1 // SPDX-License-Identifier: GPL-2.0-or-later
23 /* Channels */
88 	complete(&gpadc->complete);  in da9150_gpadc_irq()
98 	mutex_lock(&gpadc->lock);  in da9150_gpadc_read_adc()
101 	da9150_reg_write(gpadc->da9150, DA9150_GPADC_MAN,  in da9150_gpadc_read_adc()
105 	/* Consume left-over completion from a previous timeout */  in da9150_gpadc_read_adc()
106 	try_wait_for_completion(&gpadc->complete);  in da9150_gpadc_read_adc()
109 	wait_for_completion_timeout(&gpadc->complete, msecs_to_jiffies(5));  in da9150_gpadc_read_adc()
112 	da9150_bulk_read(gpadc->da9150, DA9150_GPADC_RES_A, 2, result_regs);  in da9150_gpadc_read_adc()
114 	mutex_unlock(&gpadc->lock);  in da9150_gpadc_read_adc()
118 		dev_err(gpadc->dev, "Timeout on channel %d of GPADC\n",  in da9150_gpadc_read_adc()
120 		return -ETIMEDOUT;  in da9150_gpadc_read_adc()
123 	/* LSBs - 2 bits */  in da9150_gpadc_read_adc()
126 	/* MSBs - 8 bits */  in da9150_gpadc_read_adc()
134 	/* Convert to mV */  in da9150_gpadc_gpio_6v_voltage_now()
140 	/* Convert to mA */  in da9150_gpadc_ibus_current_avg()
146 	/* Convert to mV */  in da9150_gpadc_vbus_21v_voltage_now()
152 	/* Convert to mV */  in da9150_gpadc_vsys_6v_voltage_now()
182 		/* No processing for other channels so return raw value */  in da9150_gpadc_read_processed()
203 		return -EINVAL;  in da9150_gpadc_read_scale()
215 		*val = -144;  in da9150_gpadc_read_offset()
218 		return -EINVAL;  in da9150_gpadc_read_offset()
228 	if ((chan->channel < DA9150_GPADC_CHAN_GPIOA) ||  in da9150_gpadc_read_raw()
229 	    (chan->channel > DA9150_GPADC_CHAN_TJUNC_OVP))  in da9150_gpadc_read_raw()
230 		return -EINVAL;  in da9150_gpadc_read_raw()
235 		return da9150_gpadc_read_processed(gpadc, chan->channel,  in da9150_gpadc_read_raw()
236 						   chan->address, val);  in da9150_gpadc_read_raw()
238 		return da9150_gpadc_read_scale(chan->channel, val, val2);  in da9150_gpadc_read_raw()
240 		return da9150_gpadc_read_offset(chan->channel, val);  in da9150_gpadc_read_raw()
242 		return -EINVAL;  in da9150_gpadc_read_raw()
276 /* Supported channels */
293 /* Default maps used by da9150-charger */
295 	IIO_MAP("IBUS", "da9150-charger", "CHAN_IBUS"),
296 	IIO_MAP("VBUS", "da9150-charger", "CHAN_VBUS"),
297 	IIO_MAP("TJUNC_CORE", "da9150-charger", "CHAN_TJUNC"),
298 	IIO_MAP("VBAT", "da9150-charger", "CHAN_VBAT"),
304 	struct device *dev = &pdev->dev;  in da9150_gpadc_probe()
305 	struct da9150 *da9150 = dev_get_drvdata(dev->parent);  in da9150_gpadc_probe()
312 		dev_err(&pdev->dev, "Failed to allocate IIO device\n");  in da9150_gpadc_probe()
313 		return -ENOMEM;  in da9150_gpadc_probe()
317 	gpadc->da9150 = da9150;  in da9150_gpadc_probe()
318 	gpadc->dev = dev;  in da9150_gpadc_probe()
319 	mutex_init(&gpadc->lock);  in da9150_gpadc_probe()
320 	init_completion(&gpadc->complete);  in da9150_gpadc_probe()
333 	ret = devm_iio_map_array_register(&pdev->dev, indio_dev, da9150_gpadc_default_maps);  in da9150_gpadc_probe()
339 	indio_dev->name = dev_name(dev);  in da9150_gpadc_probe()
340 	indio_dev->info = &da9150_gpadc_info;  in da9150_gpadc_probe()
341 	indio_dev->modes = INDIO_DIRECT_MODE;  in da9150_gpadc_probe()
342 	indio_dev->channels = da9150_gpadc_channels;  in da9150_gpadc_probe()
343 	indio_dev->num_channels = ARRAY_SIZE(da9150_gpadc_channels);  in da9150_gpadc_probe()
345 	return devm_iio_device_register(&pdev->dev, indio_dev);  in da9150_gpadc_probe()
350 		.name = "da9150-gpadc",