits);
 		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE_SHARED:
+	case IIO_CHAN_INFO_SCALE:
 		scale_uv = (st->int_vref_mv * 1000) >> chan->scan_type.realbits;
 		*val =  scale_uv / 1000;
 		*val2 = (scale_uv % 1000) * 1000;
diff --git a/drivers/staging/iio/adc/max1363_core.c b/drivers/staging/iio/adc/max1363_core.c
index 6b05e57..c3e28e1 100644
--- a/drivers/staging/iio/adc/max1363_core.c
+++ b/drivers/staging/iio/adc/max1363_core.c
@@ -261,7 +261,7 @@ static int max1363_read_raw(struct iio_dev *indio_dev,
 		if (ret < 0)
 			return ret;
 		return IIO_VAL_INT;
-	case IIO_CHAN_INFO_SCALE_SHARED:
+	case IIO_CHAN_INFO_SCALE:
 		if ((1 << (st->chip_info->bits + 1)) >
 		    st->chip_info->int_vref_mv) {
 			*val = 0;
@@ -289,7 +289,7 @@ static const enum max1363_modes max1363_mode_list[] = {
 #define MAX1363_EV_M						\
 	(IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING)	\
 	 | IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING))
-#define MAX1363_INFO_MASK (1 << IIO_CHAN_INFO_SCALE_SHARED)
+#define MAX1363_INFO_MASK IIO_CHAN_INFO_SCALE_SHARED_BIT
 #define MAX1363_CHAN_U(num, addr, si, bits, evmask)			\
 	{								\
 		.type = IIO_VOLTAGE,					\