3  * CM3605 Ambient Light and Proximity Sensor
35  * struct cm3605 - CM3605 state
44 struct cm3605 {  struct
57 	struct cm3605 *cm3605 = iio_priv(indio_dev);  in cm3605_prox_irq()  argument
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()
73 static int cm3605_get_lux(struct cm3605 *cm3605)  in cm3605_get_lux()  argument
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()
99 	lux *= cm3605->als_max;  in cm3605_get_lux()
109 	struct cm3605 *cm3605 = iio_priv(indio_dev);  in cm3605_read_raw()  local
116 			ret = cm3605_get_lux(cm3605);  in cm3605_read_raw()
156 	struct cm3605 *cm3605;  in cm3605_probe()  local
164 	indio_dev = devm_iio_device_alloc(dev, sizeof(*cm3605));  in cm3605_probe()
169 	cm3605 = iio_priv(indio_dev);  in cm3605_probe()
170 	cm3605->dev = dev;  in cm3605_probe()
171 	cm3605->dir = IIO_EV_DIR_FALLING;  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()
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()
203 		return PTR_ERR(cm3605->aout);  in cm3605_probe()
205 	ret = iio_get_channel_type(cm3605->aout, &ch_type);  in cm3605_probe()
213 	cm3605->vdd = devm_regulator_get(dev, "vdd");  in cm3605_probe()
214 	if (IS_ERR(cm3605->vdd)) {  in cm3605_probe()
216 		return PTR_ERR(cm3605->vdd);  in cm3605_probe()
218 	ret = regulator_enable(cm3605->vdd);  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()
232 			cm3605_prox_irq, NULL, 0, "cm3605", indio_dev);  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()
243 	indio_dev->name = "cm3605";  in cm3605_probe()
251 	dev_info(dev, "Capella Microsystems CM3605 enabled range 0..%d LUX\n",  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()
269 	struct cm3605 *cm3605 = iio_priv(indio_dev);  in cm3605_remove()  local
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()
283 	struct cm3605 *cm3605 = iio_priv(indio_dev);  in cm3605_pm_suspend()  local
285 	led_trigger_event(cm3605->led, LED_OFF);  in cm3605_pm_suspend()
286 	regulator_disable(cm3605->vdd);  in cm3605_pm_suspend()
294 	struct cm3605 *cm3605 = iio_priv(indio_dev);  in cm3605_pm_resume()  local
297 	ret = regulator_enable(cm3605->vdd);  in cm3605_pm_resume()
300 	led_trigger_event(cm3605->led, LED_FULL);  in cm3605_pm_resume()
311 	{.compatible = "capella,cm3605"},
318 		.name = "cm3605",
328 MODULE_DESCRIPTION("CM3605 ambient light and proximity sensor driver");