iio: pressure: fix spelling mistakes in comments

Fix several spelling mistakes in comments.

- opertion -> operations
- transfered -> transferred
- usng -> using
- externaly -> externally

Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/pressure/bmp280-spi.c

@@ -47,7 +47,7 @@ static int bmp380_regmap_spi_read(void *context, const void *reg,
 		return -EINVAL;
 
 	/*
-	 * According to the BMP3xx datasheets, for a basic SPI read opertion,
+	 * According to the BMP3xx datasheets, for a basic SPI read operation,
 	 * the first byte needs to be dropped and the rest are the requested
 	 * data.
 	 */

drivers/iio/pressure/hsc030pa.c

@@ -273,7 +273,7 @@ static const struct hsc_range_config hsc_range_config[HSC_VARIANTS_MAX] = {
  * @data: structure containing instantiated sensor data
  * Return: true only if both status bits are zero
  *
- * the two MSB from the first transfered byte contain a status code
+ * The two MSB from the first transferred byte contain a status code
  *   00 - normal operation, valid data
  *   01 - device in factory programming mode
  *   10 - stale data

drivers/iio/pressure/rohm-bm1390.c

@@ -440,7 +440,7 @@ static int bm1390_fifo_flush(struct iio_dev *idev, unsigned int samples)
 	 * the timestamps. If we are ran from IRQ, then the
 	 * IRQF_ONESHOT has us covered - but if we are ran by the
 	 * user-space read we need to disable the IRQ to be on a safe
-	 * side. We do this usng synchronous disable so that if the
+	 * side. We do this using synchronous disable so that if the
 	 * IRQ thread is being ran on other CPU we wait for it to be
 	 * finished.
 	 */

drivers/iio/pressure/zpa2326.c

@@ -840,7 +840,7 @@ static irqreturn_t zpa2326_handle_threaded_irq(int irq, void *data)
 
 complete:
 	/*
-	 * Wake up direct or externaly triggered buffer mode waiters: see
+	 * Wake up direct or externally triggered buffer mode waiters: see
 	 * zpa2326_sample_oneshot() and zpa2326_trigger_handler().
 	 */
 	complete(&priv->data_ready);