217 static int zpa2326_enable_device(const struct iio_dev *indio_dev)  in zpa2326_enable_device()  argument
222 			    iio_priv(indio_dev))->regmap,  in zpa2326_enable_device()
225 		zpa2326_err(indio_dev, "failed to enable device (%d)", err);  in zpa2326_enable_device()
229 	zpa2326_dbg(indio_dev, "enabled");  in zpa2326_enable_device()
243 static int zpa2326_sleep(const struct iio_dev *indio_dev)  in zpa2326_sleep()  argument
248 			    iio_priv(indio_dev))->regmap,  in zpa2326_sleep()
251 		zpa2326_err(indio_dev, "failed to sleep (%d)", err);  in zpa2326_sleep()
255 	zpa2326_dbg(indio_dev, "sleeping");  in zpa2326_sleep()
269 static int zpa2326_reset_device(const struct iio_dev *indio_dev)  in zpa2326_reset_device()  argument
274 			    iio_priv(indio_dev))->regmap,  in zpa2326_reset_device()
277 		zpa2326_err(indio_dev, "failed to reset device (%d)", err);  in zpa2326_reset_device()
283 	zpa2326_dbg(indio_dev, "reset");  in zpa2326_reset_device()
298 static int zpa2326_start_oneshot(const struct iio_dev *indio_dev)  in zpa2326_start_oneshot()  argument
303 			    iio_priv(indio_dev))->regmap,  in zpa2326_start_oneshot()
308 		zpa2326_err(indio_dev, "failed to start one shot cycle (%d)",  in zpa2326_start_oneshot()
313 	zpa2326_dbg(indio_dev, "one shot cycle started");  in zpa2326_start_oneshot()
330 static int zpa2326_power_on(const struct iio_dev         *indio_dev,  in zpa2326_power_on()  argument
343 	zpa2326_dbg(indio_dev, "powered on");  in zpa2326_power_on()
345 	err = zpa2326_enable_device(indio_dev);  in zpa2326_power_on()
349 	err = zpa2326_reset_device(indio_dev);  in zpa2326_power_on()
356 	zpa2326_sleep(indio_dev);  in zpa2326_power_on()
362 	zpa2326_dbg(indio_dev, "powered off");  in zpa2326_power_on()
375 static void zpa2326_power_off(const struct iio_dev         *indio_dev,  in zpa2326_power_off()  argument
381 	zpa2326_dbg(indio_dev, "powered off");  in zpa2326_power_off()
401 static int zpa2326_config_oneshot(const struct iio_dev *indio_dev,  in zpa2326_config_oneshot()  argument
405 						iio_priv(indio_dev))->regmap;  in zpa2326_config_oneshot()
420 			dev_err(indio_dev->dev.parent,  in zpa2326_config_oneshot()
426 	zpa2326_dbg(indio_dev, "one shot mode setup @%dHz", freq->hz);  in zpa2326_config_oneshot()
443 static int zpa2326_clear_fifo(const struct iio_dev *indio_dev,  in zpa2326_clear_fifo()  argument
447 			       iio_priv(indio_dev))->regmap;  in zpa2326_clear_fifo()
491 	zpa2326_dbg(indio_dev, "FIFO cleared");  in zpa2326_clear_fifo()
496 	zpa2326_err(indio_dev, "failed to clear FIFO (%d)", err);  in zpa2326_clear_fifo()
511 static int zpa2326_dequeue_pressure(const struct iio_dev *indio_dev,  in zpa2326_dequeue_pressure()  argument
515 			       iio_priv(indio_dev))->regmap;  in zpa2326_dequeue_pressure()
531 		zpa2326_warn(indio_dev, "FIFO overflow");  in zpa2326_dequeue_pressure()
540 		return zpa2326_clear_fifo(indio_dev, ZPA2326_FIFO_DEPTH - 1);  in zpa2326_dequeue_pressure()
566 		zpa2326_dbg(indio_dev, "cleared %d FIFO entries", cleared);  in zpa2326_dequeue_pressure()
578 static int zpa2326_fill_sample_buffer(struct iio_dev               *indio_dev,  in zpa2326_fill_sample_buffer()  argument
588 	if (test_bit(0, indio_dev->active_scan_mask)) {  in zpa2326_fill_sample_buffer()
590 		err = zpa2326_dequeue_pressure(indio_dev, &sample.pressure);  in zpa2326_fill_sample_buffer()
592 			zpa2326_warn(indio_dev, "failed to fetch pressure (%d)",  in zpa2326_fill_sample_buffer()
598 	if (test_bit(1, indio_dev->active_scan_mask)) {  in zpa2326_fill_sample_buffer()
603 			zpa2326_warn(indio_dev,  in zpa2326_fill_sample_buffer()
616 	zpa2326_dbg(indio_dev, "filling raw samples buffer");  in zpa2326_fill_sample_buffer()
618 	iio_push_to_buffers_with_timestamp(indio_dev, &sample,  in zpa2326_fill_sample_buffer()
627 	const struct iio_dev *indio_dev = dev_get_drvdata(parent);  in zpa2326_runtime_suspend()  local
633 	zpa2326_power_off(indio_dev, iio_priv(indio_dev));  in zpa2326_runtime_suspend()
640 	const struct iio_dev *indio_dev = dev_get_drvdata(parent);  in zpa2326_runtime_resume()  local
642 	return zpa2326_power_on(indio_dev, iio_priv(indio_dev));  in zpa2326_runtime_resume()
662 static int zpa2326_resume(const struct iio_dev *indio_dev)  in zpa2326_resume()  argument
666 	err = pm_runtime_get_sync(indio_dev->dev.parent);  in zpa2326_resume()
675 		zpa2326_enable_device(indio_dev);  in zpa2326_resume()
691 static void zpa2326_suspend(struct iio_dev *indio_dev)  in zpa2326_suspend()  argument
693 	struct device *parent = indio_dev->dev.parent;  in zpa2326_suspend()
695 	zpa2326_sleep(indio_dev);  in zpa2326_suspend()
718 static int zpa2326_resume(const struct iio_dev *indio_dev)  in zpa2326_resume()  argument
720 	zpa2326_enable_device(indio_dev);  in zpa2326_resume()
725 static void zpa2326_suspend(struct iio_dev *indio_dev)  in zpa2326_suspend()  argument
727 	zpa2326_sleep(indio_dev);  in zpa2326_suspend()
746 	struct iio_dev *indio_dev = data;  in zpa2326_handle_irq()  local
748 	if (iio_buffer_enabled(indio_dev)) {  in zpa2326_handle_irq()
751 		 iio_priv(indio_dev))->timestamp = iio_get_time_ns(indio_dev);  in zpa2326_handle_irq()
785 	struct iio_dev         *indio_dev = data;  in zpa2326_handle_threaded_irq()  local
786 	struct zpa2326_private *priv = iio_priv(indio_dev);  in zpa2326_handle_threaded_irq()
795 	cont = (iio_buffer_enabled(indio_dev) &&  in zpa2326_handle_threaded_irq()
796 		iio_trigger_using_own(indio_dev));  in zpa2326_handle_threaded_irq()
818 		zpa2326_warn(indio_dev, "unexpected interrupt status %02x",  in zpa2326_handle_threaded_irq()
857 static int zpa2326_wait_oneshot_completion(const struct iio_dev   *indio_dev,  in zpa2326_wait_oneshot_completion()  argument
863 	zpa2326_dbg(indio_dev, "waiting for one shot completion interrupt");  in zpa2326_wait_oneshot_completion()
879 		zpa2326_warn(indio_dev, "no one shot interrupt occurred (%ld)",  in zpa2326_wait_oneshot_completion()
884 	zpa2326_warn(indio_dev, "wait for one shot interrupt cancelled");  in zpa2326_wait_oneshot_completion()
889 				    struct iio_dev         *indio_dev,  in zpa2326_init_managed_irq()  argument
912 					dev_name(parent), indio_dev);  in zpa2326_init_managed_irq()
933 static int zpa2326_poll_oneshot_completion(const struct iio_dev *indio_dev)  in zpa2326_poll_oneshot_completion()  argument
937 			       iio_priv(indio_dev))->regmap;  in zpa2326_poll_oneshot_completion()
941 	zpa2326_dbg(indio_dev, "polling for one shot completion");  in zpa2326_poll_oneshot_completion()
987 	zpa2326_warn(indio_dev, "failed to poll one shot completion (%d)", err);  in zpa2326_poll_oneshot_completion()
1001 static int zpa2326_fetch_raw_sample(const struct iio_dev *indio_dev,  in zpa2326_fetch_raw_sample()  argument
1006 			       iio_priv(indio_dev))->regmap;  in zpa2326_fetch_raw_sample()
1011 		zpa2326_dbg(indio_dev, "fetching raw pressure sample");  in zpa2326_fetch_raw_sample()
1016 			zpa2326_warn(indio_dev, "failed to fetch pressure (%d)",  in zpa2326_fetch_raw_sample()
1028 		zpa2326_dbg(indio_dev, "fetching raw temperature sample");  in zpa2326_fetch_raw_sample()
1032 			zpa2326_warn(indio_dev,  in zpa2326_fetch_raw_sample()
1055 static int zpa2326_sample_oneshot(struct iio_dev     *indio_dev,  in zpa2326_sample_oneshot()  argument
1062 	ret = iio_device_claim_direct_mode(indio_dev);  in zpa2326_sample_oneshot()
1066 	ret = zpa2326_resume(indio_dev);  in zpa2326_sample_oneshot()
1070 	priv = iio_priv(indio_dev);  in zpa2326_sample_oneshot()
1085 			ret = zpa2326_clear_fifo(indio_dev, 0);  in zpa2326_sample_oneshot()
1095 		ret = zpa2326_config_oneshot(indio_dev, priv->irq);  in zpa2326_sample_oneshot()
1101 	ret = zpa2326_start_oneshot(indio_dev);  in zpa2326_sample_oneshot()
1107 		ret = zpa2326_wait_oneshot_completion(indio_dev, priv);  in zpa2326_sample_oneshot()
1109 		ret = zpa2326_poll_oneshot_completion(indio_dev);  in zpa2326_sample_oneshot()
1115 	ret = zpa2326_fetch_raw_sample(indio_dev, type, value);  in zpa2326_sample_oneshot()
1118 	zpa2326_suspend(indio_dev);  in zpa2326_sample_oneshot()
1120 	iio_device_release_direct_mode(indio_dev);  in zpa2326_sample_oneshot()
1154 	struct iio_dev         *indio_dev = ((struct iio_poll_func *)  in zpa2326_trigger_handler()  local
1155 					     data)->indio_dev;  in zpa2326_trigger_handler()
1156 	struct zpa2326_private *priv = iio_priv(indio_dev);  in zpa2326_trigger_handler()
1164 	cont = iio_trigger_using_own(indio_dev);  in zpa2326_trigger_handler()
1168 		if (zpa2326_start_oneshot(indio_dev))  in zpa2326_trigger_handler()
1174 			if (zpa2326_poll_oneshot_completion(indio_dev))  in zpa2326_trigger_handler()
1178 			priv->timestamp = iio_get_time_ns(indio_dev);  in zpa2326_trigger_handler()
1181 			if (zpa2326_wait_oneshot_completion(indio_dev, priv))  in zpa2326_trigger_handler()
1187 	zpa2326_fill_sample_buffer(indio_dev, priv);  in zpa2326_trigger_handler()
1192 		zpa2326_sleep(indio_dev);  in zpa2326_trigger_handler()
1195 	iio_trigger_notify_done(indio_dev->trig);  in zpa2326_trigger_handler()
1211 static int zpa2326_preenable_buffer(struct iio_dev *indio_dev)  in zpa2326_preenable_buffer()  argument
1213 	int ret = zpa2326_resume(indio_dev);  in zpa2326_preenable_buffer()
1220 	 iio_priv(indio_dev))->waken = iio_priv(indio_dev);  in zpa2326_preenable_buffer()
1241 static int zpa2326_postenable_buffer(struct iio_dev *indio_dev)  in zpa2326_postenable_buffer()  argument
1243 	const struct zpa2326_private *priv = iio_priv(indio_dev);  in zpa2326_postenable_buffer()
1251 		err = zpa2326_clear_fifo(indio_dev, 0);  in zpa2326_postenable_buffer()
1256 	if (!iio_trigger_using_own(indio_dev) && priv->waken) {  in zpa2326_postenable_buffer()
1261 		err = zpa2326_config_oneshot(indio_dev, priv->irq);  in zpa2326_postenable_buffer()
1267 	err = iio_triggered_buffer_postenable(indio_dev);  in zpa2326_postenable_buffer()
1274 	zpa2326_err(indio_dev, "failed to enable buffering (%d)", err);  in zpa2326_postenable_buffer()
1279 static int zpa2326_postdisable_buffer(struct iio_dev *indio_dev)  in zpa2326_postdisable_buffer()  argument
1281 	zpa2326_suspend(indio_dev);  in zpa2326_postdisable_buffer()
1307 	const struct iio_dev         *indio_dev = dev_get_drvdata(  in zpa2326_set_trigger_state()  local
1309 	const struct zpa2326_private *priv = iio_priv(indio_dev);  in zpa2326_set_trigger_state()
1354 		zpa2326_dbg(indio_dev, "continuous mode stopped");  in zpa2326_set_trigger_state()
1377 		zpa2326_dbg(indio_dev, "continuous mode setup @%dHz",  in zpa2326_set_trigger_state()
1404 					struct iio_dev         *indio_dev,  in zpa2326_init_managed_trigger()  argument
1415 					 indio_dev->name, indio_dev->id);  in zpa2326_init_managed_trigger()
1434 static int zpa2326_get_frequency(const struct iio_dev *indio_dev)  in zpa2326_get_frequency()  argument
1436 	return ((struct zpa2326_private *)iio_priv(indio_dev))->frequency->hz;  in zpa2326_get_frequency()
1439 static int zpa2326_set_frequency(struct iio_dev *indio_dev, int hz)  in zpa2326_set_frequency()  argument
1441 	struct zpa2326_private *priv = iio_priv(indio_dev);  in zpa2326_set_frequency()
1453 	err = iio_device_claim_direct_mode(indio_dev);  in zpa2326_set_frequency()
1459 	iio_device_release_direct_mode(indio_dev);  in zpa2326_set_frequency()
1476 static int zpa2326_read_raw(struct iio_dev             *indio_dev,  in zpa2326_read_raw()  argument
1484 		return zpa2326_sample_oneshot(indio_dev, chan->type, val);  in zpa2326_read_raw()
1532 		*val = zpa2326_get_frequency(indio_dev);  in zpa2326_read_raw()
1540 static int zpa2326_write_raw(struct iio_dev             *indio_dev,  in zpa2326_write_raw()  argument
1549 	return zpa2326_set_frequency(indio_dev, val);  in zpa2326_write_raw()
1593 	struct iio_dev *indio_dev;  in zpa2326_create_managed_iiodev()  local
1596 	indio_dev = devm_iio_device_alloc(device,  in zpa2326_create_managed_iiodev()
1598 	if (!indio_dev)  in zpa2326_create_managed_iiodev()
1602 	indio_dev->modes = INDIO_DIRECT_MODE;  in zpa2326_create_managed_iiodev()
1603 	indio_dev->dev.parent = device;  in zpa2326_create_managed_iiodev()
1604 	indio_dev->channels = zpa2326_channels;  in zpa2326_create_managed_iiodev()
1605 	indio_dev->num_channels = ARRAY_SIZE(zpa2326_channels);  in zpa2326_create_managed_iiodev()
1606 	indio_dev->name = name;  in zpa2326_create_managed_iiodev()
1607 	indio_dev->info = &zpa2326_info;  in zpa2326_create_managed_iiodev()
1609 	return indio_dev;  in zpa2326_create_managed_iiodev()
1618 	struct iio_dev         *indio_dev;  in zpa2326_probe()  local
1623 	indio_dev = zpa2326_create_managed_iiodev(parent, name, regmap);  in zpa2326_probe()
1624 	if (!indio_dev)  in zpa2326_probe()
1627 	priv = iio_priv(indio_dev);  in zpa2326_probe()
1647 	err = devm_iio_triggered_buffer_setup(parent, indio_dev, NULL,  in zpa2326_probe()
1653 	err = zpa2326_init_managed_trigger(parent, indio_dev, priv, irq);  in zpa2326_probe()
1657 	err = zpa2326_init_managed_irq(parent, indio_dev, priv, irq);  in zpa2326_probe()
1662 	err = zpa2326_power_on(indio_dev, priv);  in zpa2326_probe()
1677 	err = zpa2326_config_oneshot(indio_dev, irq);  in zpa2326_probe()
1682 	err = zpa2326_sleep(indio_dev);  in zpa2326_probe()
1686 	dev_set_drvdata(parent, indio_dev);  in zpa2326_probe()
1690 	err = iio_device_register(indio_dev);  in zpa2326_probe()
1700 	zpa2326_sleep(indio_dev);  in zpa2326_probe()
1702 	zpa2326_power_off(indio_dev, priv);  in zpa2326_probe()
1710 	struct iio_dev *indio_dev = dev_get_drvdata(parent);  in zpa2326_remove()  local
1712 	iio_device_unregister(indio_dev);  in zpa2326_remove()
1713 	zpa2326_fini_runtime(indio_dev->dev.parent);  in zpa2326_remove()
1714 	zpa2326_sleep(indio_dev);  in zpa2326_remove()
1715 	zpa2326_power_off(indio_dev, iio_priv(indio_dev));  in zpa2326_remove()