3  * MP2629 battery charger driver
147 static int mp2629_read_adc(struct mp2629_charger *charger,  in mp2629_read_adc()  argument
154 	ret = iio_read_channel_processed(charger->iiochan[ch], &chval);  in mp2629_read_adc()
163 static int mp2629_get_prop(struct mp2629_charger *charger,  in mp2629_get_prop()  argument
170 	ret = regmap_field_read(charger->regmap_fields[fld], &rval);  in mp2629_get_prop()
179 static int mp2629_set_prop(struct mp2629_charger *charger,  in mp2629_set_prop()  argument
189 	return regmap_field_write(charger->regmap_fields[fld], rval);  in mp2629_set_prop()
192 static int mp2629_get_battery_capacity(struct mp2629_charger *charger,  in mp2629_get_battery_capacity()  argument
198 	ret = mp2629_read_adc(charger, MP2629_BATT_VOLT, &vnow);  in mp2629_get_battery_capacity()
202 	ret = mp2629_get_prop(charger, CHARGE_VLIM, &vlim);  in mp2629_get_battery_capacity()
216 	struct mp2629_charger *charger = dev_get_drvdata(psy->dev.parent);  in mp2629_charger_battery_get_prop()  local
222 		ret = mp2629_read_adc(charger, MP2629_BATT_VOLT, val);  in mp2629_charger_battery_get_prop()
226 		ret = mp2629_read_adc(charger, MP2629_BATT_CURRENT, val);  in mp2629_charger_battery_get_prop()
238 		ret = mp2629_get_battery_capacity(charger, val);  in mp2629_charger_battery_get_prop()
242 		ret = mp2629_get_prop(charger, TERM_CURRENT, val);  in mp2629_charger_battery_get_prop()
246 		ret = mp2629_get_prop(charger, PRECHARGE, val);  in mp2629_charger_battery_get_prop()
250 		ret = mp2629_get_prop(charger, CHARGE_VLIM, val);  in mp2629_charger_battery_get_prop()
254 		ret = mp2629_get_prop(charger, CHARGE_ILIM, val);  in mp2629_charger_battery_get_prop()
258 		if (!charger->fault)  in mp2629_charger_battery_get_prop()
260 		if (MP2629_FAULT_BATTERY & charger->fault)  in mp2629_charger_battery_get_prop()
262 		else if (MP2629_FAULT_THERMAL & charger->fault)  in mp2629_charger_battery_get_prop()
264 		else if (MP2629_FAULT_INPUT & charger->fault)  in mp2629_charger_battery_get_prop()
269 		ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval);  in mp2629_charger_battery_get_prop()
288 		ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval);  in mp2629_charger_battery_get_prop()
319 	struct mp2629_charger *charger = dev_get_drvdata(psy->dev.parent);  in mp2629_charger_battery_set_prop()  local
323 		return mp2629_set_prop(charger, TERM_CURRENT, val);  in mp2629_charger_battery_set_prop()
326 		return mp2629_set_prop(charger, PRECHARGE, val);  in mp2629_charger_battery_set_prop()
329 		return mp2629_set_prop(charger, CHARGE_VLIM, val);  in mp2629_charger_battery_set_prop()
332 		return mp2629_set_prop(charger, CHARGE_ILIM, val);  in mp2629_charger_battery_set_prop()
343 	struct mp2629_charger *charger = dev_get_drvdata(psy->dev.parent);  in mp2629_charger_usb_get_prop()  local
349 		ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval);  in mp2629_charger_usb_get_prop()
357 		ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval);  in mp2629_charger_usb_get_prop()
382 		ret = mp2629_read_adc(charger, MP2629_INPUT_VOLT, val);  in mp2629_charger_usb_get_prop()
386 		ret = mp2629_read_adc(charger, MP2629_INPUT_CURRENT, val);  in mp2629_charger_usb_get_prop()
390 		ret = mp2629_get_prop(charger, INPUT_VLIM, val);  in mp2629_charger_usb_get_prop()
394 		ret = mp2629_get_prop(charger, INPUT_ILIM, val);  in mp2629_charger_usb_get_prop()
408 	struct mp2629_charger *charger = dev_get_drvdata(psy->dev.parent);  in mp2629_charger_usb_set_prop()  local
412 		return mp2629_set_prop(charger, INPUT_VLIM, val);  in mp2629_charger_usb_set_prop()
415 		return mp2629_set_prop(charger, INPUT_ILIM, val);  in mp2629_charger_usb_set_prop()
440 	struct mp2629_charger *charger = dev_id;  in mp2629_irq_handler()  local
444 	mutex_lock(&charger->lock);  in mp2629_irq_handler()
446 	ret = regmap_read(charger->regmap, MP2629_REG_FAULT, &rval);  in mp2629_irq_handler()
451 		charger->fault = rval;  in mp2629_irq_handler()
453 			dev_err(charger->dev, "Battery fault OVP\n");  in mp2629_irq_handler()
455 			dev_err(charger->dev, "Thermal shutdown fault\n");  in mp2629_irq_handler()
457 			dev_err(charger->dev, "no input or input OVP\n");  in mp2629_irq_handler()
459 			dev_err(charger->dev, "VIN overloaded\n");  in mp2629_irq_handler()
464 	ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval);  in mp2629_irq_handler()
469 		power_supply_changed(charger->usb);  in mp2629_irq_handler()
471 		power_supply_changed(charger->battery);  in mp2629_irq_handler()
474 	mutex_unlock(&charger->lock);  in mp2629_irq_handler()
508 	struct mp2629_charger *charger = dev_get_drvdata(dev->parent);  in batt_impedance_compensation_show()  local
512 	ret = regmap_read(charger->regmap, MP2629_REG_IMPEDANCE_COMP, &rval);  in batt_impedance_compensation_show()
525 	struct mp2629_charger *charger = dev_get_drvdata(dev->parent);  in batt_impedance_compensation_store()  local
538 	ret = regmap_update_bits(charger->regmap, MP2629_REG_IMPEDANCE_COMP,  in batt_impedance_compensation_store()
556 	struct mp2629_charger *charger = data;  in mp2629_charger_disable()  local
558 	regmap_update_bits(charger->regmap, MP2629_REG_CHARGE_CTRL,  in mp2629_charger_disable()
566 	struct mp2629_charger *charger;  in mp2629_charger_probe()  local
570 	charger = devm_kzalloc(dev, sizeof(*charger), GFP_KERNEL);  in mp2629_charger_probe()
571 	if (!charger)  in mp2629_charger_probe()
574 	charger->regmap = ddata->regmap;  in mp2629_charger_probe()
575 	charger->dev = dev;  in mp2629_charger_probe()
576 	platform_set_drvdata(pdev, charger);  in mp2629_charger_probe()
583 		charger->regmap_fields[i] = devm_regmap_field_alloc(dev,  in mp2629_charger_probe()
584 					charger->regmap, mp2629_reg_fields[i]);  in mp2629_charger_probe()
585 		if (IS_ERR(charger->regmap_fields[i])) {  in mp2629_charger_probe()
587 			return PTR_ERR(charger->regmap_fields[i]);  in mp2629_charger_probe()
592 		charger->iiochan[i] = devm_iio_channel_get(dev,  in mp2629_charger_probe()
594 		if (IS_ERR(charger->iiochan[i])) {  in mp2629_charger_probe()
596 			return PTR_ERR(charger->iiochan[i]);  in mp2629_charger_probe()
600 	ret = devm_add_action_or_reset(dev, mp2629_charger_disable, charger);  in mp2629_charger_probe()
604 	charger->usb = devm_power_supply_register(dev, &mp2629_usb_desc, NULL);  in mp2629_charger_probe()
605 	if (IS_ERR(charger->usb)) {  in mp2629_charger_probe()
607 		return PTR_ERR(charger->usb);  in mp2629_charger_probe()
610 	psy_cfg.drv_data = charger;  in mp2629_charger_probe()
612 	charger->battery = devm_power_supply_register(dev,  in mp2629_charger_probe()
614 	if (IS_ERR(charger->battery)) {  in mp2629_charger_probe()
616 		return PTR_ERR(charger->battery);  in mp2629_charger_probe()
619 	ret = regmap_update_bits(charger->regmap, MP2629_REG_CHARGE_CTRL,  in mp2629_charger_probe()
626 	regmap_update_bits(charger->regmap, MP2629_REG_TIMER_CTRL,  in mp2629_charger_probe()
629 	mutex_init(&charger->lock);  in mp2629_charger_probe()
633 					"mp2629-charger", charger);  in mp2629_charger_probe()
639 	regmap_update_bits(charger->regmap, MP2629_REG_INTERRUPT,  in mp2629_charger_probe()
661 MODULE_DESCRIPTION("MP2629 Charger driver");