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()
556 	struct iio_dev *indio_dev = dev_get_drvdata(dev);  in stm32_adc_hw_start()  local
557 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_hw_start()
567 		ret = adc->cfg->prepare(indio_dev);  in stm32_adc_hw_start()
590 static void stm32f4_adc_start_conv(struct iio_dev *indio_dev, bool dma)  in stm32f4_adc_start_conv()  argument
592 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32f4_adc_start_conv()
610 static void stm32f4_adc_stop_conv(struct iio_dev *indio_dev)  in stm32f4_adc_stop_conv()  argument
612 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32f4_adc_stop_conv()
622 static void stm32f4_adc_irq_clear(struct iio_dev *indio_dev, u32 msk)  in stm32f4_adc_irq_clear()  argument
624 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32f4_adc_irq_clear()
629 static void stm32h7_adc_start_conv(struct iio_dev *indio_dev, bool dma)  in stm32h7_adc_start_conv()  argument
631 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_start_conv()
650 static void stm32h7_adc_stop_conv(struct iio_dev *indio_dev)  in stm32h7_adc_stop_conv()  argument
652 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_stop_conv()
662 		dev_warn(&indio_dev->dev, "stop failed\n");  in stm32h7_adc_stop_conv()
667 static void stm32h7_adc_irq_clear(struct iio_dev *indio_dev, u32 msk)  in stm32h7_adc_irq_clear()  argument
669 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_irq_clear()
674 static int stm32h7_adc_exit_pwr_down(struct iio_dev *indio_dev)  in stm32h7_adc_exit_pwr_down()  argument
676 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_exit_pwr_down()
698 		dev_err(&indio_dev->dev, "Failed to exit power down\n");  in stm32h7_adc_exit_pwr_down()
712 static int stm32h7_adc_enable(struct iio_dev *indio_dev)  in stm32h7_adc_enable()  argument
714 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_enable()
726 		dev_err(&indio_dev->dev, "Failed to enable ADC\n");  in stm32h7_adc_enable()
735 static void stm32h7_adc_disable(struct iio_dev *indio_dev)  in stm32h7_adc_disable()  argument
737 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_disable()
747 		dev_warn(&indio_dev->dev, "Failed to disable\n");  in stm32h7_adc_disable()
755 static int stm32h7_adc_read_selfcalib(struct iio_dev *indio_dev)  in stm32h7_adc_read_selfcalib()  argument
757 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_read_selfcalib()
772 			dev_err(&indio_dev->dev, "Failed to read calfact\n");  in stm32h7_adc_read_selfcalib()
799 static int stm32h7_adc_restore_selfcalib(struct iio_dev *indio_dev)  in stm32h7_adc_restore_selfcalib()  argument
801 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_restore_selfcalib()
823 			dev_err(&indio_dev->dev, "Failed to write calfact\n");  in stm32h7_adc_restore_selfcalib()
839 			dev_err(&indio_dev->dev, "Failed to read calfact\n");  in stm32h7_adc_restore_selfcalib()
844 			dev_err(&indio_dev->dev, "calfact not consistent\n");  in stm32h7_adc_restore_selfcalib()
872 static int stm32h7_adc_selfcalib(struct iio_dev *indio_dev)  in stm32h7_adc_selfcalib()  argument
874 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_selfcalib()
895 		dev_err(&indio_dev->dev, "calibration failed\n");  in stm32h7_adc_selfcalib()
912 		dev_err(&indio_dev->dev, "calibration failed\n");  in stm32h7_adc_selfcalib()
934 static int stm32h7_adc_prepare(struct iio_dev *indio_dev)  in stm32h7_adc_prepare()  argument
936 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_prepare()
939 	ret = stm32h7_adc_exit_pwr_down(indio_dev);  in stm32h7_adc_prepare()
943 	ret = stm32h7_adc_selfcalib(indio_dev);  in stm32h7_adc_prepare()
950 	ret = stm32h7_adc_enable(indio_dev);  in stm32h7_adc_prepare()
956 		ret = stm32h7_adc_restore_selfcalib(indio_dev);  in stm32h7_adc_prepare()
958 		ret = stm32h7_adc_read_selfcalib(indio_dev);  in stm32h7_adc_prepare()
967 	stm32h7_adc_disable(indio_dev);  in stm32h7_adc_prepare()
974 static void stm32h7_adc_unprepare(struct iio_dev *indio_dev)  in stm32h7_adc_unprepare()  argument
976 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32h7_adc_unprepare()
978 	stm32h7_adc_disable(indio_dev);  in stm32h7_adc_unprepare()
993 static int stm32_adc_conf_scan_seq(struct iio_dev *indio_dev,  in stm32_adc_conf_scan_seq()  argument
996 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_conf_scan_seq()
1006 	for_each_set_bit(bit, scan_mask, indio_dev->masklength) {  in stm32_adc_conf_scan_seq()
1007 		chan = indio_dev->channels + bit;  in stm32_adc_conf_scan_seq()
1016 		dev_dbg(&indio_dev->dev, "%s chan %d to SQ%d\n",  in stm32_adc_conf_scan_seq()
1044 static int stm32_adc_get_trig_extsel(struct iio_dev *indio_dev,  in stm32_adc_get_trig_extsel()  argument
1047 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_get_trig_extsel()
1075 static int stm32_adc_set_trig(struct iio_dev *indio_dev,  in stm32_adc_set_trig()  argument
1078 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_set_trig()
1084 		ret = stm32_adc_get_trig_extsel(indio_dev, trig);  in stm32_adc_set_trig()
1104 static int stm32_adc_set_trig_pol(struct iio_dev *indio_dev,  in stm32_adc_set_trig_pol()  argument
1108 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_set_trig_pol()
1115 static int stm32_adc_get_trig_pol(struct iio_dev *indio_dev,  in stm32_adc_get_trig_pol()  argument
1118 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_get_trig_pol()
1146 static int stm32_adc_single_conv(struct iio_dev *indio_dev,  in stm32_adc_single_conv()  argument
1150 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_single_conv()
1151 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_single_conv()
1183 	adc->cfg->start_conv(indio_dev, false);  in stm32_adc_single_conv()
1196 	adc->cfg->stop_conv(indio_dev);  in stm32_adc_single_conv()
1206 static int stm32_adc_read_raw(struct iio_dev *indio_dev,  in stm32_adc_read_raw()  argument
1210 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_read_raw()
1215 		ret = iio_device_claim_direct_mode(indio_dev);  in stm32_adc_read_raw()
1219 			ret = stm32_adc_single_conv(indio_dev, chan, val);  in stm32_adc_read_raw()
1222 		iio_device_release_direct_mode(indio_dev);  in stm32_adc_read_raw()
1248 static void stm32_adc_irq_clear(struct iio_dev *indio_dev, u32 msk)  in stm32_adc_irq_clear()  argument
1250 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_irq_clear()
1252 	adc->cfg->irq_clear(indio_dev, msk);  in stm32_adc_irq_clear()
1257 	struct iio_dev *indio_dev = data;  in stm32_adc_threaded_isr()  local
1258 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_threaded_isr()
1270 		adc->cfg->stop_conv(indio_dev);  in stm32_adc_threaded_isr()
1271 		stm32_adc_irq_clear(indio_dev, regs->isr_ovr.mask);  in stm32_adc_threaded_isr()
1272 		dev_err(&indio_dev->dev, "Overrun, stopping: restart needed\n");  in stm32_adc_threaded_isr()
1277 		dev_err_ratelimited(&indio_dev->dev,  in stm32_adc_threaded_isr()
1286 	struct iio_dev *indio_dev = data;  in stm32_adc_isr()  local
1287 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_isr()
1311 		if (iio_buffer_enabled(indio_dev)) {  in stm32_adc_isr()
1315 				iio_trigger_poll(indio_dev->trig);  in stm32_adc_isr()
1334 static int stm32_adc_validate_trigger(struct iio_dev *indio_dev,  in stm32_adc_validate_trigger()  argument
1337 	return stm32_adc_get_trig_extsel(indio_dev, trig) < 0 ? -EINVAL : 0;  in stm32_adc_validate_trigger()
1340 static int stm32_adc_set_watermark(struct iio_dev *indio_dev, unsigned int val)  in stm32_adc_set_watermark()  argument
1342 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_set_watermark()
1358 static int stm32_adc_update_scan_mode(struct iio_dev *indio_dev,  in stm32_adc_update_scan_mode()  argument
1361 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_update_scan_mode()
1362 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_update_scan_mode()
1369 	adc->num_conv = bitmap_weight(scan_mask, indio_dev->masklength);  in stm32_adc_update_scan_mode()
1371 	ret = stm32_adc_conf_scan_seq(indio_dev, scan_mask);  in stm32_adc_update_scan_mode()
1378 static int stm32_adc_of_xlate(struct iio_dev *indio_dev,  in stm32_adc_of_xlate()  argument
1383 	for (i = 0; i < indio_dev->num_channels; i++)  in stm32_adc_of_xlate()
1384 		if (indio_dev->channels[i].channel == iiospec->args[0])  in stm32_adc_of_xlate()
1404 static int stm32_adc_debugfs_reg_access(struct iio_dev *indio_dev,  in stm32_adc_debugfs_reg_access()  argument
1408 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_debugfs_reg_access()
1409 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_debugfs_reg_access()
1463 	struct iio_dev *indio_dev = data;  in stm32_adc_dma_buffer_done()  local
1464 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_dma_buffer_done()
1476 	dev_dbg(&indio_dev->dev, "%s bufi=%d\n", __func__, adc->bufi);  in stm32_adc_dma_buffer_done()
1478 	while (residue >= indio_dev->scan_bytes) {  in stm32_adc_dma_buffer_done()
1481 		iio_push_to_buffers(indio_dev, buffer);  in stm32_adc_dma_buffer_done()
1483 		residue -= indio_dev->scan_bytes;  in stm32_adc_dma_buffer_done()
1484 		adc->bufi += indio_dev->scan_bytes;  in stm32_adc_dma_buffer_done()
1490 static int stm32_adc_dma_start(struct iio_dev *indio_dev)  in stm32_adc_dma_start()  argument
1492 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_dma_start()
1500 	dev_dbg(&indio_dev->dev, "%s size=%d watermark=%d\n", __func__,  in stm32_adc_dma_start()
1513 	desc->callback_param = indio_dev;  in stm32_adc_dma_start()
1528 static int stm32_adc_buffer_postenable(struct iio_dev *indio_dev)  in stm32_adc_buffer_postenable()  argument
1530 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_buffer_postenable()
1531 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_buffer_postenable()
1538 	ret = stm32_adc_set_trig(indio_dev, indio_dev->trig);  in stm32_adc_buffer_postenable()
1540 		dev_err(&indio_dev->dev, "Can't set trigger\n");  in stm32_adc_buffer_postenable()
1544 	ret = stm32_adc_dma_start(indio_dev);  in stm32_adc_buffer_postenable()
1546 		dev_err(&indio_dev->dev, "Can't start dma\n");  in stm32_adc_buffer_postenable()
1558 	adc->cfg->start_conv(indio_dev, !!adc->dma_chan);  in stm32_adc_buffer_postenable()
1563 	stm32_adc_set_trig(indio_dev, NULL);  in stm32_adc_buffer_postenable()
1571 static int stm32_adc_buffer_predisable(struct iio_dev *indio_dev)  in stm32_adc_buffer_predisable()  argument
1573 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_buffer_predisable()
1574 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_buffer_predisable()
1576 	adc->cfg->stop_conv(indio_dev);  in stm32_adc_buffer_predisable()
1585 	if (stm32_adc_set_trig(indio_dev, NULL))  in stm32_adc_buffer_predisable()
1586 		dev_err(&indio_dev->dev, "Can't clear trigger\n");  in stm32_adc_buffer_predisable()
1602 	struct iio_dev *indio_dev = pf->indio_dev;  in stm32_adc_trigger_handler()  local
1603 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_trigger_handler()
1605 	dev_dbg(&indio_dev->dev, "%s bufi=%d\n", __func__, adc->bufi);  in stm32_adc_trigger_handler()
1609 	iio_push_to_buffers_with_timestamp(indio_dev, adc->buffer,  in stm32_adc_trigger_handler()
1611 	iio_trigger_notify_done(indio_dev->trig);  in stm32_adc_trigger_handler()
1630 static int stm32_adc_of_get_resolution(struct iio_dev *indio_dev)  in stm32_adc_of_get_resolution()  argument
1632 	struct device_node *node = indio_dev->dev.of_node;  in stm32_adc_of_get_resolution()
1633 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_of_get_resolution()
1644 		dev_err(&indio_dev->dev, "Bad resolution: %u bits\n", res);  in stm32_adc_of_get_resolution()
1648 	dev_dbg(&indio_dev->dev, "Using %u bits resolution\n", res);  in stm32_adc_of_get_resolution()
1672 static void stm32_adc_chan_init_one(struct iio_dev *indio_dev,  in stm32_adc_chan_init_one()  argument
1676 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_chan_init_one()
1709 static int stm32_adc_chan_of_init(struct iio_dev *indio_dev, bool timestamping)  in stm32_adc_chan_of_init()  argument
1711 	struct device_node *node = indio_dev->dev.of_node;  in stm32_adc_chan_of_init()
1712 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_chan_of_init()
1723 		dev_err(&indio_dev->dev, "Bad st,adc-channels?\n");  in stm32_adc_chan_of_init()
1732 		dev_err(&indio_dev->dev, "Bad st,adc-diff-channels?\n");  in stm32_adc_chan_of_init()
1746 		dev_err(&indio_dev->dev, "No channels configured\n");  in stm32_adc_chan_of_init()
1753 		dev_err(&indio_dev->dev, "Invalid st,min-sample-time-nsecs\n");  in stm32_adc_chan_of_init()
1760 	channels = devm_kcalloc(&indio_dev->dev, num_channels,  in stm32_adc_chan_of_init()
1767 			dev_err(&indio_dev->dev, "Invalid channel %d\n", val);  in stm32_adc_chan_of_init()
1774 				dev_err(&indio_dev->dev,  in stm32_adc_chan_of_init()
1779 		stm32_adc_chan_init_one(indio_dev, &channels[scan_index], val,  in stm32_adc_chan_of_init()
1787 			dev_err(&indio_dev->dev, "Invalid channel in%d-in%d\n",  in stm32_adc_chan_of_init()
1791 		stm32_adc_chan_init_one(indio_dev, &channels[scan_index],  in stm32_adc_chan_of_init()
1823 	indio_dev->num_channels = scan_index;  in stm32_adc_chan_of_init()
1824 	indio_dev->channels = channels;  in stm32_adc_chan_of_init()
1829 static int stm32_adc_dma_request(struct device *dev, struct iio_dev *indio_dev)  in stm32_adc_dma_request()  argument
1831 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_dma_request()
1878 	struct iio_dev *indio_dev;  in stm32_adc_probe()  local
1888 	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*adc));  in stm32_adc_probe()
1889 	if (!indio_dev)  in stm32_adc_probe()
1892 	adc = iio_priv(indio_dev);  in stm32_adc_probe()
1899 	indio_dev->name = dev_name(&pdev->dev);  in stm32_adc_probe()
1900 	indio_dev->dev.of_node = pdev->dev.of_node;  in stm32_adc_probe()
1901 	indio_dev->info = &stm32_adc_iio_info;  in stm32_adc_probe()
1902 	indio_dev->modes = INDIO_DIRECT_MODE | INDIO_HARDWARE_TRIGGERED;  in stm32_adc_probe()
1904 	platform_set_drvdata(pdev, indio_dev);  in stm32_adc_probe()
1918 					0, pdev->name, indio_dev);  in stm32_adc_probe()
1935 	ret = stm32_adc_of_get_resolution(indio_dev);  in stm32_adc_probe()
1939 	ret = stm32_adc_dma_request(dev, indio_dev);  in stm32_adc_probe()
1952 	ret = stm32_adc_chan_of_init(indio_dev, timestamping);  in stm32_adc_probe()
1956 	ret = iio_triggered_buffer_setup(indio_dev,  in stm32_adc_probe()
1975 	ret = iio_device_register(indio_dev);  in stm32_adc_probe()
1993 	iio_triggered_buffer_cleanup(indio_dev);  in stm32_adc_probe()
2008 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);  in stm32_adc_remove()  local
2009 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_remove()
2012 	iio_device_unregister(indio_dev);  in stm32_adc_remove()
2017 	iio_triggered_buffer_cleanup(indio_dev);  in stm32_adc_remove()
2031 	struct iio_dev *indio_dev = dev_get_drvdata(dev);  in stm32_adc_suspend()  local
2033 	if (iio_buffer_enabled(indio_dev))  in stm32_adc_suspend()
2034 		stm32_adc_buffer_predisable(indio_dev);  in stm32_adc_suspend()
2041 	struct iio_dev *indio_dev = dev_get_drvdata(dev);  in stm32_adc_resume()  local
2048 	if (!iio_buffer_enabled(indio_dev))  in stm32_adc_resume()
2051 	ret = stm32_adc_update_scan_mode(indio_dev,  in stm32_adc_resume()
2052 					 indio_dev->active_scan_mask);  in stm32_adc_resume()
2056 	return stm32_adc_buffer_postenable(indio_dev);  in stm32_adc_resume()