88 static bool is_batt_present(struct charger_manager *cm)  in is_batt_present()  argument
95 	switch (cm->desc->battery_present) {  in is_batt_present()
102 		psy = power_supply_get_by_name(cm->desc->psy_fuel_gauge);  in is_batt_present()
113 		for (i = 0; cm->desc->psy_charger_stat[i]; i++) {  in is_batt_present()
115 					cm->desc->psy_charger_stat[i]);  in is_batt_present()
117 				dev_err(cm->dev, "Cannot find power supply \"%s\"\n",  in is_batt_present()
118 					cm->desc->psy_charger_stat[i]);  in is_batt_present()
144 static bool is_ext_pwr_online(struct charger_manager *cm)  in is_ext_pwr_online()  argument
152 	for (i = 0; cm->desc->psy_charger_stat[i]; i++) {  in is_ext_pwr_online()
153 		psy = power_supply_get_by_name(cm->desc->psy_charger_stat[i]);  in is_ext_pwr_online()
155 			dev_err(cm->dev, "Cannot find power supply \"%s\"\n",  in is_ext_pwr_online()
156 					cm->desc->psy_charger_stat[i]);  in is_ext_pwr_online()
180 static int get_batt_uV(struct charger_manager *cm, int *uV)  in get_batt_uV()  argument
186 	fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge);  in get_batt_uV()
204 static bool is_charging(struct charger_manager *cm)  in is_charging()  argument
212 	if (!is_batt_present(cm))  in is_charging()
216 	for (i = 0; cm->desc->psy_charger_stat[i]; i++) {  in is_charging()
218 		if (cm->emergency_stop)  in is_charging()
220 		if (!cm->charger_enabled)  in is_charging()
223 		psy = power_supply_get_by_name(cm->desc->psy_charger_stat[i]);  in is_charging()
225 			dev_err(cm->dev, "Cannot find power supply \"%s\"\n",  in is_charging()
226 					cm->desc->psy_charger_stat[i]);  in is_charging()
234 			dev_warn(cm->dev, "Cannot read ONLINE value from %s\n",  in is_charging()
235 				 cm->desc->psy_charger_stat[i]);  in is_charging()
252 			dev_warn(cm->dev, "Cannot read STATUS value from %s\n",  in is_charging()
253 				 cm->desc->psy_charger_stat[i]);  in is_charging()
273 static bool is_full_charged(struct charger_manager *cm)  in is_full_charged()  argument
275 	struct charger_desc *desc = cm->desc;  in is_full_charged()
283 	if (!is_batt_present(cm))  in is_full_charged()
286 	fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge);  in is_full_charged()
304 		ret = get_batt_uV(cm, &uV);  in is_full_charged()
332 static bool is_polling_required(struct charger_manager *cm)  in is_polling_required()  argument
334 	switch (cm->desc->polling_mode) {  in is_polling_required()
340 		return is_ext_pwr_online(cm);  in is_polling_required()
342 		return is_charging(cm);  in is_polling_required()
344 		dev_warn(cm->dev, "Incorrect polling_mode (%d)\n",  in is_polling_required()
345 			 cm->desc->polling_mode);  in is_polling_required()
361 static int try_charger_enable(struct charger_manager *cm, bool enable)  in try_charger_enable()  argument
364 	struct charger_desc *desc = cm->desc;  in try_charger_enable()
367 	if (enable == cm->charger_enabled)  in try_charger_enable()
371 		if (cm->emergency_stop)  in try_charger_enable()
378 		cm->charging_start_time = ktime_to_ms(ktime_get());  in try_charger_enable()
379 		cm->charging_end_time = 0;  in try_charger_enable()
387 				dev_warn(cm->dev, "Cannot enable %s regulator\n",  in try_charger_enable()
396 		cm->charging_start_time = 0;  in try_charger_enable()
397 		cm->charging_end_time = ktime_to_ms(ktime_get());  in try_charger_enable()
405 				dev_warn(cm->dev, "Cannot disable %s regulator\n",  in try_charger_enable()
419 				dev_warn(cm->dev, "Disable regulator(%s) forcibly\n",  in try_charger_enable()
426 		cm->charger_enabled = enable;  in try_charger_enable()
437 static int try_charger_restart(struct charger_manager *cm)  in try_charger_restart()  argument
441 	if (cm->emergency_stop)  in try_charger_restart()
444 	err = try_charger_enable(cm, false);  in try_charger_restart()
448 	return try_charger_enable(cm, true);  in try_charger_restart()
463 static void uevent_notify(struct charger_manager *cm, const char *event)  in uevent_notify()  argument
489 		kobject_uevent(&cm->dev->kobj, KOBJ_CHANGE);  in uevent_notify()
501 	kobject_uevent(&cm->dev->kobj, KOBJ_CHANGE);  in uevent_notify()
503 	dev_info(cm->dev, "%s\n", event);  in uevent_notify()
518 	struct charger_manager *cm = container_of(dwork,  in fullbatt_vchk()  local
520 	struct charger_desc *desc = cm->desc;  in fullbatt_vchk()
524 	cm->fullbatt_vchk_jiffies_at = 0;  in fullbatt_vchk()
529 	err = get_batt_uV(cm, &batt_uV);  in fullbatt_vchk()
531 		dev_err(cm->dev, "%s: get_batt_uV error(%d)\n", __func__, err);  in fullbatt_vchk()
539 	dev_info(cm->dev, "VBATT dropped %duV after full-batt\n", diff);  in fullbatt_vchk()
542 		try_charger_restart(cm);  in fullbatt_vchk()
543 		uevent_notify(cm, "Recharging");  in fullbatt_vchk()
557 static int check_charging_duration(struct charger_manager *cm)  in check_charging_duration()  argument
559 	struct charger_desc *desc = cm->desc;  in check_charging_duration()
568 	if (cm->charger_enabled) {  in check_charging_duration()
569 		duration = curr - cm->charging_start_time;  in check_charging_duration()
572 			dev_info(cm->dev, "Charging duration exceed %ums\n",  in check_charging_duration()
574 			uevent_notify(cm, "Discharging");  in check_charging_duration()
575 			try_charger_enable(cm, false);  in check_charging_duration()
578 	} else if (is_ext_pwr_online(cm) && !cm->charger_enabled) {  in check_charging_duration()
579 		duration = curr - cm->charging_end_time;  in check_charging_duration()
582 				is_ext_pwr_online(cm)) {  in check_charging_duration()
583 			dev_info(cm->dev, "Discharging duration exceed %ums\n",  in check_charging_duration()
585 			uevent_notify(cm, "Recharging");  in check_charging_duration()
586 			try_charger_enable(cm, true);  in check_charging_duration()
594 static int cm_get_battery_temperature_by_psy(struct charger_manager *cm,  in cm_get_battery_temperature_by_psy()  argument
600 	fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge);  in cm_get_battery_temperature_by_psy()
612 static int cm_get_battery_temperature(struct charger_manager *cm,  in cm_get_battery_temperature()  argument
617 	if (!cm->desc->measure_battery_temp)  in cm_get_battery_temperature()
621 	if (cm->tzd_batt) {  in cm_get_battery_temperature()
622 		ret = thermal_zone_get_temp(cm->tzd_batt, (unsigned long *)temp);  in cm_get_battery_temperature()
630 		ret = cm_get_battery_temperature_by_psy(cm, temp);  in cm_get_battery_temperature()
636 static int cm_check_thermal_status(struct charger_manager *cm)  in cm_check_thermal_status()  argument
638 	struct charger_desc *desc = cm->desc;  in cm_check_thermal_status()
642 	ret = cm_get_battery_temperature(cm, &temp);  in cm_check_thermal_status()
649 		dev_err(cm->dev, "Failed to get battery temperature\n");  in cm_check_thermal_status()
656 	if (cm->emergency_stop) {  in cm_check_thermal_status()
676 static bool _cm_monitor(struct charger_manager *cm)  in _cm_monitor()  argument
680 	temp_alrt = cm_check_thermal_status(cm);  in _cm_monitor()
683 	if (temp_alrt && cm->emergency_stop)  in _cm_monitor()
691 		cm->emergency_stop = temp_alrt;  in _cm_monitor()
692 		if (!try_charger_enable(cm, false))  in _cm_monitor()
693 			uevent_notify(cm, default_event_names[temp_alrt]);  in _cm_monitor()
699 	} else if (!cm->emergency_stop && check_charging_duration(cm)) {  in _cm_monitor()
700 		dev_dbg(cm->dev,  in _cm_monitor()
707 	} else if (!cm->emergency_stop && is_ext_pwr_online(cm) &&  in _cm_monitor()
708 			!cm->charger_enabled) {  in _cm_monitor()
709 		fullbatt_vchk(&cm->fullbatt_vchk_work.work);  in _cm_monitor()
715 	} else if (!cm->emergency_stop && is_full_charged(cm) &&  in _cm_monitor()
716 			cm->charger_enabled) {  in _cm_monitor()
717 		dev_info(cm->dev, "EVENT_HANDLE: Battery Fully Charged\n");  in _cm_monitor()
718 		uevent_notify(cm, default_event_names[CM_EVENT_BATT_FULL]);  in _cm_monitor()
720 		try_charger_enable(cm, false);  in _cm_monitor()
722 		fullbatt_vchk(&cm->fullbatt_vchk_work.work);  in _cm_monitor()
724 		cm->emergency_stop = 0;  in _cm_monitor()
725 		if (is_ext_pwr_online(cm)) {  in _cm_monitor()
726 			if (!try_charger_enable(cm, true))  in _cm_monitor()
727 				uevent_notify(cm, "CHARGING");  in _cm_monitor()
743 	struct charger_manager *cm;  in cm_monitor()  local
747 	list_for_each_entry(cm, &cm_list, entry) {  in cm_monitor()
748 		if (_cm_monitor(cm))  in cm_monitor()
764 	struct charger_manager *cm;  in _setup_polling()  local
770 	list_for_each_entry(cm, &cm_list, entry) {  in _setup_polling()
771 		if (is_polling_required(cm) && cm->desc->polling_interval_ms) {  in _setup_polling()
774 			if (min > cm->desc->polling_interval_ms)  in _setup_polling()
775 				min = cm->desc->polling_interval_ms;  in _setup_polling()
828 static void fullbatt_handler(struct charger_manager *cm)  in fullbatt_handler()  argument
830 	struct charger_desc *desc = cm->desc;  in fullbatt_handler()
836 		device_set_wakeup_capable(cm->dev, true);  in fullbatt_handler()
838 	mod_delayed_work(cm_wq, &cm->fullbatt_vchk_work,  in fullbatt_handler()
840 	cm->fullbatt_vchk_jiffies_at = jiffies + msecs_to_jiffies(  in fullbatt_handler()
843 	if (cm->fullbatt_vchk_jiffies_at == 0)  in fullbatt_handler()
844 		cm->fullbatt_vchk_jiffies_at = 1;  in fullbatt_handler()
847 	dev_info(cm->dev, "EVENT_HANDLE: Battery Fully Charged\n");  in fullbatt_handler()
848 	uevent_notify(cm, default_event_names[CM_EVENT_BATT_FULL]);  in fullbatt_handler()
855 static void battout_handler(struct charger_manager *cm)  in battout_handler()  argument
858 		device_set_wakeup_capable(cm->dev, true);  in battout_handler()
860 	if (!is_batt_present(cm)) {  in battout_handler()
861 		dev_emerg(cm->dev, "Battery Pulled Out!\n");  in battout_handler()
862 		uevent_notify(cm, default_event_names[CM_EVENT_BATT_OUT]);  in battout_handler()
864 		uevent_notify(cm, "Battery Reinserted?");  in battout_handler()
873 static void misc_event_handler(struct charger_manager *cm,  in misc_event_handler()  argument
877 		device_set_wakeup_capable(cm->dev, true);  in misc_event_handler()
879 	if (is_polling_required(cm) && cm->desc->polling_interval_ms)  in misc_event_handler()
881 	uevent_notify(cm, default_event_names[type]);  in misc_event_handler()
888 	struct charger_manager *cm = power_supply_get_drvdata(psy);  in charger_get_property()  local
889 	struct charger_desc *desc = cm->desc;  in charger_get_property()
896 		if (is_charging(cm))  in charger_get_property()
898 		else if (is_ext_pwr_online(cm))  in charger_get_property()
904 		if (cm->emergency_stop > 0)  in charger_get_property()
906 		else if (cm->emergency_stop < 0)  in charger_get_property()
912 		if (is_batt_present(cm))  in charger_get_property()
918 		ret = get_batt_uV(cm, &val->intval);  in charger_get_property()
921 		fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge);  in charger_get_property()
931 		return cm_get_battery_temperature(cm, &val->intval);  in charger_get_property()
933 		if (!is_batt_present(cm)) {  in charger_get_property()
939 		fuel_gauge = power_supply_get_by_name(cm->desc->psy_fuel_gauge);  in charger_get_property()
958 		if (is_charging(cm))  in charger_get_property()
965 		ret = get_batt_uV(cm, &uV);  in charger_get_property()
973 		    !is_charging(cm)) {  in charger_get_property()
980 		if (is_ext_pwr_online(cm))  in charger_get_property()
986 		if (is_full_charged(cm))  in charger_get_property()
993 		if (is_charging(cm)) {  in charger_get_property()
995 					cm->desc->psy_fuel_gauge);  in charger_get_property()
1064 	struct charger_manager *cm;  in cm_setup_timer()  local
1073 	list_for_each_entry(cm, &cm_list, entry) {  in cm_setup_timer()
1077 		if (cm->fullbatt_vchk_jiffies_at) {  in cm_setup_timer()
1078 			fbchk_ms = jiffies_to_msecs(cm->fullbatt_vchk_jiffies_at  in cm_setup_timer()
1081 				cm->fullbatt_vchk_jiffies_at) ||  in cm_setup_timer()
1083 				fullbatt_vchk(&cm->fullbatt_vchk_work.work);  in cm_setup_timer()
1090 		if (!is_polling_required(cm) && !cm->emergency_stop)  in cm_setup_timer()
1093 		if (cm->desc->polling_interval_ms == 0)  in cm_setup_timer()
1095 		CM_MIN_VALID(wakeup_ms, cm->desc->polling_interval_ms);  in cm_setup_timer()
1150 	try_charger_enable(cable->cm, cable->attached);  in charger_extcon_work()
1177 	if (cable->attached && is_polling_required(cable->cm)) {  in charger_extcon_notifier()
1198 static int charger_extcon_init(struct charger_manager *cm,  in charger_extcon_init()  argument
1231 static int charger_manager_register_extcon(struct charger_manager *cm)  in charger_manager_register_extcon()  argument
1233 	struct charger_desc *desc = cm->desc;  in charger_manager_register_extcon()
1242 		charger->consumer = regulator_get(cm->dev,  in charger_manager_register_extcon()
1245 			dev_err(cm->dev, "Cannot find charger(%s)\n",  in charger_manager_register_extcon()
1249 		charger->cm = cm;  in charger_manager_register_extcon()
1254 			ret = charger_extcon_init(cm, cable);  in charger_manager_register_extcon()
1256 				dev_err(cm->dev, "Cannot initialize charger(%s)\n",  in charger_manager_register_extcon()
1261 			cable->cm = cm;  in charger_manager_register_extcon()
1308 	struct charger_manager *cm = charger->cm;  in charger_externally_control_store()  local
1309 	struct charger_desc *desc = cm->desc;  in charger_externally_control_store()
1339 		if (cm->charger_enabled) {  in charger_externally_control_store()
1340 			try_charger_enable(charger->cm, false);  in charger_externally_control_store()
1342 			try_charger_enable(charger->cm, true);  in charger_externally_control_store()
1347 		dev_warn(cm->dev,  in charger_externally_control_store()
1368 static int charger_manager_register_sysfs(struct charger_manager *cm)  in charger_manager_register_sysfs()  argument
1370 	struct charger_desc *desc = cm->desc;  in charger_manager_register_sysfs()
1383 		str = devm_kzalloc(cm->dev,  in charger_manager_register_sysfs()
1421 		dev_info(cm->dev, "'%s' regulator's externally_control is %d\n",  in charger_manager_register_sysfs()
1424 		ret = sysfs_create_group(&cm->charger_psy->dev.kobj,  in charger_manager_register_sysfs()
1427 			dev_err(cm->dev, "Cannot create sysfs entry of %s regulator\n",  in charger_manager_register_sysfs()
1435 …dev_err(cm->dev, "Cannot register regulator because charger-manager must need at least one charger…  in charger_manager_register_sysfs()
1444 static int cm_init_thermal_data(struct charger_manager *cm,  in cm_init_thermal_data()  argument
1447 	struct charger_desc *desc = cm->desc;  in cm_init_thermal_data()
1456 		cm->charger_psy_desc.properties[cm->charger_psy_desc.num_properties] =  in cm_init_thermal_data()
1458 		cm->charger_psy_desc.num_properties++;  in cm_init_thermal_data()
1459 		cm->desc->measure_battery_temp = true;  in cm_init_thermal_data()
1463 		cm->tzd_batt =  in cm_init_thermal_data()
1465 		if (IS_ERR(cm->tzd_batt))  in cm_init_thermal_data()
1466 			return PTR_ERR(cm->tzd_batt);  in cm_init_thermal_data()
1469 		cm->charger_psy_desc.properties[cm->charger_psy_desc.num_properties] =  in cm_init_thermal_data()
1471 		cm->charger_psy_desc.num_properties++;  in cm_init_thermal_data()
1472 		cm->desc->measure_battery_temp = true;  in cm_init_thermal_data()
1476 	if (cm->desc->measure_battery_temp) {  in cm_init_thermal_data()
1626 	struct charger_manager *cm;  in charger_manager_probe()  local
1638 	cm = devm_kzalloc(&pdev->dev,  in charger_manager_probe()
1640 	if (!cm)  in charger_manager_probe()
1644 	cm->dev = &pdev->dev;  in charger_manager_probe()
1645 	cm->desc = desc;  in charger_manager_probe()
1646 	psy_cfg.drv_data = cm;  in charger_manager_probe()
1650 		cm_timer = devm_kzalloc(cm->dev, sizeof(*cm_timer), GFP_KERNEL);  in charger_manager_probe()
1718 	platform_set_drvdata(pdev, cm);  in charger_manager_probe()
1720 	memcpy(&cm->charger_psy_desc, &psy_default, sizeof(psy_default));  in charger_manager_probe()
1723 		strncpy(cm->psy_name_buf, psy_default.name, PSY_NAME_MAX);  in charger_manager_probe()
1725 		strncpy(cm->psy_name_buf, desc->psy_name, PSY_NAME_MAX);  in charger_manager_probe()
1726 	cm->charger_psy_desc.name = cm->psy_name_buf;  in charger_manager_probe()
1729 	cm->charger_psy_desc.properties = devm_kzalloc(&pdev->dev,  in charger_manager_probe()
1733 	if (!cm->charger_psy_desc.properties)  in charger_manager_probe()
1736 	memcpy(cm->charger_psy_desc.properties, default_charger_props,  in charger_manager_probe()
1739 	cm->charger_psy_desc.num_properties = psy_default.num_properties;  in charger_manager_probe()
1750 		cm->charger_psy_desc.properties[cm->charger_psy_desc.num_properties] =  in charger_manager_probe()
1752 		cm->charger_psy_desc.num_properties++;  in charger_manager_probe()
1757 		cm->charger_psy_desc.properties[cm->charger_psy_desc.num_properties] =  in charger_manager_probe()
1759 		cm->charger_psy_desc.num_properties++;  in charger_manager_probe()
1762 	ret = cm_init_thermal_data(cm, fuel_gauge);  in charger_manager_probe()
1765 		cm->desc->measure_battery_temp = false;  in charger_manager_probe()
1769 	INIT_DELAYED_WORK(&cm->fullbatt_vchk_work, fullbatt_vchk);  in charger_manager_probe()
1771 	cm->charger_psy = power_supply_register(NULL, &cm->charger_psy_desc,  in charger_manager_probe()
1773 	if (IS_ERR(cm->charger_psy)) {  in charger_manager_probe()
1775 			cm->charger_psy_desc.name);  in charger_manager_probe()
1776 		return PTR_ERR(cm->charger_psy);  in charger_manager_probe()
1780 	ret = charger_manager_register_extcon(cm);  in charger_manager_probe()
1787 	ret = charger_manager_register_sysfs(cm);  in charger_manager_probe()
1796 	list_add(&cm->entry, &cm_list);  in charger_manager_probe()
1822 		sysfs_remove_group(&cm->charger_psy->dev.kobj,  in charger_manager_probe()
1840 	power_supply_unregister(cm->charger_psy);  in charger_manager_probe()
1847 	struct charger_manager *cm = platform_get_drvdata(pdev);  in charger_manager_remove()  local
1848 	struct charger_desc *desc = cm->desc;  in charger_manager_remove()
1854 	list_del(&cm->entry);  in charger_manager_remove()
1872 	power_supply_unregister(cm->charger_psy);  in charger_manager_remove()
1874 	try_charger_enable(cm, false);  in charger_manager_remove()
1899 	struct charger_manager *cm;  in cm_need_to_awake()  local
1905 	list_for_each_entry(cm, &cm_list, entry) {  in cm_need_to_awake()
1906 		if (is_charging(cm)) {  in cm_need_to_awake()
1918 	struct charger_manager *cm = dev_get_drvdata(dev);  in cm_suspend_prepare()  local
1931 		cancel_delayed_work(&cm->fullbatt_vchk_work);  in cm_suspend_prepare()
1939 	struct charger_manager *cm = dev_get_drvdata(dev);  in cm_suspend_complete()  local
1954 	_cm_monitor(cm);  in cm_suspend_complete()
1957 	if (cm->fullbatt_vchk_jiffies_at) {  in cm_suspend_complete()
1961 		if (time_after_eq(now, cm->fullbatt_vchk_jiffies_at)) {  in cm_suspend_complete()
1963 				- (long)(cm->fullbatt_vchk_jiffies_at));  in cm_suspend_complete()
1978 		queue_delayed_work(cm_wq, &cm->fullbatt_vchk_work,  in cm_suspend_complete()
1981 	device_set_wakeup_capable(cm->dev, false);  in cm_suspend_complete()
2024 static bool find_power_supply(struct charger_manager *cm,  in find_power_supply()  argument
2030 	for (i = 0; cm->desc->psy_charger_stat[i]; i++) {  in find_power_supply()
2031 		if (!strcmp(psy->desc->name, cm->desc->psy_charger_stat[i])) {  in find_power_supply()
2049 	struct charger_manager *cm;  in cm_notify_event()  local
2056 	list_for_each_entry(cm, &cm_list, entry) {  in cm_notify_event()
2057 		found_power_supply = find_power_supply(cm, psy);  in cm_notify_event()
2068 		fullbatt_handler(cm);  in cm_notify_event()
2071 		battout_handler(cm);  in cm_notify_event()
2075 		misc_event_handler(cm, type);  in cm_notify_event()
2079 		uevent_notify(cm, msg ? msg : default_event_names[type]);  in cm_notify_event()
2082 		dev_err(cm->dev, "%s: type not specified\n", __func__);  in cm_notify_event()