171 	struct ad7791_state *st = ad_sigma_delta_to_ad7791(sd);  in ad7791_set_mode()  local
186 	st->mode &= ~AD7791_MODE_SEL_MASK;  in ad7791_set_mode()
187 	st->mode |= AD7791_MODE_SEL(mode);  in ad7791_set_mode()
189 	return ad_sd_write_reg(sd, AD7791_REG_MODE, sizeof(st->mode), st->mode);  in ad7791_set_mode()
203 	struct ad7791_state *st = iio_priv(indio_dev);  in ad7791_read_raw()  local
204 	bool unipolar = !!(st->mode & AD7791_MODE_UNIPOLAR);  in ad7791_read_raw()
230 			voltage_uv = regulator_get_voltage(st->reg);  in ad7791_read_raw()
262 	struct ad7791_state *st = iio_priv(indio_dev);  in ad7791_read_frequency()  local
263 	unsigned int rate = st->filter & AD7791_FILTER_RATE_MASK;  in ad7791_read_frequency()
272 	struct ad7791_state *st = iio_priv(indio_dev);  in ad7791_write_frequency()  local
288 			st->filter &= ~AD7791_FILTER_RATE_MASK;  in ad7791_write_frequency()
289 			st->filter |= i;  in ad7791_write_frequency()
290 			ad_sd_write_reg(&st->sd, AD7791_REG_FILTER,  in ad7791_write_frequency()
291 					 sizeof(st->filter), st->filter);  in ad7791_write_frequency()
330 static int ad7791_setup(struct ad7791_state *st,  in ad7791_setup()  argument
334 	st->mode = AD7791_MODE_BUFFER;  in ad7791_setup()
335 	st->filter = AD7791_FILTER_RATE_16_6;  in ad7791_setup()
340 	if ((st->info->flags & AD7791_FLAG_HAS_BUFFER) && !pdata->buffered)  in ad7791_setup()
341 		st->mode &= ~AD7791_MODE_BUFFER;  in ad7791_setup()
343 	if ((st->info->flags & AD7791_FLAG_HAS_BURNOUT) &&  in ad7791_setup()
345 		st->mode |= AD7791_MODE_BURNOUT;  in ad7791_setup()
347 	if ((st->info->flags & AD7791_FLAG_HAS_UNIPOLAR) && pdata->unipolar)  in ad7791_setup()
348 		st->mode |= AD7791_MODE_UNIPOLAR;  in ad7791_setup()
350 	return ad_sd_write_reg(&st->sd, AD7791_REG_MODE, sizeof(st->mode),  in ad7791_setup()
351 		st->mode);  in ad7791_setup()
358 	struct ad7791_state *st;  in ad7791_probe()  local
366 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));  in ad7791_probe()
370 	st = iio_priv(indio_dev);  in ad7791_probe()
372 	st->reg = devm_regulator_get(&spi->dev, "refin");  in ad7791_probe()
373 	if (IS_ERR(st->reg))  in ad7791_probe()
374 		return PTR_ERR(st->reg);  in ad7791_probe()
376 	ret = regulator_enable(st->reg);  in ad7791_probe()
380 	st->info = &ad7791_chip_infos[spi_get_device_id(spi)->driver_data];  in ad7791_probe()
381 	ad_sd_init(&st->sd, indio_dev, spi, &ad7791_sigma_delta_info);  in ad7791_probe()
388 	indio_dev->channels = st->info->channels;  in ad7791_probe()
389 	indio_dev->num_channels = st->info->num_channels;  in ad7791_probe()
390 	if (st->info->flags & AD7791_FLAG_HAS_FILTER)  in ad7791_probe()
399 	ret = ad7791_setup(st, pdata);  in ad7791_probe()
412 	regulator_disable(st->reg);  in ad7791_probe()
420 	struct ad7791_state *st = iio_priv(indio_dev);  in ad7791_remove()  local
425 	regulator_disable(st->reg);  in ad7791_remove()