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()
983 	stm32h7_adc_disable(indio_dev);  in stm32h7_adc_unprepare()
998 static int stm32_adc_conf_scan_seq(struct iio_dev *indio_dev,  in stm32_adc_conf_scan_seq()  argument
1001 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_conf_scan_seq()
1011 	for_each_set_bit(bit, scan_mask, indio_dev->masklength) {  in stm32_adc_conf_scan_seq()
1012 		chan = indio_dev->channels + bit;  in stm32_adc_conf_scan_seq()
1021 		dev_dbg(&indio_dev->dev, "%s chan %d to SQ%d\n",  in stm32_adc_conf_scan_seq()
1049 static int stm32_adc_get_trig_extsel(struct iio_dev *indio_dev,  in stm32_adc_get_trig_extsel()  argument
1052 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_get_trig_extsel()
1080 static int stm32_adc_set_trig(struct iio_dev *indio_dev,  in stm32_adc_set_trig()  argument
1083 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_set_trig()
1089 		ret = stm32_adc_get_trig_extsel(indio_dev, trig);  in stm32_adc_set_trig()
1109 static int stm32_adc_set_trig_pol(struct iio_dev *indio_dev,  in stm32_adc_set_trig_pol()  argument
1113 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_set_trig_pol()
1120 static int stm32_adc_get_trig_pol(struct iio_dev *indio_dev,  in stm32_adc_get_trig_pol()  argument
1123 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_get_trig_pol()
1151 static int stm32_adc_single_conv(struct iio_dev *indio_dev,  in stm32_adc_single_conv()  argument
1155 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_single_conv()
1156 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_single_conv()
1190 	adc->cfg->start_conv(indio_dev, false);  in stm32_adc_single_conv()
1203 	adc->cfg->stop_conv(indio_dev);  in stm32_adc_single_conv()
1213 static int stm32_adc_read_raw(struct iio_dev *indio_dev,  in stm32_adc_read_raw()  argument
1217 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_read_raw()
1222 		ret = iio_device_claim_direct_mode(indio_dev);  in stm32_adc_read_raw()
1226 			ret = stm32_adc_single_conv(indio_dev, chan, val);  in stm32_adc_read_raw()
1229 		iio_device_release_direct_mode(indio_dev);  in stm32_adc_read_raw()
1255 static void stm32_adc_irq_clear(struct iio_dev *indio_dev, u32 msk)  in stm32_adc_irq_clear()  argument
1257 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_irq_clear()
1259 	adc->cfg->irq_clear(indio_dev, msk);  in stm32_adc_irq_clear()
1264 	struct iio_dev *indio_dev = data;  in stm32_adc_threaded_isr()  local
1265 	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()
1287 	struct iio_dev *indio_dev = data;  in stm32_adc_isr()  local
1288 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_isr()
1308 		if (iio_buffer_enabled(indio_dev)) {  in stm32_adc_isr()
1312 				iio_trigger_poll(indio_dev->trig);  in stm32_adc_isr()
1331 static int stm32_adc_validate_trigger(struct iio_dev *indio_dev,  in stm32_adc_validate_trigger()  argument
1334 	return stm32_adc_get_trig_extsel(indio_dev, trig) < 0 ? -EINVAL : 0;  in stm32_adc_validate_trigger()
1337 static int stm32_adc_set_watermark(struct iio_dev *indio_dev, unsigned int val)  in stm32_adc_set_watermark()  argument
1339 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_set_watermark()
1355 static int stm32_adc_update_scan_mode(struct iio_dev *indio_dev,  in stm32_adc_update_scan_mode()  argument
1358 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_update_scan_mode()
1359 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_update_scan_mode()
1368 	adc->num_conv = bitmap_weight(scan_mask, indio_dev->masklength);  in stm32_adc_update_scan_mode()
1370 	ret = stm32_adc_conf_scan_seq(indio_dev, scan_mask);  in stm32_adc_update_scan_mode()
1377 static int stm32_adc_of_xlate(struct iio_dev *indio_dev,  in stm32_adc_of_xlate()  argument
1382 	for (i = 0; i < indio_dev->num_channels; i++)  in stm32_adc_of_xlate()
1383 		if (indio_dev->channels[i].channel == iiospec->args[0])  in stm32_adc_of_xlate()
1403 static int stm32_adc_debugfs_reg_access(struct iio_dev *indio_dev,  in stm32_adc_debugfs_reg_access()  argument
1407 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_debugfs_reg_access()
1408 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_debugfs_reg_access()
1464 	struct iio_dev *indio_dev = data;  in stm32_adc_dma_buffer_done()  local
1465 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_dma_buffer_done()
1477 	dev_dbg(&indio_dev->dev, "%s bufi=%d\n", __func__, adc->bufi);  in stm32_adc_dma_buffer_done()
1479 	while (residue >= indio_dev->scan_bytes) {  in stm32_adc_dma_buffer_done()
1482 		iio_push_to_buffers(indio_dev, buffer);  in stm32_adc_dma_buffer_done()
1484 		residue -= indio_dev->scan_bytes;  in stm32_adc_dma_buffer_done()
1485 		adc->bufi += indio_dev->scan_bytes;  in stm32_adc_dma_buffer_done()
1491 static int stm32_adc_dma_start(struct iio_dev *indio_dev)  in stm32_adc_dma_start()  argument
1493 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_dma_start()
1501 	dev_dbg(&indio_dev->dev, "%s size=%d watermark=%d\n", __func__,  in stm32_adc_dma_start()
1514 	desc->callback_param = indio_dev;  in stm32_adc_dma_start()
1529 static int stm32_adc_buffer_postenable(struct iio_dev *indio_dev)  in stm32_adc_buffer_postenable()  argument
1531 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_buffer_postenable()
1532 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_buffer_postenable()
1541 	ret = stm32_adc_set_trig(indio_dev, indio_dev->trig);  in stm32_adc_buffer_postenable()
1543 		dev_err(&indio_dev->dev, "Can't set trigger\n");  in stm32_adc_buffer_postenable()
1547 	ret = stm32_adc_dma_start(indio_dev);  in stm32_adc_buffer_postenable()
1549 		dev_err(&indio_dev->dev, "Can't start dma\n");  in stm32_adc_buffer_postenable()
1561 	adc->cfg->start_conv(indio_dev, !!adc->dma_chan);  in stm32_adc_buffer_postenable()
1566 	stm32_adc_set_trig(indio_dev, NULL);  in stm32_adc_buffer_postenable()
1574 static int stm32_adc_buffer_predisable(struct iio_dev *indio_dev)  in stm32_adc_buffer_predisable()  argument
1576 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_buffer_predisable()
1577 	struct device *dev = indio_dev->dev.parent;  in stm32_adc_buffer_predisable()
1579 	adc->cfg->stop_conv(indio_dev);  in stm32_adc_buffer_predisable()
1588 	if (stm32_adc_set_trig(indio_dev, NULL))  in stm32_adc_buffer_predisable()
1589 		dev_err(&indio_dev->dev, "Can't clear trigger\n");  in stm32_adc_buffer_predisable()
1605 	struct iio_dev *indio_dev = pf->indio_dev;  in stm32_adc_trigger_handler()  local
1606 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_trigger_handler()
1608 	dev_dbg(&indio_dev->dev, "%s bufi=%d\n", __func__, adc->bufi);  in stm32_adc_trigger_handler()
1613 		iio_push_to_buffers_with_timestamp(indio_dev, adc->buffer,  in stm32_adc_trigger_handler()
1618 		while (residue >= indio_dev->scan_bytes) {  in stm32_adc_trigger_handler()
1621 			iio_push_to_buffers_with_timestamp(indio_dev, buffer,  in stm32_adc_trigger_handler()
1623 			residue -= indio_dev->scan_bytes;  in stm32_adc_trigger_handler()
1624 			adc->bufi += indio_dev->scan_bytes;  in stm32_adc_trigger_handler()
1630 	iio_trigger_notify_done(indio_dev->trig);  in stm32_adc_trigger_handler()
1650 static int stm32_adc_of_get_resolution(struct iio_dev *indio_dev)  in stm32_adc_of_get_resolution()  argument
1652 	struct device_node *node = indio_dev->dev.of_node;  in stm32_adc_of_get_resolution()
1653 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_of_get_resolution()
1664 		dev_err(&indio_dev->dev, "Bad resolution: %u bits\n", res);  in stm32_adc_of_get_resolution()
1668 	dev_dbg(&indio_dev->dev, "Using %u bits resolution\n", res);  in stm32_adc_of_get_resolution()
1692 static void stm32_adc_chan_init_one(struct iio_dev *indio_dev,  in stm32_adc_chan_init_one()  argument
1696 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_chan_init_one()
1729 static int stm32_adc_chan_of_init(struct iio_dev *indio_dev)  in stm32_adc_chan_of_init()  argument
1731 	struct device_node *node = indio_dev->dev.of_node;  in stm32_adc_chan_of_init()
1732 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_chan_of_init()
1743 		dev_err(&indio_dev->dev, "Bad st,adc-channels?\n");  in stm32_adc_chan_of_init()
1752 		dev_err(&indio_dev->dev, "Bad st,adc-diff-channels?\n");  in stm32_adc_chan_of_init()
1766 		dev_err(&indio_dev->dev, "No channels configured\n");  in stm32_adc_chan_of_init()
1773 		dev_err(&indio_dev->dev, "Invalid st,min-sample-time-nsecs\n");  in stm32_adc_chan_of_init()
1777 	channels = devm_kcalloc(&indio_dev->dev, num_channels,  in stm32_adc_chan_of_init()
1784 			dev_err(&indio_dev->dev, "Invalid channel %d\n", val);  in stm32_adc_chan_of_init()
1791 				dev_err(&indio_dev->dev,  in stm32_adc_chan_of_init()
1796 		stm32_adc_chan_init_one(indio_dev, &channels[scan_index], val,  in stm32_adc_chan_of_init()
1804 			dev_err(&indio_dev->dev, "Invalid channel in%d-in%d\n",  in stm32_adc_chan_of_init()
1808 		stm32_adc_chan_init_one(indio_dev, &channels[scan_index],  in stm32_adc_chan_of_init()
1827 	indio_dev->num_channels = scan_index;  in stm32_adc_chan_of_init()
1828 	indio_dev->channels = channels;  in stm32_adc_chan_of_init()
1833 static int stm32_adc_dma_request(struct device *dev, struct iio_dev *indio_dev)  in stm32_adc_dma_request()  argument
1835 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_dma_request()
1882 	struct iio_dev *indio_dev;  in stm32_adc_probe()  local
1891 	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*adc));  in stm32_adc_probe()
1892 	if (!indio_dev)  in stm32_adc_probe()
1895 	adc = iio_priv(indio_dev);  in stm32_adc_probe()
1902 	indio_dev->name = dev_name(&pdev->dev);  in stm32_adc_probe()
1903 	indio_dev->dev.of_node = pdev->dev.of_node;  in stm32_adc_probe()
1904 	indio_dev->info = &stm32_adc_iio_info;  in stm32_adc_probe()
1905 	indio_dev->modes = INDIO_DIRECT_MODE | INDIO_HARDWARE_TRIGGERED;  in stm32_adc_probe()
1907 	platform_set_drvdata(pdev, indio_dev);  in stm32_adc_probe()
1921 					0, pdev->name, indio_dev);  in stm32_adc_probe()
1938 	ret = stm32_adc_of_get_resolution(indio_dev);  in stm32_adc_probe()
1942 	ret = stm32_adc_chan_of_init(indio_dev);  in stm32_adc_probe()
1946 	ret = stm32_adc_dma_request(dev, indio_dev);  in stm32_adc_probe()
1953 	ret = iio_triggered_buffer_setup(indio_dev,  in stm32_adc_probe()
1972 	ret = iio_device_register(indio_dev);  in stm32_adc_probe()
1990 	iio_triggered_buffer_cleanup(indio_dev);  in stm32_adc_probe()
2005 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);  in stm32_adc_remove()  local
2006 	struct stm32_adc *adc = iio_priv(indio_dev);  in stm32_adc_remove()
2009 	iio_device_unregister(indio_dev);  in stm32_adc_remove()
2014 	iio_triggered_buffer_cleanup(indio_dev);  in stm32_adc_remove()
2028 	struct iio_dev *indio_dev = dev_get_drvdata(dev);  in stm32_adc_suspend()  local
2030 	if (iio_buffer_enabled(indio_dev))  in stm32_adc_suspend()
2031 		stm32_adc_buffer_predisable(indio_dev);  in stm32_adc_suspend()
2038 	struct iio_dev *indio_dev = dev_get_drvdata(dev);  in stm32_adc_resume()  local
2045 	if (!iio_buffer_enabled(indio_dev))  in stm32_adc_resume()
2048 	ret = stm32_adc_update_scan_mode(indio_dev,  in stm32_adc_resume()
2049 					 indio_dev->active_scan_mask);  in stm32_adc_resume()
2053 	return stm32_adc_buffer_postenable(indio_dev);  in stm32_adc_resume()