iio: bu27034: Fix integration time

The bu27034 uses micro seconds for integration time configuration. This
is incorrect as the ABI mandates use of seconds.

Change BU27034 driver to use seconds for integration time.

Fixes: e52afbd ("iio: light: ROHM BU27034 Ambient Light Sensor")
Signed-off-by: Matti Vaittinen <[email protected]>
Link: https://lore.kernel.org/r/a05647669af22ba919c7c87dccb43975e3235a87.1681722914.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <[email protected]>

Author: M-Vaittinen

drivers/iio/light/rohm-bu27034.c

@@ -1167,11 +1167,12 @@ static int bu27034_read_raw(struct iio_dev *idev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_INT_TIME:
-		*val = bu27034_get_int_time(data);
-		if (*val < 0)
-			return *val;
+		*val = 0;
+		*val2 = bu27034_get_int_time(data);
+		if (*val2 < 0)
+			return *val2;
 
-		return IIO_VAL_INT;
+		return IIO_VAL_INT_PLUS_MICRO;
 
 	case IIO_CHAN_INFO_SCALE:
 		return bu27034_get_scale(data, chan->channel, val, val2);
@@ -1229,7 +1230,10 @@ static int bu27034_write_raw(struct iio_dev *idev,
 		ret = bu27034_set_scale(data, chan->channel, val, val2);
 		break;
 	case IIO_CHAN_INFO_INT_TIME:
-		ret = bu27034_try_set_int_time(data, val);
+		if (!val)
+			ret = bu27034_try_set_int_time(data, val2);
+		else
+			ret = -EINVAL;
 		break;
 	default:
 		ret = -EINVAL;