staging:iio:adc:ad799x trivial: use the convenient chan struct.

This is much cleaner than bouncing through the various structures
to get to the same thing.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index 975a3f7..8a7dce0 100644 (file)
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -158,12 +158,11 @@ static int ad799x_read_raw(struct iio_dev *dev_info,
 
                if (ret < 0)
                        return ret;
-               *val = (ret >> st->chip_info->channel[0].scan_type.shift) &
-                       RES_MASK(st->chip_info->channel[0].scan_type.realbits);
+               *val = (ret >> chan->scan_type.shift) &
+                       RES_MASK(chan->scan_type.realbits);
                return IIO_VAL_INT;
        case (1 << IIO_CHAN_INFO_SCALE_SHARED):
-               scale_uv = (st->int_vref_mv * 1000)
-                       >> st->chip_info->channel[0].scan_type.realbits;
+               scale_uv = (st->int_vref_mv * 1000) >> chan->scan_type.realbits;
                *val =  scale_uv / 1000;
                *val2 = (scale_uv % 1000) * 1000;
                return IIO_VAL_INT_PLUS_MICRO;