staging: iio: ad5933: change attributes to match ABI

Change device attributes' names to match ABI documentation. Names were
chosen such that they tend to be similar to existing ABI so it should
be easier to standardize them when necessary.
Signed-off-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/staging/iio/impedance-analyzer/ad5933.c

@@ -315,12 +315,12 @@ static ssize_t ad5933_store_frequency(struct device *dev,
 	return ret ? ret : len;
 }
 
-static IIO_DEVICE_ATTR(out_voltage0_freq_start, 0644,
+static IIO_DEVICE_ATTR(out_altvoltage0_frequency_start, 0644,
 			ad5933_show_frequency,
 			ad5933_store_frequency,
 			AD5933_REG_FREQ_START);
 
-static IIO_DEVICE_ATTR(out_voltage0_freq_increment, 0644,
+static IIO_DEVICE_ATTR(out_altvoltage0_frequency_increment, 0644,
 			ad5933_show_frequency,
 			ad5933_store_frequency,
 			AD5933_REG_FREQ_INC);
@@ -443,12 +443,12 @@ static ssize_t ad5933_store(struct device *dev,
 	return ret ? ret : len;
 }
 
-static IIO_DEVICE_ATTR(out_voltage0_scale, 0644,
+static IIO_DEVICE_ATTR(out_altvoltage0_raw, 0644,
 			ad5933_show,
 			ad5933_store,
 			AD5933_OUT_RANGE);
 
-static IIO_DEVICE_ATTR(out_voltage0_scale_available, 0444,
+static IIO_DEVICE_ATTR(out_altvoltage0_scale_available, 0444,
 			ad5933_show,
 			NULL,
 			AD5933_OUT_RANGE_AVAIL);
@@ -463,12 +463,12 @@ static IIO_DEVICE_ATTR(in_voltage0_scale_available, 0444,
 			NULL,
 			AD5933_IN_PGA_GAIN_AVAIL);
 
-static IIO_DEVICE_ATTR(out_voltage0_freq_points, 0644,
+static IIO_DEVICE_ATTR(out_altvoltage0_frequency_points, 0644,
 			ad5933_show,
 			ad5933_store,
 			AD5933_FREQ_POINTS);
 
-static IIO_DEVICE_ATTR(out_voltage0_settling_cycles, 0644,
+static IIO_DEVICE_ATTR(out_altvoltage0_settling_cycles, 0644,
 			ad5933_show,
 			ad5933_store,
 			AD5933_OUT_SETTLING_CYCLES);
@@ -480,12 +480,12 @@ static IIO_DEVICE_ATTR(out_voltage0_settling_cycles, 0644,
  * don't create dedicated sysfs channel attributes for out0 and in0.
  */
 static struct attribute *ad5933_attributes[] = {
-	&iio_dev_attr_out_voltage0_scale.dev_attr.attr,
-	&iio_dev_attr_out_voltage0_scale_available.dev_attr.attr,
-	&iio_dev_attr_out_voltage0_freq_start.dev_attr.attr,
-	&iio_dev_attr_out_voltage0_freq_increment.dev_attr.attr,
-	&iio_dev_attr_out_voltage0_freq_points.dev_attr.attr,
-	&iio_dev_attr_out_voltage0_settling_cycles.dev_attr.attr,
+	&iio_dev_attr_out_altvoltage0_raw.dev_attr.attr,
+	&iio_dev_attr_out_altvoltage0_scale_available.dev_attr.attr,
+	&iio_dev_attr_out_altvoltage0_frequency_start.dev_attr.attr,
+	&iio_dev_attr_out_altvoltage0_frequency_increment.dev_attr.attr,
+	&iio_dev_attr_out_altvoltage0_frequency_points.dev_attr.attr,
+	&iio_dev_attr_out_altvoltage0_settling_cycles.dev_attr.attr,
 	&iio_dev_attr_in_voltage0_scale.dev_attr.attr,
 	&iio_dev_attr_in_voltage0_scale_available.dev_attr.attr,
 	NULL