223 	struct max1027_state *st = iio_priv(indio_dev);  in max1027_read_single_value()  local
231 	st->reg = MAX1027_SETUP_REG | MAX1027_REF_MODE2 | MAX1027_CKS_MODE2;  in max1027_read_single_value()
232 	ret = spi_write(st->spi, &st->reg, 1);  in max1027_read_single_value()
240 	st->reg = MAX1027_CONV_REG | MAX1027_CHAN(chan->channel) |  in max1027_read_single_value()
242 	ret = spi_write(st->spi, &st->reg, 1);  in max1027_read_single_value()
257 	ret = spi_read(st->spi, st->buffer, (chan->type == IIO_TEMP) ? 4 : 2);  in max1027_read_single_value()
261 	*val = be16_to_cpu(st->buffer[0]);  in max1027_read_single_value()
271 	struct max1027_state *st = iio_priv(indio_dev);  in max1027_read_raw()  local
273 	mutex_lock(&st->lock);  in max1027_read_raw()
301 	mutex_unlock(&st->lock);  in max1027_read_raw()
310 	struct max1027_state *st = iio_priv(indio_dev);  in max1027_debugfs_reg_access()  local
311 	u8 *val = (u8 *)st->buffer;  in max1027_debugfs_reg_access()
317 	return spi_write(st->spi, val, 1);  in max1027_debugfs_reg_access()
323 	struct max1027_state *st = iio_priv(indio_dev);  in max1027_validate_trigger()  local
325 	if (st->trig != trig)  in max1027_validate_trigger()
334 	struct max1027_state *st = iio_priv(indio_dev);  in max1027_set_trigger_state()  local
339 		st->reg = MAX1027_SETUP_REG | MAX1027_CKS_MODE0 |  in max1027_set_trigger_state()
341 		ret = spi_write(st->spi, &st->reg, 1);  in max1027_set_trigger_state()
346 		st->reg = MAX1027_CONV_REG | MAX1027_CHAN(0) |  in max1027_set_trigger_state()
348 		ret = spi_write(st->spi, &st->reg, 1);  in max1027_set_trigger_state()
353 		st->reg = MAX1027_SETUP_REG | MAX1027_CKS_MODE2	|  in max1027_set_trigger_state()
355 		ret = spi_write(st->spi, &st->reg, 1);  in max1027_set_trigger_state()
378 	struct max1027_state *st = iio_priv(indio_dev);  in max1027_trigger_handler()  local
383 	spi_read(st->spi, st->buffer, indio_dev->masklength * 2);  in max1027_trigger_handler()
385 	iio_push_to_buffers(indio_dev, st->buffer);  in max1027_trigger_handler()
409 	struct max1027_state *st;  in max1027_probe()  local
413 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));  in max1027_probe()
421 	st = iio_priv(indio_dev);  in max1027_probe()
422 	st->spi = spi;  in max1027_probe()
423 	st->info = &max1027_chip_info_tbl[spi_get_device_id(spi)->driver_data];  in max1027_probe()
425 	mutex_init(&st->lock);  in max1027_probe()
431 	indio_dev->channels = st->info->channels;  in max1027_probe()
432 	indio_dev->num_channels = st->info->num_channels;  in max1027_probe()
433 	indio_dev->available_scan_masks = st->info->available_scan_masks;  in max1027_probe()
435 	st->buffer = devm_kmalloc(&indio_dev->dev,  in max1027_probe()
438 	if (st->buffer == NULL) {  in max1027_probe()
450 	st->trig = devm_iio_trigger_alloc(&spi->dev, "%s-trigger",  in max1027_probe()
452 	if (st->trig == NULL) {  in max1027_probe()
458 	st->trig->ops = &max1027_trigger_ops;  in max1027_probe()
459 	st->trig->dev.parent = &spi->dev;  in max1027_probe()
460 	iio_trigger_set_drvdata(st->trig, indio_dev);  in max1027_probe()
461 	iio_trigger_register(st->trig);  in max1027_probe()
467 					spi->dev.driver->name, st->trig);  in max1027_probe()
474 	st->reg = MAX1027_AVG_REG;  in max1027_probe()
475 	ret = spi_write(st->spi, &st->reg, 1);  in max1027_probe()