Lines Matching full:battery
3 * battery.c - ACPI Battery Driver (Revision: 2.0)
11 #define pr_fmt(fmt) "ACPI: battery: " fmt
30 #include <acpi/battery.h>
36 #define ACPI_BATTERY_DEVICE_NAME "Battery"
38 /* Battery power unit: 0 means mW, 1 means mA */
49 MODULE_DESCRIPTION("ACPI Battery Driver");
78 * is running on battery or not. When mAh is the unit, most
134 static inline int acpi_battery_present(struct acpi_battery *battery) in acpi_battery_present() argument
136 return battery->device->status.battery_present; in acpi_battery_present()
139 static int acpi_battery_technology(struct acpi_battery *battery) in acpi_battery_technology() argument
141 if (!strcasecmp("NiCd", battery->type)) in acpi_battery_technology()
143 if (!strcasecmp("NiMH", battery->type)) in acpi_battery_technology()
145 if (!strcasecmp("LION", battery->type)) in acpi_battery_technology()
147 if (!strncasecmp("LI-ION", battery->type, 6)) in acpi_battery_technology()
149 if (!strcasecmp("LiP", battery->type)) in acpi_battery_technology()
154 static int acpi_battery_get_state(struct acpi_battery *battery);
156 static int acpi_battery_is_charged(struct acpi_battery *battery) in acpi_battery_is_charged() argument
159 if (battery->state != 0) in acpi_battery_is_charged()
162 /* battery not reporting charge */ in acpi_battery_is_charged()
163 if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN || in acpi_battery_is_charged()
164 battery->capacity_now == 0) in acpi_battery_is_charged()
168 if (battery->full_charge_capacity == battery->capacity_now) in acpi_battery_is_charged()
172 if (battery->design_capacity <= battery->capacity_now) in acpi_battery_is_charged()
179 static bool acpi_battery_is_degraded(struct acpi_battery *battery) in acpi_battery_is_degraded() argument
181 return ACPI_BATTERY_CAPACITY_VALID(battery->full_charge_capacity) && in acpi_battery_is_degraded()
182 ACPI_BATTERY_CAPACITY_VALID(battery->design_capacity) && in acpi_battery_is_degraded()
183 battery->full_charge_capacity < battery->design_capacity; in acpi_battery_is_degraded()
186 static int acpi_battery_handle_discharging(struct acpi_battery *battery) in acpi_battery_handle_discharging() argument
189 * Some devices wrongly report discharging if the battery's charge level in acpi_battery_handle_discharging()
194 battery->rate_now == 0) in acpi_battery_handle_discharging()
205 struct acpi_battery *battery = to_acpi_battery(psy); in acpi_battery_get_property() local
207 if (acpi_battery_present(battery)) { in acpi_battery_get_property()
208 /* run battery update only if it is present */ in acpi_battery_get_property()
209 acpi_battery_get_state(battery); in acpi_battery_get_property()
214 if (battery->state & ACPI_BATTERY_STATE_DISCHARGING) in acpi_battery_get_property()
215 val->intval = acpi_battery_handle_discharging(battery); in acpi_battery_get_property()
216 else if (battery->state & ACPI_BATTERY_STATE_CHARGING) in acpi_battery_get_property()
218 else if (acpi_battery_is_charged(battery)) in acpi_battery_get_property()
224 val->intval = acpi_battery_present(battery); in acpi_battery_get_property()
227 val->intval = acpi_battery_technology(battery); in acpi_battery_get_property()
230 val->intval = battery->cycle_count; in acpi_battery_get_property()
233 if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN) in acpi_battery_get_property()
236 val->intval = battery->design_voltage * 1000; in acpi_battery_get_property()
239 if (battery->voltage_now == ACPI_BATTERY_VALUE_UNKNOWN) in acpi_battery_get_property()
242 val->intval = battery->voltage_now * 1000; in acpi_battery_get_property()
246 if (battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN) in acpi_battery_get_property()
249 val->intval = battery->rate_now * 1000; in acpi_battery_get_property()
253 if (!ACPI_BATTERY_CAPACITY_VALID(battery->design_capacity)) in acpi_battery_get_property()
256 val->intval = battery->design_capacity * 1000; in acpi_battery_get_property()
260 if (!ACPI_BATTERY_CAPACITY_VALID(battery->full_charge_capacity)) in acpi_battery_get_property()
263 val->intval = battery->full_charge_capacity * 1000; in acpi_battery_get_property()
267 if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN) in acpi_battery_get_property()
270 val->intval = battery->capacity_now * 1000; in acpi_battery_get_property()
273 if (ACPI_BATTERY_CAPACITY_VALID(battery->full_charge_capacity)) in acpi_battery_get_property()
274 full_capacity = battery->full_charge_capacity; in acpi_battery_get_property()
275 else if (ACPI_BATTERY_CAPACITY_VALID(battery->design_capacity)) in acpi_battery_get_property()
276 full_capacity = battery->design_capacity; in acpi_battery_get_property()
278 if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN || in acpi_battery_get_property()
282 val->intval = battery->capacity_now * 100/ in acpi_battery_get_property()
286 if (battery->state & ACPI_BATTERY_STATE_CRITICAL) in acpi_battery_get_property()
288 else if (test_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags) && in acpi_battery_get_property()
289 (battery->capacity_now <= battery->alarm)) in acpi_battery_get_property()
291 else if (acpi_battery_is_charged(battery)) in acpi_battery_get_property()
297 val->strval = battery->model_number; in acpi_battery_get_property()
300 val->strval = battery->oem_info; in acpi_battery_get_property()
303 val->strval = battery->serial_number; in acpi_battery_get_property()
375 /* Battery Management */
427 static int extract_package(struct acpi_battery *battery, in extract_package() argument
441 u8 *ptr = (u8 *)battery + offsets[i].offset; in extract_package()
462 int *x = (int *)((u8 *)battery + offsets[i].offset); in extract_package()
470 static int acpi_battery_get_status(struct acpi_battery *battery) in acpi_battery_get_status() argument
472 if (acpi_bus_get_status(battery->device)) { in acpi_battery_get_status()
473 acpi_handle_info(battery->device->handle, in acpi_battery_get_status()
482 struct acpi_battery *battery, in extract_battery_info() argument
488 result = extract_package(battery, buffer->pointer, in extract_battery_info()
492 result = extract_package(battery, buffer->pointer, in extract_battery_info()
496 result = extract_package(battery, buffer->pointer, in extract_battery_info()
498 if (test_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags)) in extract_battery_info()
499 battery->full_charge_capacity = battery->design_capacity; in extract_battery_info()
500 if (test_bit(ACPI_BATTERY_QUIRK_THINKPAD_MAH, &battery->flags) && in extract_battery_info()
501 battery->power_unit && battery->design_voltage) { in extract_battery_info()
502 battery->design_capacity = battery->design_capacity * in extract_battery_info()
503 10000 / battery->design_voltage; in extract_battery_info()
504 battery->full_charge_capacity = battery->full_charge_capacity * in extract_battery_info()
505 10000 / battery->design_voltage; in extract_battery_info()
506 battery->design_capacity_warning = in extract_battery_info()
507 battery->design_capacity_warning * in extract_battery_info()
508 10000 / battery->design_voltage; in extract_battery_info()
517 if (test_bit(ACPI_BATTERY_QUIRK_DEGRADED_FULL_CHARGE, &battery->flags) && in extract_battery_info()
518 battery->capacity_now > battery->full_charge_capacity) in extract_battery_info()
519 battery->capacity_now = battery->full_charge_capacity; in extract_battery_info()
524 static int acpi_battery_get_info(struct acpi_battery *battery) in acpi_battery_get_info() argument
526 const int xinfo = test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags); in acpi_battery_get_info()
530 if (!acpi_battery_present(battery)) in acpi_battery_get_info()
538 mutex_lock(&battery->lock); in acpi_battery_get_info()
539 status = acpi_evaluate_object(battery->device->handle, in acpi_battery_get_info()
542 mutex_unlock(&battery->lock); in acpi_battery_get_info()
545 acpi_handle_info(battery->device->handle, in acpi_battery_get_info()
551 battery, in acpi_battery_get_info()
565 static int acpi_battery_get_state(struct acpi_battery *battery) in acpi_battery_get_state() argument
571 if (!acpi_battery_present(battery)) in acpi_battery_get_state()
574 if (battery->update_time && in acpi_battery_get_state()
575 time_before(jiffies, battery->update_time + in acpi_battery_get_state()
579 mutex_lock(&battery->lock); in acpi_battery_get_state()
580 status = acpi_evaluate_object(battery->device->handle, "_BST", in acpi_battery_get_state()
582 mutex_unlock(&battery->lock); in acpi_battery_get_state()
585 acpi_handle_info(battery->device->handle, in acpi_battery_get_state()
591 result = extract_package(battery, buffer.pointer, in acpi_battery_get_state()
593 battery->update_time = jiffies; in acpi_battery_get_state()
600 if (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA && in acpi_battery_get_state()
601 battery->rate_now != ACPI_BATTERY_VALUE_UNKNOWN && in acpi_battery_get_state()
602 (s16)(battery->rate_now) < 0) { in acpi_battery_get_state()
603 battery->rate_now = abs((s16)battery->rate_now); in acpi_battery_get_state()
607 if (test_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags) in acpi_battery_get_state()
608 && battery->capacity_now >= 0 && battery->capacity_now <= 100) in acpi_battery_get_state()
609 battery->capacity_now = (battery->capacity_now * in acpi_battery_get_state()
610 battery->full_charge_capacity) / 100; in acpi_battery_get_state()
611 if (test_bit(ACPI_BATTERY_QUIRK_THINKPAD_MAH, &battery->flags) && in acpi_battery_get_state()
612 battery->power_unit && battery->design_voltage) { in acpi_battery_get_state()
613 battery->capacity_now = battery->capacity_now * in acpi_battery_get_state()
614 10000 / battery->design_voltage; in acpi_battery_get_state()
616 if (test_bit(ACPI_BATTERY_QUIRK_DEGRADED_FULL_CHARGE, &battery->flags) && in acpi_battery_get_state()
617 battery->capacity_now > battery->full_charge_capacity) in acpi_battery_get_state()
618 battery->capacity_now = battery->full_charge_capacity; in acpi_battery_get_state()
623 static int acpi_battery_set_alarm(struct acpi_battery *battery) in acpi_battery_set_alarm() argument
627 if (!acpi_battery_present(battery) || in acpi_battery_set_alarm()
628 !test_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags)) in acpi_battery_set_alarm()
631 mutex_lock(&battery->lock); in acpi_battery_set_alarm()
632 status = acpi_execute_simple_method(battery->device->handle, "_BTP", in acpi_battery_set_alarm()
633 battery->alarm); in acpi_battery_set_alarm()
634 mutex_unlock(&battery->lock); in acpi_battery_set_alarm()
639 acpi_handle_debug(battery->device->handle, "Alarm set to %d\n", in acpi_battery_set_alarm()
640 battery->alarm); in acpi_battery_set_alarm()
645 static int acpi_battery_init_alarm(struct acpi_battery *battery) in acpi_battery_init_alarm() argument
648 if (!acpi_has_method(battery->device->handle, "_BTP")) { in acpi_battery_init_alarm()
649 clear_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags); in acpi_battery_init_alarm()
652 set_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags); in acpi_battery_init_alarm()
653 if (!battery->alarm) in acpi_battery_init_alarm()
654 battery->alarm = battery->design_capacity_warning; in acpi_battery_init_alarm()
655 return acpi_battery_set_alarm(battery); in acpi_battery_init_alarm()
662 struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev)); in acpi_battery_alarm_show() local
664 return sprintf(buf, "%d\n", battery->alarm * 1000); in acpi_battery_alarm_show()
672 struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev)); in acpi_battery_alarm_store() local
675 battery->alarm = x/1000; in acpi_battery_alarm_store()
676 if (acpi_battery_present(battery)) in acpi_battery_alarm_store()
677 acpi_battery_set_alarm(battery); in acpi_battery_alarm_store()
694 * The Battery Hooking API
708 struct acpi_battery *battery; in battery_hook_unregister_unlocked() local
714 list_for_each_entry(battery, &acpi_battery_list, list) { in battery_hook_unregister_unlocked()
715 if (!hook->remove_battery(battery->bat, hook)) in battery_hook_unregister_unlocked()
716 power_supply_changed(battery->bat); in battery_hook_unregister_unlocked()
727 * Ignore already unregistered battery hooks. This might happen in battery_hook_unregister()
728 * if a battery hook was previously unloaded due to an error when in battery_hook_unregister()
729 * adding a new battery. in battery_hook_unregister()
740 struct acpi_battery *battery; in battery_hook_register() local
746 * to notify the hook that a battery is available in battery_hook_register()
747 * for each battery, so that the driver may add in battery_hook_register()
750 list_for_each_entry(battery, &acpi_battery_list, list) { in battery_hook_register()
751 if (hook->add_battery(battery->bat, hook)) { in battery_hook_register()
753 * If a add-battery returns non-zero, in battery_hook_register()
763 power_supply_changed(battery->bat); in battery_hook_register()
772 * This function gets called right after the battery sysfs
776 static void battery_hook_add_battery(struct acpi_battery *battery) in battery_hook_add_battery() argument
781 INIT_LIST_HEAD(&battery->list); in battery_hook_add_battery()
782 list_add(&battery->list, &acpi_battery_list); in battery_hook_add_battery()
784 * Since we added a new battery to the list, we need to in battery_hook_add_battery()
787 * when a battery gets hotplugged or initialized in battery_hook_add_battery()
788 * during the battery module initialization. in battery_hook_add_battery()
791 if (hook_node->add_battery(battery->bat, hook_node)) { in battery_hook_add_battery()
804 static void battery_hook_remove_battery(struct acpi_battery *battery) in battery_hook_remove_battery() argument
811 * custom attributes from the battery. in battery_hook_remove_battery()
814 hook->remove_battery(battery->bat, hook); in battery_hook_remove_battery()
816 /* Then, just remove the battery from the list */ in battery_hook_remove_battery()
817 list_del(&battery->list); in battery_hook_remove_battery()
836 static int sysfs_add_battery(struct acpi_battery *battery) in sysfs_add_battery() argument
839 .drv_data = battery, in sysfs_add_battery()
844 if (!ACPI_BATTERY_CAPACITY_VALID(battery->full_charge_capacity) && in sysfs_add_battery()
845 !ACPI_BATTERY_CAPACITY_VALID(battery->design_capacity)) in sysfs_add_battery()
848 if (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) { in sysfs_add_battery()
850 battery->bat_desc.properties = in sysfs_add_battery()
852 battery->bat_desc.num_properties = in sysfs_add_battery()
855 battery->bat_desc.properties = charge_battery_props; in sysfs_add_battery()
856 battery->bat_desc.num_properties = in sysfs_add_battery()
861 battery->bat_desc.properties = in sysfs_add_battery()
863 battery->bat_desc.num_properties = in sysfs_add_battery()
866 battery->bat_desc.properties = energy_battery_props; in sysfs_add_battery()
867 battery->bat_desc.num_properties = in sysfs_add_battery()
872 battery->bat_desc.name = acpi_device_bid(battery->device); in sysfs_add_battery()
873 battery->bat_desc.type = POWER_SUPPLY_TYPE_BATTERY; in sysfs_add_battery()
874 battery->bat_desc.get_property = acpi_battery_get_property; in sysfs_add_battery()
876 battery->bat = power_supply_register_no_ws(&battery->device->dev, in sysfs_add_battery()
877 &battery->bat_desc, &psy_cfg); in sysfs_add_battery()
879 if (IS_ERR(battery->bat)) { in sysfs_add_battery()
880 int result = PTR_ERR(battery->bat); in sysfs_add_battery()
882 battery->bat = NULL; in sysfs_add_battery()
885 battery_hook_add_battery(battery); in sysfs_add_battery()
889 static void sysfs_remove_battery(struct acpi_battery *battery) in sysfs_remove_battery() argument
891 mutex_lock(&battery->sysfs_lock); in sysfs_remove_battery()
892 if (!battery->bat) { in sysfs_remove_battery()
893 mutex_unlock(&battery->sysfs_lock); in sysfs_remove_battery()
896 battery_hook_remove_battery(battery); in sysfs_remove_battery()
897 power_supply_unregister(battery->bat); in sysfs_remove_battery()
898 battery->bat = NULL; in sysfs_remove_battery()
899 mutex_unlock(&battery->sysfs_lock); in sysfs_remove_battery()
904 struct acpi_battery *battery = (struct acpi_battery *)private; in find_battery() local
914 if (battery->design_capacity * battery->design_voltage / 1000 in find_battery()
916 battery->design_capacity * 10 == dmi_capacity) in find_battery()
918 &battery->flags); in find_battery()
924 * report percentage battery remaining capacity directly to OS.
928 * Now we found some battery reports percentage remaining capacity
934 static void acpi_battery_quirks(struct acpi_battery *battery) in acpi_battery_quirks() argument
936 if (test_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags)) in acpi_battery_quirks()
939 if (battery->full_charge_capacity == 100 && in acpi_battery_quirks()
940 battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN && in acpi_battery_quirks()
941 battery->capacity_now >= 0 && battery->capacity_now <= 100) { in acpi_battery_quirks()
942 set_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags); in acpi_battery_quirks()
943 battery->full_charge_capacity = battery->design_capacity; in acpi_battery_quirks()
944 battery->capacity_now = (battery->capacity_now * in acpi_battery_quirks()
945 battery->full_charge_capacity) / 100; in acpi_battery_quirks()
948 if (test_bit(ACPI_BATTERY_QUIRK_THINKPAD_MAH, &battery->flags)) in acpi_battery_quirks()
951 if (battery->power_unit && dmi_name_in_vendors("LENOVO")) { in acpi_battery_quirks()
956 dmi_walk(find_battery, battery); in acpi_battery_quirks()
958 &battery->flags) && in acpi_battery_quirks()
959 battery->design_voltage) { in acpi_battery_quirks()
960 battery->design_capacity = in acpi_battery_quirks()
961 battery->design_capacity * in acpi_battery_quirks()
962 10000 / battery->design_voltage; in acpi_battery_quirks()
963 battery->full_charge_capacity = in acpi_battery_quirks()
964 battery->full_charge_capacity * in acpi_battery_quirks()
965 10000 / battery->design_voltage; in acpi_battery_quirks()
966 battery->design_capacity_warning = in acpi_battery_quirks()
967 battery->design_capacity_warning * in acpi_battery_quirks()
968 10000 / battery->design_voltage; in acpi_battery_quirks()
969 battery->capacity_now = battery->capacity_now * in acpi_battery_quirks()
970 10000 / battery->design_voltage; in acpi_battery_quirks()
975 if (test_bit(ACPI_BATTERY_QUIRK_DEGRADED_FULL_CHARGE, &battery->flags)) in acpi_battery_quirks()
978 if (acpi_battery_is_degraded(battery) && in acpi_battery_quirks()
979 battery->capacity_now > battery->full_charge_capacity) { in acpi_battery_quirks()
980 set_bit(ACPI_BATTERY_QUIRK_DEGRADED_FULL_CHARGE, &battery->flags); in acpi_battery_quirks()
981 battery->capacity_now = battery->full_charge_capacity; in acpi_battery_quirks()
985 static int acpi_battery_update(struct acpi_battery *battery, bool resume) in acpi_battery_update() argument
987 int result = acpi_battery_get_status(battery); in acpi_battery_update()
992 if (!acpi_battery_present(battery)) { in acpi_battery_update()
993 sysfs_remove_battery(battery); in acpi_battery_update()
994 battery->update_time = 0; in acpi_battery_update()
1001 if (!battery->update_time) { in acpi_battery_update()
1002 result = acpi_battery_get_info(battery); in acpi_battery_update()
1005 acpi_battery_init_alarm(battery); in acpi_battery_update()
1008 result = acpi_battery_get_state(battery); in acpi_battery_update()
1011 acpi_battery_quirks(battery); in acpi_battery_update()
1013 if (!battery->bat) { in acpi_battery_update()
1014 result = sysfs_add_battery(battery); in acpi_battery_update()
1020 * Wakeup the system if battery is critical low in acpi_battery_update()
1023 if ((battery->state & ACPI_BATTERY_STATE_CRITICAL) || in acpi_battery_update()
1024 (test_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags) && in acpi_battery_update()
1025 (battery->capacity_now <= battery->alarm))) in acpi_battery_update()
1026 acpi_pm_wakeup_event(&battery->device->dev); in acpi_battery_update()
1031 static void acpi_battery_refresh(struct acpi_battery *battery) in acpi_battery_refresh() argument
1035 if (!battery->bat) in acpi_battery_refresh()
1038 power_unit = battery->power_unit; in acpi_battery_refresh()
1040 acpi_battery_get_info(battery); in acpi_battery_refresh()
1042 if (power_unit == battery->power_unit) in acpi_battery_refresh()
1045 /* The battery has changed its reporting units. */ in acpi_battery_refresh()
1046 sysfs_remove_battery(battery); in acpi_battery_refresh()
1047 sysfs_add_battery(battery); in acpi_battery_refresh()
1054 struct acpi_battery *battery = acpi_driver_data(device); in acpi_battery_notify() local
1057 if (!battery) in acpi_battery_notify()
1059 old = battery->bat; in acpi_battery_notify()
1063 * triggered, battery state is still reported as "Full", and changes to in acpi_battery_notify()
1069 acpi_battery_refresh(battery); in acpi_battery_notify()
1070 acpi_battery_update(battery, false); in acpi_battery_notify()
1073 acpi_battery_present(battery)); in acpi_battery_notify()
1074 acpi_notifier_call_chain(device, event, acpi_battery_present(battery)); in acpi_battery_notify()
1076 if (old && battery->bat) in acpi_battery_notify()
1077 power_supply_changed(battery->bat); in acpi_battery_notify()
1083 struct acpi_battery *battery = container_of(nb, struct acpi_battery, in battery_notify() local
1090 if (!acpi_battery_present(battery)) in battery_notify()
1093 if (battery->bat) { in battery_notify()
1094 acpi_battery_refresh(battery); in battery_notify()
1096 result = acpi_battery_get_info(battery); in battery_notify()
1100 result = sysfs_add_battery(battery); in battery_notify()
1105 acpi_battery_init_alarm(battery); in battery_notify()
1106 acpi_battery_get_state(battery); in battery_notify()
1175 * during boot up and this causes battery driver fails to be
1176 * probed due to failure of getting battery information
1181 static int acpi_battery_update_retry(struct acpi_battery *battery) in acpi_battery_update_retry() argument
1186 ret = acpi_battery_update(battery, false); in acpi_battery_update_retry()
1198 struct acpi_battery *battery = NULL; in acpi_battery_add() local
1206 battery = kzalloc(sizeof(struct acpi_battery), GFP_KERNEL); in acpi_battery_add()
1207 if (!battery) in acpi_battery_add()
1209 battery->device = device; in acpi_battery_add()
1212 device->driver_data = battery; in acpi_battery_add()
1213 mutex_init(&battery->lock); in acpi_battery_add()
1214 mutex_init(&battery->sysfs_lock); in acpi_battery_add()
1215 if (acpi_has_method(battery->device->handle, "_BIX")) in acpi_battery_add()
1216 set_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags); in acpi_battery_add()
1218 result = acpi_battery_update_retry(battery); in acpi_battery_add()
1222 pr_info("Slot [%s] (battery %s)\n", acpi_device_bid(device), in acpi_battery_add()
1225 battery->pm_nb.notifier_call = battery_notify; in acpi_battery_add()
1226 register_pm_notifier(&battery->pm_nb); in acpi_battery_add()
1239 unregister_pm_notifier(&battery->pm_nb); in acpi_battery_add()
1241 sysfs_remove_battery(battery); in acpi_battery_add()
1242 mutex_destroy(&battery->lock); in acpi_battery_add()
1243 mutex_destroy(&battery->sysfs_lock); in acpi_battery_add()
1244 kfree(battery); in acpi_battery_add()
1251 struct acpi_battery *battery = NULL; in acpi_battery_remove() local
1256 battery = acpi_driver_data(device); in acpi_battery_remove()
1262 unregister_pm_notifier(&battery->pm_nb); in acpi_battery_remove()
1263 sysfs_remove_battery(battery); in acpi_battery_remove()
1265 mutex_destroy(&battery->lock); in acpi_battery_remove()
1266 mutex_destroy(&battery->sysfs_lock); in acpi_battery_remove()
1267 kfree(battery); in acpi_battery_remove()
1274 struct acpi_battery *battery; in acpi_battery_resume() local
1279 battery = acpi_driver_data(to_acpi_device(dev)); in acpi_battery_resume()
1280 if (!battery) in acpi_battery_resume()
1283 battery->update_time = 0; in acpi_battery_resume()
1284 acpi_battery_update(battery, true); in acpi_battery_resume()
1294 .name = "battery",