170 	void (*irq_clear)(struct iio_dev *indio_dev, u32 msk);
543 	struct iio_dev *indio_dev = dev_get_drvdata(dev);  in stm32_adc_hw_stop()  local
544 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_hw_stop()
547 		adc->cfg->unprepare(indio_dev);  in stm32_adc_hw_stop()
557 	struct iio_dev *indio_dev = dev_get_drvdata(dev);  in stm32_adc_hw_start()  local
558 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_hw_start()
570 		ret = adc->cfg->prepare(indio_dev);  in stm32_adc_hw_start()
594 static void stm32f4_adc_start_conv(struct iio_dev *indio_dev, bool dma)  in stm32f4_adc_start_conv()  argument
596 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32f4_adc_start_conv()
614 static void stm32f4_adc_stop_conv(struct iio_dev *indio_dev)  in stm32f4_adc_stop_conv()  argument
616 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32f4_adc_stop_conv()
626 static void stm32f4_adc_irq_clear(struct iio_dev *indio_dev, u32 msk)  in stm32f4_adc_irq_clear()  argument
628 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32f4_adc_irq_clear()
633 static void stm32h7_adc_start_conv(struct iio_dev *indio_dev, bool dma)  in stm32h7_adc_start_conv()  argument
635 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_start_conv()
654 static void stm32h7_adc_stop_conv(struct iio_dev *indio_dev)  in stm32h7_adc_stop_conv()  argument
656 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_stop_conv()
666 		dev_warn(&indio_dev->dev, "stop failed\n");  in stm32h7_adc_stop_conv()
671 static void stm32h7_adc_irq_clear(struct iio_dev *indio_dev, u32 msk)  in stm32h7_adc_irq_clear()  argument
673 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_irq_clear()
678 static int stm32h7_adc_exit_pwr_down(struct iio_dev *indio_dev)  in stm32h7_adc_exit_pwr_down()  argument
680 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_exit_pwr_down()
702 		dev_err(&indio_dev->dev, "Failed to exit power down\n");  in stm32h7_adc_exit_pwr_down()
716 static int stm32h7_adc_enable(struct iio_dev *indio_dev)  in stm32h7_adc_enable()  argument
718 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_enable()
730 		dev_err(&indio_dev->dev, "Failed to enable ADC\n");  in stm32h7_adc_enable()
739 static void stm32h7_adc_disable(struct iio_dev *indio_dev)  in stm32h7_adc_disable()  argument
741 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_disable()
751 		dev_warn(&indio_dev->dev, "Failed to disable\n");  in stm32h7_adc_disable()
759 static int stm32h7_adc_read_selfcalib(struct iio_dev *indio_dev)  in stm32h7_adc_read_selfcalib()  argument
761 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_read_selfcalib()
776 			dev_err(&indio_dev->dev, "Failed to read calfact\n");  in stm32h7_adc_read_selfcalib()
803 static int stm32h7_adc_restore_selfcalib(struct iio_dev *indio_dev)  in stm32h7_adc_restore_selfcalib()  argument
805 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_restore_selfcalib()
827 			dev_err(&indio_dev->dev, "Failed to write calfact\n");  in stm32h7_adc_restore_selfcalib()
843 			dev_err(&indio_dev->dev, "Failed to read calfact\n");  in stm32h7_adc_restore_selfcalib()
848 			dev_err(&indio_dev->dev, "calfact not consistent\n");  in stm32h7_adc_restore_selfcalib()
876 static int stm32h7_adc_selfcalib(struct iio_dev *indio_dev)  in stm32h7_adc_selfcalib()  argument
878 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_selfcalib()
899 		dev_err(&indio_dev->dev, "calibration failed\n");  in stm32h7_adc_selfcalib()
916 		dev_err(&indio_dev->dev, "calibration failed\n");  in stm32h7_adc_selfcalib()
938 static int stm32h7_adc_prepare(struct iio_dev *indio_dev)  in stm32h7_adc_prepare()  argument
940 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_prepare()
943 	ret = stm32h7_adc_exit_pwr_down(indio_dev);  in stm32h7_adc_prepare()
947 	ret = stm32h7_adc_selfcalib(indio_dev);  in stm32h7_adc_prepare()
954 	ret = stm32h7_adc_enable(indio_dev);  in stm32h7_adc_prepare()
960 		ret = stm32h7_adc_restore_selfcalib(indio_dev);  in stm32h7_adc_prepare()
962 		ret = stm32h7_adc_read_selfcalib(indio_dev);  in stm32h7_adc_prepare()
971 	stm32h7_adc_disable(indio_dev);  in stm32h7_adc_prepare()
978 static void stm32h7_adc_unprepare(struct iio_dev *indio_dev)  in stm32h7_adc_unprepare()  argument
980 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_unprepare()
982 	stm32h7_adc_disable(indio_dev);  in stm32h7_adc_unprepare()
997 static int stm32_adc_conf_scan_seq(struct iio_dev *indio_dev,  in stm32_adc_conf_scan_seq()  argument
1000 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_conf_scan_seq()
1010 	for_each_set_bit(bit, scan_mask, indio_dev->masklength) {  in stm32_adc_conf_scan_seq()
1011 		chan = indio_dev->channels + bit;  in stm32_adc_conf_scan_seq()
1020 		dev_dbg(&indio_dev->dev, "%s chan %d to SQ%d\n",  in stm32_adc_conf_scan_seq()
1048 static int stm32_adc_get_trig_extsel(struct iio_dev *indio_dev,  in stm32_adc_get_trig_extsel()  argument
1051 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_get_trig_extsel()
1079 static int stm32_adc_set_trig(struct iio_dev *indio_dev,  in stm32_adc_set_trig()  argument
1082 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_set_trig()
1088 		ret = stm32_adc_get_trig_extsel(indio_dev, trig);  in stm32_adc_set_trig()
1108 static int stm32_adc_set_trig_pol(struct iio_dev *indio_dev,  in stm32_adc_set_trig_pol()  argument
1112 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_set_trig_pol()
1119 static int stm32_adc_get_trig_pol(struct iio_dev *indio_dev,  in stm32_adc_get_trig_pol()  argument
1122 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_get_trig_pol()
1150 static int stm32_adc_single_conv(struct iio_dev *indio_dev,  in stm32_adc_single_conv()  argument
1154 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_single_conv()
1155 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_single_conv()
1189 	adc->cfg->start_conv(indio_dev, false);  in stm32_adc_single_conv()
1202 	adc->cfg->stop_conv(indio_dev);  in stm32_adc_single_conv()
1212 static int stm32_adc_read_raw(struct iio_dev *indio_dev,  in stm32_adc_read_raw()  argument
1216 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_read_raw()
1221 		ret = iio_device_claim_direct_mode(indio_dev);  in stm32_adc_read_raw()
1225 			ret = stm32_adc_single_conv(indio_dev, chan, val);  in stm32_adc_read_raw()
1228 		iio_device_release_direct_mode(indio_dev);  in stm32_adc_read_raw()
1254 static void stm32_adc_irq_clear(struct iio_dev *indio_dev, u32 msk)  in stm32_adc_irq_clear()  argument
1256 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_irq_clear()
1258 	adc->cfg->irq_clear(indio_dev, msk);  in stm32_adc_irq_clear()
1263 	struct iio_dev *indio_dev = data;  in stm32_adc_threaded_isr()  local
1264 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_threaded_isr()
1276 		adc->cfg->stop_conv(indio_dev);  in stm32_adc_threaded_isr()
1277 		stm32_adc_irq_clear(indio_dev, regs->isr_ovr.mask);  in stm32_adc_threaded_isr()
1278 		dev_err(&indio_dev->dev, "Overrun, stopping: restart needed\n");  in stm32_adc_threaded_isr()
1283 		dev_err_ratelimited(&indio_dev->dev,  in stm32_adc_threaded_isr()
1292 	struct iio_dev *indio_dev = data;  in stm32_adc_isr()  local
1293 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_isr()
1317 		if (iio_buffer_enabled(indio_dev)) {  in stm32_adc_isr()
1321 				iio_trigger_poll(indio_dev->trig);  in stm32_adc_isr()
1340 static int stm32_adc_validate_trigger(struct iio_dev *indio_dev,  in stm32_adc_validate_trigger()  argument
1343 	return stm32_adc_get_trig_extsel(indio_dev, trig) < 0 ? -EINVAL : 0;  in stm32_adc_validate_trigger()
1346 static int stm32_adc_set_watermark(struct iio_dev *indio_dev, unsigned int val)  in stm32_adc_set_watermark()  argument
1348 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_set_watermark()
1364 static int stm32_adc_update_scan_mode(struct iio_dev *indio_dev,  in stm32_adc_update_scan_mode()  argument
1367 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_update_scan_mode()
1368 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_update_scan_mode()
1377 	adc->num_conv = bitmap_weight(scan_mask, indio_dev->masklength);  in stm32_adc_update_scan_mode()
1379 	ret = stm32_adc_conf_scan_seq(indio_dev, scan_mask);  in stm32_adc_update_scan_mode()
1386 static int stm32_adc_of_xlate(struct iio_dev *indio_dev,  in stm32_adc_of_xlate()  argument
1391 	for (i = 0; i < indio_dev->num_channels; i++)  in stm32_adc_of_xlate()
1392 		if (indio_dev->channels[i].channel == iiospec->args[0])  in stm32_adc_of_xlate()
1412 static int stm32_adc_debugfs_reg_access(struct iio_dev *indio_dev,  in stm32_adc_debugfs_reg_access()  argument
1416 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_debugfs_reg_access()
1417 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_debugfs_reg_access()
1473 	struct iio_dev *indio_dev = data;  in stm32_adc_dma_buffer_done()  local
1474 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_dma_buffer_done()
1486 	dev_dbg(&indio_dev->dev, "%s bufi=%d\n", __func__, adc->bufi);  in stm32_adc_dma_buffer_done()
1488 	while (residue >= indio_dev->scan_bytes) {  in stm32_adc_dma_buffer_done()
1491 		iio_push_to_buffers(indio_dev, buffer);  in stm32_adc_dma_buffer_done()
1493 		residue -= indio_dev->scan_bytes;  in stm32_adc_dma_buffer_done()
1494 		adc->bufi += indio_dev->scan_bytes;  in stm32_adc_dma_buffer_done()
1500 static int stm32_adc_dma_start(struct iio_dev *indio_dev)  in stm32_adc_dma_start()  argument
1502 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_dma_start()
1510 	dev_dbg(&indio_dev->dev, "%s size=%d watermark=%d\n", __func__,  in stm32_adc_dma_start()
1523 	desc->callback_param = indio_dev;  in stm32_adc_dma_start()
1538 static int stm32_adc_buffer_postenable(struct iio_dev *indio_dev)  in stm32_adc_buffer_postenable()  argument
1540 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_buffer_postenable()
1541 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_buffer_postenable()
1550 	ret = stm32_adc_set_trig(indio_dev, indio_dev->trig);  in stm32_adc_buffer_postenable()
1552 		dev_err(&indio_dev->dev, "Can't set trigger\n");  in stm32_adc_buffer_postenable()
1556 	ret = stm32_adc_dma_start(indio_dev);  in stm32_adc_buffer_postenable()
1558 		dev_err(&indio_dev->dev, "Can't start dma\n");  in stm32_adc_buffer_postenable()
1570 	adc->cfg->start_conv(indio_dev, !!adc->dma_chan);  in stm32_adc_buffer_postenable()
1575 	stm32_adc_set_trig(indio_dev, NULL);  in stm32_adc_buffer_postenable()
1583 static int stm32_adc_buffer_predisable(struct iio_dev *indio_dev)  in stm32_adc_buffer_predisable()  argument
1585 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_buffer_predisable()
1586 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_buffer_predisable()
1588 	adc->cfg->stop_conv(indio_dev);  in stm32_adc_buffer_predisable()
1597 	if (stm32_adc_set_trig(indio_dev, NULL))  in stm32_adc_buffer_predisable()
1598 		dev_err(&indio_dev->dev, "Can't clear trigger\n");  in stm32_adc_buffer_predisable()
1614 	struct iio_dev *indio_dev = pf->indio_dev;  in stm32_adc_trigger_handler()  local
1615 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_trigger_handler()
1617 	dev_dbg(&indio_dev->dev, "%s bufi=%d\n", __func__, adc->bufi);  in stm32_adc_trigger_handler()
1622 		iio_push_to_buffers_with_timestamp(indio_dev, adc->buffer,  in stm32_adc_trigger_handler()
1627 		while (residue >= indio_dev->scan_bytes) {  in stm32_adc_trigger_handler()
1630 			iio_push_to_buffers_with_timestamp(indio_dev, buffer,  in stm32_adc_trigger_handler()
1632 			residue -= indio_dev->scan_bytes;  in stm32_adc_trigger_handler()
1633 			adc->bufi += indio_dev->scan_bytes;  in stm32_adc_trigger_handler()
1639 	iio_trigger_notify_done(indio_dev->trig);  in stm32_adc_trigger_handler()
1659 static int stm32_adc_of_get_resolution(struct iio_dev *indio_dev)  in stm32_adc_of_get_resolution()  argument
1661 	struct device_node *node = indio_dev->dev.of_node;  in stm32_adc_of_get_resolution()
1662 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_of_get_resolution()
1673 		dev_err(&indio_dev->dev, "Bad resolution: %u bits\n", res);  in stm32_adc_of_get_resolution()
1677 	dev_dbg(&indio_dev->dev, "Using %u bits resolution\n", res);  in stm32_adc_of_get_resolution()
1701 static void stm32_adc_chan_init_one(struct iio_dev *indio_dev,  in stm32_adc_chan_init_one()  argument
1705 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_chan_init_one()
1738 static int stm32_adc_chan_of_init(struct iio_dev *indio_dev)  in stm32_adc_chan_of_init()  argument
1740 	struct device_node *node = indio_dev->dev.of_node;  in stm32_adc_chan_of_init()
1741 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_chan_of_init()
1752 		dev_err(&indio_dev->dev, "Bad st,adc-channels?\n");  in stm32_adc_chan_of_init()
1761 		dev_err(&indio_dev->dev, "Bad st,adc-diff-channels?\n");  in stm32_adc_chan_of_init()
1775 		dev_err(&indio_dev->dev, "No channels configured\n");  in stm32_adc_chan_of_init()
1782 		dev_err(&indio_dev->dev, "Invalid st,min-sample-time-nsecs\n");  in stm32_adc_chan_of_init()
1786 	channels = devm_kcalloc(&indio_dev->dev, num_channels,  in stm32_adc_chan_of_init()
1793 			dev_err(&indio_dev->dev, "Invalid channel %d\n", val);  in stm32_adc_chan_of_init()
1800 				dev_err(&indio_dev->dev,  in stm32_adc_chan_of_init()
1805 		stm32_adc_chan_init_one(indio_dev, &channels[scan_index], val,  in stm32_adc_chan_of_init()
1813 			dev_err(&indio_dev->dev, "Invalid channel in%d-in%d\n",  in stm32_adc_chan_of_init()
1817 		stm32_adc_chan_init_one(indio_dev, &channels[scan_index],  in stm32_adc_chan_of_init()
1836 	indio_dev->num_channels = scan_index;  in stm32_adc_chan_of_init()
1837 	indio_dev->channels = channels;  in stm32_adc_chan_of_init()
1842 static int stm32_adc_dma_request(struct device *dev, struct iio_dev *indio_dev)  in stm32_adc_dma_request()  argument
1844 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_dma_request()
1891 	struct iio_dev *indio_dev;  in stm32_adc_probe()  local
1900 	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*adc));  in stm32_adc_probe()
1901 	if (!indio_dev)  in stm32_adc_probe()
1904 	adc = iio_priv(indio_dev);  in stm32_adc_probe()
1911 	indio_dev->name = dev_name(&pdev->dev);  in stm32_adc_probe()
1912 	indio_dev->dev.of_node = pdev->dev.of_node;  in stm32_adc_probe()
1913 	indio_dev->info = &stm32_adc_iio_info;  in stm32_adc_probe()
1914 	indio_dev->modes = INDIO_DIRECT_MODE | INDIO_HARDWARE_TRIGGERED;  in stm32_adc_probe()
1916 	platform_set_drvdata(pdev, indio_dev);  in stm32_adc_probe()
1930 					0, pdev->name, indio_dev);  in stm32_adc_probe()
1947 	ret = stm32_adc_of_get_resolution(indio_dev);  in stm32_adc_probe()
1951 	ret = stm32_adc_chan_of_init(indio_dev);  in stm32_adc_probe()
1955 	ret = stm32_adc_dma_request(dev, indio_dev);  in stm32_adc_probe()
1962 	ret = iio_triggered_buffer_setup(indio_dev,  in stm32_adc_probe()
1981 	ret = iio_device_register(indio_dev);  in stm32_adc_probe()
1999 	iio_triggered_buffer_cleanup(indio_dev);  in stm32_adc_probe()
2014 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);  in stm32_adc_remove()  local
2015 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_remove()
2018 	iio_device_unregister(indio_dev);  in stm32_adc_remove()
2023 	iio_triggered_buffer_cleanup(indio_dev);  in stm32_adc_remove()
2037 	struct iio_dev *indio_dev = dev_get_drvdata(dev);  in stm32_adc_suspend()  local
2039 	if (iio_buffer_enabled(indio_dev))  in stm32_adc_suspend()
2040 		stm32_adc_buffer_predisable(indio_dev);  in stm32_adc_suspend()
2047 	struct iio_dev *indio_dev = dev_get_drvdata(dev);  in stm32_adc_resume()  local
2054 	if (!iio_buffer_enabled(indio_dev))  in stm32_adc_resume()
2057 	ret = stm32_adc_update_scan_mode(indio_dev,  in stm32_adc_resume()
2058 					 indio_dev->active_scan_mask);  in stm32_adc_resume()
2062 	return stm32_adc_buffer_postenable(indio_dev);  in stm32_adc_resume()