iio: light: tsl2772: fix ALS calibscale readback

The read_raw() implementation uses IIO_LIGHT to distinguish between the
ambient light and proximity channels when handling
IIO_CHAN_INFO_CALIBSCALE.

However, the ALS channel is registered as IIO_INTENSITY, while
write_raw() correctly writes to IIO_INTENSITY. As a result, reading
in_intensity0_calibscale incorrectly returns the proximity gain instead
of the ALS gain.

This causes the following user-visible behavior:
- Writing in_intensity0_calibscale appears to have no effect because the
  readback reports the proximity gain.
- Writing in_proximity0_calibscale causes both in_proximity0_calibscale
  and in_intensity0_calibscale to report the same value.

Fix this by checking for IIO_INTENSITY in read_raw(), matching the
channel definition and the existing write_raw() implementation.

Fixes: 3c97c08b5735 ("staging: iio: add TAOS tsl2x7x driver")
Signed-off-by: Yuanshen Cao <alex.caoys@gmail.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>

0 files changed, 0 insertions, 0 deletions