staging:iio:ad7291 fix coding style

Fix indention and comment style.
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/staging/iio/adc/ad7291.c

@@ -31,7 +31,6 @@
  * is in the read mask.
  *
  * The noise-delayed bit as per datasheet suggestion is always enabled.
- *
  */
 
 /*
@@ -163,7 +162,8 @@ static irqreturn_t ad7291_event_handler(int irq, void *private)
 }
 
 static unsigned int ad7291_threshold_reg(const struct iio_chan_spec *chan,
-	enum iio_event_direction dir, enum iio_event_info info)
+					 enum iio_event_direction dir,
+					 enum iio_event_info info)
 {
 	unsigned int offset;
 
@@ -180,14 +180,14 @@ static unsigned int ad7291_threshold_reg(const struct iio_chan_spec *chan,
 
 	switch (info) {
 	case IIO_EV_INFO_VALUE:
-			if (dir == IIO_EV_DIR_FALLING)
-					return AD7291_DATA_HIGH(offset);
-			else
-					return AD7291_DATA_LOW(offset);
+		if (dir == IIO_EV_DIR_FALLING)
+			return AD7291_DATA_HIGH(offset);
+		else
+			return AD7291_DATA_LOW(offset);
 	case IIO_EV_INFO_HYSTERESIS:
-			return AD7291_HYST(offset);
+		return AD7291_HYST(offset);
 	default:
-			break;
+		break;
 	}
 	return 0;
 }
@@ -204,7 +204,7 @@ static int ad7291_read_event_value(struct iio_dev *indio_dev,
 	u16 uval;
 
 	ret = ad7291_i2c_read(chip, ad7291_threshold_reg(chan, dir, info),
-		&uval);
+			      &uval);
 	if (ret < 0)
 		return ret;
 
@@ -235,7 +235,7 @@ static int ad7291_write_event_value(struct iio_dev *indio_dev,
 	}
 
 	return ad7291_i2c_write(chip, ad7291_threshold_reg(chan, dir, info),
-		val);
+				val);
 }
 
 static int ad7291_read_event_config(struct iio_dev *indio_dev,
@@ -244,8 +244,10 @@ static int ad7291_read_event_config(struct iio_dev *indio_dev,
 				    enum iio_event_direction dir)
 {
 	struct ad7291_chip_info *chip = iio_priv(indio_dev);
-	/* To be enabled the channel must simply be on. If any are enabled
-	   we are in continuous sampling mode */
+	/*
+	 * To be enabled the channel must simply be on. If any are enabled
+	 * we are in continuous sampling mode
+	 */
 
 	switch (chan->type) {
 	case IIO_VOLTAGE:
@@ -342,7 +344,7 @@ static int ad7291_read_raw(struct iio_dev *indio_dev,
 			}
 			/* Read voltage */
 			ret = i2c_smbus_read_word_swapped(chip->client,
-						       AD7291_VOLTAGE);
+							  AD7291_VOLTAGE);
 			if (ret < 0) {
 				mutex_unlock(&chip->state_lock);
 				return ret;
@@ -353,7 +355,7 @@ static int ad7291_read_raw(struct iio_dev *indio_dev,
 		case IIO_TEMP:
 			/* Assumes tsense bit of command register always set */
 			ret = i2c_smbus_read_word_swapped(chip->client,
-						       AD7291_T_SENSE);
+							  AD7291_T_SENSE);
 			if (ret < 0)
 				return ret;
 			*val = sign_extend32(ret, 11);
@@ -363,7 +365,7 @@ static int ad7291_read_raw(struct iio_dev *indio_dev,
 		}
 	case IIO_CHAN_INFO_AVERAGE_RAW:
 		ret = i2c_smbus_read_word_swapped(chip->client,
-					       AD7291_T_AVERAGE);
+						  AD7291_T_AVERAGE);
 			if (ret < 0)
 				return ret;
 			*val = sign_extend32(ret, 11);
@@ -458,7 +460,7 @@ static const struct iio_info ad7291_info = {
 };
 
 static int ad7291_probe(struct i2c_client *client,
-		const struct i2c_device_id *id)
+			const struct i2c_device_id *id)
 {
 	struct ad7291_platform_data *pdata = client->dev.platform_data;
 	struct ad7291_chip_info *chip;