static int ad9467_write_raw(struct adi_axi_adc_conv *conv,
			    struct iio_chan_spec const *chan,
			    int val, int val2, long mask)
static int ad9467_write_raw(struct iio_dev *indio_dev,
			    struct iio_chan_spec const *chan,
			    int val, int val2, long mask)