133 static int ad5421_write_unlocked(struct iio_dev *indio_dev,  in ad5421_write_unlocked()  argument
136 	struct ad5421_state *st = iio_priv(indio_dev);  in ad5421_write_unlocked()
143 static int ad5421_write(struct iio_dev *indio_dev, unsigned int reg,  in ad5421_write()  argument
148 	mutex_lock(&indio_dev->mlock);  in ad5421_write()
149 	ret = ad5421_write_unlocked(indio_dev, reg, val);  in ad5421_write()
150 	mutex_unlock(&indio_dev->mlock);  in ad5421_write()
155 static int ad5421_read(struct iio_dev *indio_dev, unsigned int reg)  in ad5421_read()  argument
157 	struct ad5421_state *st = iio_priv(indio_dev);  in ad5421_read()
170 	mutex_lock(&indio_dev->mlock);  in ad5421_read()
178 	mutex_unlock(&indio_dev->mlock);  in ad5421_read()
183 static int ad5421_update_ctrl(struct iio_dev *indio_dev, unsigned int set,  in ad5421_update_ctrl()  argument
186 	struct ad5421_state *st = iio_priv(indio_dev);  in ad5421_update_ctrl()
189 	mutex_lock(&indio_dev->mlock);  in ad5421_update_ctrl()
194 	ret = ad5421_write_unlocked(indio_dev, AD5421_REG_CTRL, st->ctrl);  in ad5421_update_ctrl()
196 	mutex_unlock(&indio_dev->mlock);  in ad5421_update_ctrl()
203 	struct iio_dev *indio_dev = data;  in ad5421_fault_handler()  local
204 	struct ad5421_state *st = iio_priv(indio_dev);  in ad5421_fault_handler()
209 	fault = ad5421_read(indio_dev, AD5421_REG_FAULT);  in ad5421_fault_handler()
218 	ad5421_update_ctrl(indio_dev, 0, 0);  in ad5421_fault_handler()
240 			iio_push_event(indio_dev,  in ad5421_fault_handler()
249 			iio_push_event(indio_dev,  in ad5421_fault_handler()
258 			iio_push_event(indio_dev,  in ad5421_fault_handler()
267 		fault = ad5421_read(indio_dev, AD5421_REG_FAULT);  in ad5421_fault_handler()
312 static int ad5421_read_raw(struct iio_dev *indio_dev,  in ad5421_read_raw()  argument
315 	struct ad5421_state *st = iio_priv(indio_dev);  in ad5421_read_raw()
324 		ret = ad5421_read(indio_dev, AD5421_REG_DAC_DATA);  in ad5421_read_raw()
338 		ret = ad5421_read(indio_dev, AD5421_REG_OFFSET);  in ad5421_read_raw()
344 		ret = ad5421_read(indio_dev, AD5421_REG_GAIN);  in ad5421_read_raw()
354 static int ad5421_write_raw(struct iio_dev *indio_dev,  in ad5421_write_raw()  argument
364 		return ad5421_write(indio_dev, AD5421_REG_DAC_DATA, val);  in ad5421_write_raw()
370 		return ad5421_write(indio_dev, AD5421_REG_OFFSET, val);  in ad5421_write_raw()
375 		return ad5421_write(indio_dev, AD5421_REG_GAIN, val);  in ad5421_write_raw()
383 static int ad5421_write_event_config(struct iio_dev *indio_dev,  in ad5421_write_event_config()  argument
387 	struct ad5421_state *st = iio_priv(indio_dev);  in ad5421_write_event_config()
404 	mutex_lock(&indio_dev->mlock);  in ad5421_write_event_config()
409 	mutex_unlock(&indio_dev->mlock);  in ad5421_write_event_config()
414 static int ad5421_read_event_config(struct iio_dev *indio_dev,  in ad5421_read_event_config()  argument
418 	struct ad5421_state *st = iio_priv(indio_dev);  in ad5421_read_event_config()
438 static int ad5421_read_event_value(struct iio_dev *indio_dev,  in ad5421_read_event_value()  argument
447 		ret = ad5421_read(indio_dev, AD5421_REG_DAC_DATA);  in ad5421_read_event_value()
474 	struct iio_dev *indio_dev;  in ad5421_probe()  local
478 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));  in ad5421_probe()
479 	if (indio_dev == NULL) {  in ad5421_probe()
484 	st = iio_priv(indio_dev);  in ad5421_probe()
485 	spi_set_drvdata(spi, indio_dev);  in ad5421_probe()
489 	indio_dev->dev.parent = &spi->dev;  in ad5421_probe()
490 	indio_dev->name = "ad5421";  in ad5421_probe()
491 	indio_dev->info = &ad5421_info;  in ad5421_probe()
492 	indio_dev->modes = INDIO_DIRECT_MODE;  in ad5421_probe()
493 	indio_dev->channels = ad5421_channels;  in ad5421_probe()
494 	indio_dev->num_channels = ARRAY_SIZE(ad5421_channels);  in ad5421_probe()
508 	ad5421_update_ctrl(indio_dev, 0, 0);  in ad5421_probe()
516 					   indio_dev);  in ad5421_probe()
521 	return devm_iio_device_register(&spi->dev, indio_dev);  in ad5421_probe()