iio/dac/ad5360.c

193 static int ad5360_write_unlocked(struct iio_dev *indio_dev,
197 	struct ad5360_state *st = iio_priv(indio_dev);
206 static int ad5360_write(struct iio_dev *indio_dev, unsigned int cmd,
210 	struct ad5360_state *st = iio_priv(indio_dev);
213 	ret = ad5360_write_unlocked(indio_dev, cmd, addr, val, shift);
219 static int ad5360_read(struct iio_dev *indio_dev, unsigned int type,
222 	struct ad5360_state *st = iio_priv(indio_dev);
255 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
256 	struct ad5360_state *st = iio_priv(indio_dev);
261 static int ad5360_update_ctrl(struct iio_dev *indio_dev, unsigned int set,
264 	struct ad5360_state *st = iio_priv(indio_dev);
272 	ret = ad5360_write_unlocked(indio_dev, AD5360_CMD_SPECIAL_FUNCTION,
283 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
292 		ret = ad5360_update_ctrl(indio_dev, AD5360_SF_CTRL_PWR_DOWN, 0);
294 		ret = ad5360_update_ctrl(indio_dev, 0, AD5360_SF_CTRL_PWR_DOWN);
313 static int ad5360_write_raw(struct iio_dev *indio_dev,
319 	struct ad5360_state *st = iio_priv(indio_dev);
328 		return ad5360_write(indio_dev, AD5360_CMD_WRITE_DATA,
335 		return ad5360_write(indio_dev, AD5360_CMD_WRITE_OFFSET,
342 		return ad5360_write(indio_dev, AD5360_CMD_WRITE_GAIN,
360 		return ad5360_write(indio_dev, AD5360_CMD_SPECIAL_FUNCTION,
369 static int ad5360_read_raw(struct iio_dev *indio_dev,
375 	struct ad5360_state *st = iio_priv(indio_dev);
382 		ret = ad5360_read(indio_dev, AD5360_READBACK_X1A,
398 		ret = ad5360_read(indio_dev, AD5360_READBACK_OFFSET,
405 		ret = ad5360_read(indio_dev, AD5360_READBACK_GAIN,
413 		ret = ad5360_read(indio_dev, AD5360_READBACK_SF,
436 static int ad5360_alloc_channels(struct iio_dev *indio_dev)
438 	struct ad5360_state *st = iio_priv(indio_dev);
454 	indio_dev->channels = channels;
462 	struct iio_dev *indio_dev;
467 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
468 	if (indio_dev == NULL) {
473 	st = iio_priv(indio_dev);
474 	spi_set_drvdata(spi, indio_dev);
479 	indio_dev->name = spi_get_device_id(spi)->name;
480 	indio_dev->info = &ad5360_info;
481 	indio_dev->modes = INDIO_DIRECT_MODE;
482 	indio_dev->num_channels = st->chip_info->num_channels;
486 	ret = ad5360_alloc_channels(indio_dev);
508 	ret = iio_device_register(indio_dev);
519 	kfree(indio_dev->channels);
526 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
527 	struct ad5360_state *st = iio_priv(indio_dev);
529 	iio_device_unregister(indio_dev);
531 	kfree(indio_dev->channels);