ad5686_pd_field_set
ad5686_pd_field_set(chan, &st->pwr_down_mask, AD5686_PD_MSK_PWR_DOWN);
ad5686_pd_field_set(chan, &st->pwr_down_mask, AD5686_PD_MSK_PWR_UP);
ad5686_pd_field_set(&st->chip_info->channels[i],
ad5686_pd_field_set(&st->chip_info->channels[i],
ad5686_pd_field_set(chan, &st->pwr_down_mode, mode + 1);