3  * MP2629 battery charger driver
155 static int mp2629_read_adc(struct mp2629_charger *charger,  in mp2629_read_adc()  argument
162 	ret = iio_read_channel_processed(charger->iiochan[ch], &chval);  in mp2629_read_adc()
171 static int mp2629_get_prop(struct mp2629_charger *charger,  in mp2629_get_prop()  argument
178 	ret = regmap_field_read(charger->regmap_fields[fld], &rval);  in mp2629_get_prop()
187 static int mp2629_set_prop(struct mp2629_charger *charger,  in mp2629_set_prop()  argument
197 	return regmap_field_write(charger->regmap_fields[fld], rval);  in mp2629_set_prop()
200 static int mp2629_get_battery_capacity(struct mp2629_charger *charger,  in mp2629_get_battery_capacity()  argument
206 	ret = mp2629_read_adc(charger, MP2629_BATT_VOLT, &vnow);  in mp2629_get_battery_capacity()
210 	ret = mp2629_get_prop(charger, CHARGE_VLIM, &vlim);  in mp2629_get_battery_capacity()
224 	struct mp2629_charger *charger = dev_get_drvdata(psy->dev.parent);  in mp2629_charger_battery_get_prop()  local
230 		ret = mp2629_read_adc(charger, MP2629_BATT_VOLT, val);  in mp2629_charger_battery_get_prop()
234 		ret = mp2629_read_adc(charger, MP2629_BATT_CURRENT, val);  in mp2629_charger_battery_get_prop()
246 		ret = mp2629_get_battery_capacity(charger, val);  in mp2629_charger_battery_get_prop()
250 		ret = mp2629_get_prop(charger, TERM_CURRENT, val);  in mp2629_charger_battery_get_prop()
254 		ret = mp2629_get_prop(charger, PRECHARGE, val);  in mp2629_charger_battery_get_prop()
258 		ret = mp2629_get_prop(charger, CHARGE_VLIM, val);  in mp2629_charger_battery_get_prop()
262 		ret = mp2629_get_prop(charger, CHARGE_ILIM, val);  in mp2629_charger_battery_get_prop()
266 		if (!charger->fault)  in mp2629_charger_battery_get_prop()
268 		if (MP2629_FAULT_BATTERY & charger->fault)  in mp2629_charger_battery_get_prop()
270 		else if (MP2629_FAULT_THERMAL & charger->fault)  in mp2629_charger_battery_get_prop()
272 		else if (MP2629_FAULT_INPUT & charger->fault)  in mp2629_charger_battery_get_prop()
277 		ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval);  in mp2629_charger_battery_get_prop()
296 		ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval);  in mp2629_charger_battery_get_prop()
327 	struct mp2629_charger *charger = dev_get_drvdata(psy->dev.parent);  in mp2629_charger_battery_set_prop()  local
331 		return mp2629_set_prop(charger, TERM_CURRENT, val);  in mp2629_charger_battery_set_prop()
334 		return mp2629_set_prop(charger, PRECHARGE, val);  in mp2629_charger_battery_set_prop()
337 		return mp2629_set_prop(charger, CHARGE_VLIM, val);  in mp2629_charger_battery_set_prop()
340 		return mp2629_set_prop(charger, CHARGE_ILIM, val);  in mp2629_charger_battery_set_prop()
351 	struct mp2629_charger *charger = dev_get_drvdata(psy->dev.parent);  in mp2629_charger_usb_get_prop()  local
357 		ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval);  in mp2629_charger_usb_get_prop()
365 		ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval);  in mp2629_charger_usb_get_prop()
390 		ret = mp2629_read_adc(charger, MP2629_INPUT_VOLT, val);  in mp2629_charger_usb_get_prop()
394 		ret = mp2629_read_adc(charger, MP2629_INPUT_CURRENT, val);  in mp2629_charger_usb_get_prop()
398 		ret = mp2629_get_prop(charger, INPUT_VLIM, val);  in mp2629_charger_usb_get_prop()
402 		ret = mp2629_get_prop(charger, INPUT_ILIM, val);  in mp2629_charger_usb_get_prop()
416 	struct mp2629_charger *charger = dev_get_drvdata(psy->dev.parent);  in mp2629_charger_usb_set_prop()  local
420 		return mp2629_set_prop(charger, INPUT_VLIM, val);  in mp2629_charger_usb_set_prop()
423 		return mp2629_set_prop(charger, INPUT_ILIM, val);  in mp2629_charger_usb_set_prop()
448 	struct mp2629_charger *charger = dev_id;  in mp2629_irq_handler()  local
452 	mutex_lock(&charger->lock);  in mp2629_irq_handler()
454 	ret = regmap_read(charger->regmap, MP2629_REG_FAULT, &rval);  in mp2629_irq_handler()
459 		charger->fault = rval;  in mp2629_irq_handler()
461 			dev_err(charger->dev, "Battery fault OVP\n");  in mp2629_irq_handler()
463 			dev_err(charger->dev, "Thermal shutdown fault\n");  in mp2629_irq_handler()
465 			dev_err(charger->dev, "no input or input OVP\n");  in mp2629_irq_handler()
467 			dev_err(charger->dev, "VIN overloaded\n");  in mp2629_irq_handler()
472 	ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval);  in mp2629_irq_handler()
477 		power_supply_changed(charger->usb);  in mp2629_irq_handler()
479 		power_supply_changed(charger->battery);  in mp2629_irq_handler()
482 	mutex_unlock(&charger->lock);  in mp2629_irq_handler()
513 	struct mp2629_charger *charger = dev_get_drvdata(dev->parent);  in batt_impedance_compensation_show()  local
517 	ret = regmap_read(charger->regmap, MP2629_REG_IMPEDANCE_COMP, &rval);  in batt_impedance_compensation_show()
530 	struct mp2629_charger *charger = dev_get_drvdata(dev->parent);  in batt_impedance_compensation_store()  local
543 	ret = regmap_update_bits(charger->regmap, MP2629_REG_IMPEDANCE_COMP,  in batt_impedance_compensation_store()
561 	struct mp2629_charger *charger = data;  in mp2629_charger_disable()  local
563 	regmap_update_bits(charger->regmap, MP2629_REG_CHARGE_CTRL,  in mp2629_charger_disable()
571 	struct mp2629_charger *charger;  in mp2629_charger_probe()  local
575 	charger = devm_kzalloc(dev, sizeof(*charger), GFP_KERNEL);  in mp2629_charger_probe()
576 	if (!charger)  in mp2629_charger_probe()
579 	charger->regmap = ddata->regmap;  in mp2629_charger_probe()
580 	charger->dev = dev;  in mp2629_charger_probe()
581 	platform_set_drvdata(pdev, charger);  in mp2629_charger_probe()
590 		charger->regmap_fields[i] = devm_regmap_field_alloc(dev,  in mp2629_charger_probe()
591 					charger->regmap, mp2629_reg_fields[i]);  in mp2629_charger_probe()
592 		if (IS_ERR(charger->regmap_fields[i])) {  in mp2629_charger_probe()
594 			return PTR_ERR(charger->regmap_fields[i]);  in mp2629_charger_probe()
599 		charger->iiochan[i] = devm_iio_channel_get(dev,  in mp2629_charger_probe()
601 		if (IS_ERR(charger->iiochan[i])) {  in mp2629_charger_probe()
603 			return PTR_ERR(charger->iiochan[i]);  in mp2629_charger_probe()
607 	ret = devm_add_action_or_reset(dev, mp2629_charger_disable, charger);  in mp2629_charger_probe()
611 	charger->usb = devm_power_supply_register(dev, &mp2629_usb_desc, NULL);  in mp2629_charger_probe()
612 	if (IS_ERR(charger->usb)) {  in mp2629_charger_probe()
614 		return PTR_ERR(charger->usb);  in mp2629_charger_probe()
617 	psy_cfg.drv_data = charger;  in mp2629_charger_probe()
619 	charger->battery = devm_power_supply_register(dev,  in mp2629_charger_probe()
621 	if (IS_ERR(charger->battery)) {  in mp2629_charger_probe()
623 		return PTR_ERR(charger->battery);  in mp2629_charger_probe()
626 	ret = regmap_update_bits(charger->regmap, MP2629_REG_CHARGE_CTRL,  in mp2629_charger_probe()
633 	regmap_update_bits(charger->regmap, MP2629_REG_TIMER_CTRL,  in mp2629_charger_probe()
636 	mutex_init(&charger->lock);  in mp2629_charger_probe()
640 					"mp2629-charger", charger);  in mp2629_charger_probe()
646 	regmap_update_bits(charger->regmap, MP2629_REG_INTERRUPT,  in mp2629_charger_probe()
668 MODULE_DESCRIPTION("MP2629 Charger driver");