power/supply/max8903_charger.c

49 	struct max8903_data *data = power_supply_get_drvdata(psy);
54 		if (data->chg) {
55 			if (gpiod_get_value(data->chg))
58 			else if (data->usb_in || data->ta_in)
66 		if (data->usb_in || data->ta_in)
71 		if (data->fault)
83 	struct max8903_data *data = _data;
94 	ta_in = gpiod_get_value(data->dok);
96 	if (ta_in == data->ta_in)
99 	data->ta_in = ta_in;
102 	if (data->dcm)
103 		gpiod_set_value(data->dcm, ta_in);
106 	if (data->cen) {
112 		else if (data->usb_in)
119 		gpiod_set_value(data->cen, val);
122 	dev_dbg(data->dev, "TA(DC-IN) Charger %s.\n", ta_in ?
125 	old_type = data->psy_desc.type;
127 	if (data->ta_in)
128 		data->psy_desc.type = POWER_SUPPLY_TYPE_MAINS;
129 	else if (data->usb_in)
130 		data->psy_desc.type = POWER_SUPPLY_TYPE_USB;
132 		data->psy_desc.type = POWER_SUPPLY_TYPE_BATTERY;
134 	if (old_type != data->psy_desc.type)
135 		power_supply_changed(data->psy);
142 	struct max8903_data *data = _data;
153 	usb_in = gpiod_get_value(data->uok);
155 	if (usb_in == data->usb_in)
158 	data->usb_in = usb_in;
163 	if (data->cen) {
169 		else if (data->ta_in)
176 		gpiod_set_value(data->cen, val);
179 	dev_dbg(data->dev, "USB Charger %s.\n", usb_in ?
182 	old_type = data->psy_desc.type;
184 	if (data->ta_in)
185 		data->psy_desc.type = POWER_SUPPLY_TYPE_MAINS;
186 	else if (data->usb_in)
187 		data->psy_desc.type = POWER_SUPPLY_TYPE_USB;
189 		data->psy_desc.type = POWER_SUPPLY_TYPE_BATTERY;
191 	if (old_type != data->psy_desc.type)
192 		power_supply_changed(data->psy);
199 	struct max8903_data *data = _data;
209 	fault = gpiod_get_value(data->flt);
211 	if (fault == data->fault)
214 	data->fault = fault;
217 		dev_err(data->dev, "Charger suffers a fault and stops.\n");
219 		dev_err(data->dev, "Charger recovered from a fault.\n");
226 	struct max8903_data *data = platform_get_drvdata(pdev);
232 	data->dok = devm_gpiod_get_optional(dev, "dok", GPIOD_IN);
233 	if (IS_ERR(data->dok))
234 		return dev_err_probe(dev, PTR_ERR(data->dok),
236 	if (data->dok) {
237 		gpiod_set_consumer_name(data->dok, data->psy_desc.name);
244 		ta_in = gpiod_get_value(data->dok);
247 	data->uok = devm_gpiod_get_optional(dev, "uok", GPIOD_IN);
248 	if (IS_ERR(data->uok))
249 		return dev_err_probe(dev, PTR_ERR(data->uok),
251 	if (data->uok) {
252 		gpiod_set_consumer_name(data->uok, data->psy_desc.name);
259 		usb_in = gpiod_get_value(data->uok);
263 	if (!data->dok && !data->uok) {
281 	data->cen = devm_gpiod_get(dev, "cen", flags);
282 	if (IS_ERR(data->cen))
283 		return dev_err_probe(dev, PTR_ERR(data->cen),
285 	gpiod_set_consumer_name(data->cen, data->psy_desc.name);
295 	data->dcm = devm_gpiod_get_optional(dev, "dcm", flags);
296 	if (IS_ERR(data->dcm))
297 		return dev_err_probe(dev, PTR_ERR(data->dcm),
299 	gpiod_set_consumer_name(data->dcm, data->psy_desc.name);
301 	data->chg = devm_gpiod_get_optional(dev, "chg", GPIOD_IN);
302 	if (IS_ERR(data->chg))
303 		return dev_err_probe(dev, PTR_ERR(data->chg),
305 	gpiod_set_consumer_name(data->chg, data->psy_desc.name);
307 	data->flt = devm_gpiod_get_optional(dev, "flt", GPIOD_IN);
308 	if (IS_ERR(data->flt))
309 		return dev_err_probe(dev, PTR_ERR(data->flt),
311 	gpiod_set_consumer_name(data->flt, data->psy_desc.name);
313 	data->usus = devm_gpiod_get_optional(dev, "usus", GPIOD_IN);
314 	if (IS_ERR(data->usus))
315 		return dev_err_probe(dev, PTR_ERR(data->usus),
317 	gpiod_set_consumer_name(data->usus, data->psy_desc.name);
319 	data->fault = false;
320 	data->ta_in = ta_in;
321 	data->usb_in = usb_in;
328 	struct max8903_data *data;
333 	data = devm_kzalloc(dev, sizeof(struct max8903_data), GFP_KERNEL);
334 	if (!data)
337 	data->dev = dev;
338 	platform_set_drvdata(pdev, data);
344 	data->psy_desc.name = "max8903_charger";
345 	data->psy_desc.type = (data->ta_in) ? POWER_SUPPLY_TYPE_MAINS :
346 			((data->usb_in) ? POWER_SUPPLY_TYPE_USB :
348 	data->psy_desc.get_property = max8903_get_property;
349 	data->psy_desc.properties = max8903_charger_props;
350 	data->psy_desc.num_properties = ARRAY_SIZE(max8903_charger_props);
353 	psy_cfg.drv_data = data;
355 	data->psy = devm_power_supply_register(dev, &data->psy_desc, &psy_cfg);
356 	if (IS_ERR(data->psy)) {
358 		return PTR_ERR(data->psy);
361 	if (data->dok) {
362 		ret = devm_request_threaded_irq(dev, gpiod_to_irq(data->dok),
366 					"MAX8903 DC IN", data);
369 					gpiod_to_irq(data->dok), ret);
374 	if (data->uok) {
375 		ret = devm_request_threaded_irq(dev, gpiod_to_irq(data->uok),
379 					"MAX8903 USB IN", data);
382 					gpiod_to_irq(data->uok), ret);
387 	if (data->flt) {
388 		ret = devm_request_threaded_irq(dev, gpiod_to_irq(data->flt),
392 					"MAX8903 Fault", data);
395 					gpiod_to_irq(data->flt), ret);