1 // SPDX-License-Identifier: GPL-2.0-only
35  * struct cm3605 - CM3605 state
37  * @vdd: regulator controlling VDD
46 	struct regulator *vdd;  member
61 				  IIO_EV_TYPE_THRESH, cm3605->dir);  in cm3605_prox_irq()
65 	if (cm3605->dir == IIO_EV_DIR_RISING)  in cm3605_prox_irq()
66 		cm3605->dir = IIO_EV_DIR_FALLING;  in cm3605_prox_irq()
68 		cm3605->dir = IIO_EV_DIR_RISING;  in cm3605_prox_irq()
78 	ret = iio_read_channel_processed(cm3605->aout, &res);  in cm3605_get_lux()
82 	dev_dbg(cm3605->dev, "read %d mV from ADC\n", res);  in cm3605_get_lux()
93 		dev_err(cm3605->dev, "device out of range\n");  in cm3605_get_lux()
96 	lux = res - 30;  in cm3605_get_lux()
99 	lux *= cm3605->als_max;  in cm3605_get_lux()
114 		switch (chan->type) {  in cm3605_read_raw()
122 			return -EINVAL;  in cm3605_read_raw()
125 		return -EINVAL;  in cm3605_read_raw()
158 	struct device *dev = &pdev->dev;  in cm3605_probe()
159 	struct device_node *np = dev->of_node;  in cm3605_probe()
166 		return -ENOMEM;  in cm3605_probe()
170 	cm3605->dev = dev;  in cm3605_probe()
171 	cm3605->dir = IIO_EV_DIR_FALLING;  in cm3605_probe()
173 	ret = of_property_read_u32(np, "capella,aset-resistance-ohms", &rset);  in cm3605_probe()
180 		cm3605->als_max = 650;  in cm3605_probe()
183 		cm3605->als_max = 300;  in cm3605_probe()
186 		cm3605->als_max = 100;  in cm3605_probe()
189 		cm3605->als_max = 50;  in cm3605_probe()
192 		dev_info(dev, "non-standard resistance\n");  in cm3605_probe()
193 		return -EINVAL;  in cm3605_probe()
196 	cm3605->aout = devm_iio_channel_get(dev, "aout");  in cm3605_probe()
197 	if (IS_ERR(cm3605->aout)) {  in cm3605_probe()
198 		if (PTR_ERR(cm3605->aout) == -ENODEV) {  in cm3605_probe()
200 			return -EPROBE_DEFER;  in cm3605_probe()
203 		return PTR_ERR(cm3605->aout);  in cm3605_probe()
205 	ret = iio_get_channel_type(cm3605->aout, &ch_type);  in cm3605_probe()
210 		return -EINVAL;  in cm3605_probe()
213 	cm3605->vdd = devm_regulator_get(dev, "vdd");  in cm3605_probe()
214 	if (IS_ERR(cm3605->vdd)) {  in cm3605_probe()
215 		dev_err(dev, "failed to get VDD regulator\n");  in cm3605_probe()
216 		return PTR_ERR(cm3605->vdd);  in cm3605_probe()
218 	ret = regulator_enable(cm3605->vdd);  in cm3605_probe()
220 		dev_err(dev, "failed to enable VDD regulator\n");  in cm3605_probe()
224 	cm3605->aset = devm_gpiod_get(dev, "aset", GPIOD_OUT_HIGH);  in cm3605_probe()
225 	if (IS_ERR(cm3605->aset)) {  in cm3605_probe()
227 		ret = PTR_ERR(cm3605->aset);  in cm3605_probe()
239 	led_trigger_register_simple("cm3605", &cm3605->led);  in cm3605_probe()
240 	led_trigger_event(cm3605->led, LED_FULL);  in cm3605_probe()
242 	indio_dev->info = &cm3605_info;  in cm3605_probe()
243 	indio_dev->name = "cm3605";  in cm3605_probe()
244 	indio_dev->channels = cm3605_channels;  in cm3605_probe()
245 	indio_dev->num_channels = ARRAY_SIZE(cm3605_channels);  in cm3605_probe()
246 	indio_dev->modes = INDIO_DIRECT_MODE;  in cm3605_probe()
252 		 cm3605->als_max);  in cm3605_probe()
257 	led_trigger_event(cm3605->led, LED_OFF);  in cm3605_probe()
258 	led_trigger_unregister_simple(cm3605->led);  in cm3605_probe()
260 	gpiod_set_value_cansleep(cm3605->aset, 0);  in cm3605_probe()
262 	regulator_disable(cm3605->vdd);  in cm3605_probe()
271 	led_trigger_event(cm3605->led, LED_OFF);  in cm3605_remove()
272 	led_trigger_unregister_simple(cm3605->led);  in cm3605_remove()
273 	gpiod_set_value_cansleep(cm3605->aset, 0);  in cm3605_remove()
275 	regulator_disable(cm3605->vdd);  in cm3605_remove()
285 	led_trigger_event(cm3605->led, LED_OFF);  in cm3605_pm_suspend()
286 	regulator_disable(cm3605->vdd);  in cm3605_pm_suspend()
297 	ret = regulator_enable(cm3605->vdd);  in cm3605_pm_resume()
300 	led_trigger_event(cm3605->led, LED_FULL);  in cm3605_pm_resume()