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/openbmc/linux/drivers/acpi/
H A Dbattery.c134 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
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H A Dsbs.c89 struct acpi_battery battery[MAX_SBS_BAT]; member
99 static int acpi_battery_get_state(struct acpi_battery *battery);
109 static inline int acpi_battery_vscale(struct acpi_battery *battery) in acpi_battery_vscale() argument
111 return battery_scale((battery->spec & 0x0f00) >> 8); in acpi_battery_vscale()
114 static inline int acpi_battery_ipscale(struct acpi_battery *battery) in acpi_battery_ipscale() argument
116 return battery_scale((battery->spec & 0xf000) >> 12); in acpi_battery_ipscale()
119 static inline int acpi_battery_mode(struct acpi_battery *battery) in acpi_battery_mode() argument
121 return (battery->mode & 0x8000); in acpi_battery_mode()
124 static inline int acpi_battery_scale(struct acpi_battery *battery) in acpi_battery_scale() argument
126 return (acpi_battery_mode(battery) ? 10 : 1) * in acpi_battery_scale()
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/openbmc/linux/drivers/power/supply/
H A Drt5033_battery.c24 struct rt5033_battery *battery = i2c_get_clientdata(client); in rt5033_battery_get_status() local
28 ret = power_supply_get_property_from_supplier(battery->psy, in rt5033_battery_get_status()
39 struct rt5033_battery *battery = i2c_get_clientdata(client); in rt5033_battery_get_capacity() local
42 regmap_read(battery->regmap, RT5033_FUEL_REG_SOC_H, &msb); in rt5033_battery_get_capacity()
49 struct rt5033_battery *battery = i2c_get_clientdata(client); in rt5033_battery_get_present() local
52 regmap_read(battery->regmap, RT5033_FUEL_REG_CONFIG_L, &val); in rt5033_battery_get_present()
60 struct rt5033_battery *battery = i2c_get_clientdata(client); in rt5033_battery_get_watt_prop() local
82 regmap_read(battery->regmap, regh, &msb); in rt5033_battery_get_watt_prop()
83 regmap_read(battery->regmap, regl, &lsb); in rt5033_battery_get_watt_prop()
94 struct rt5033_battery *battery = power_supply_get_drvdata(psy); in rt5033_battery_get_property() local
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H A DKconfig36 battery class devices.
39 tristate "Generic battery support using IIO"
42 Say Y here to enable support for the generic battery driver
51 which include a battery charger and a boost converter.
54 tristate "MAX8925 battery charger support"
57 Say Y here to enable support for the battery charger in the Maxim
61 tristate "WM831X backup battery charger support"
64 Say Y here to enable support for the backup battery charger
87 tristate "Marvell 88PM860x battery driver"
90 Say Y here to enable battery monitor for Marvell 88PM860x chip.
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H A Dds2782_battery.c56 struct power_supply *battery; member
285 power_supply_changed(info->battery); in ds278x_bat_update()
306 static void ds278x_power_supply_init(struct power_supply_desc *battery) in ds278x_power_supply_init() argument
308 battery->type = POWER_SUPPLY_TYPE_BATTERY; in ds278x_power_supply_init()
309 battery->properties = ds278x_battery_props; in ds278x_power_supply_init()
310 battery->num_properties = ARRAY_SIZE(ds278x_battery_props); in ds278x_power_supply_init()
311 battery->get_property = ds278x_battery_get_property; in ds278x_power_supply_init()
312 battery->external_power_changed = NULL; in ds278x_power_supply_init()
320 power_supply_unregister(info->battery); in ds278x_battery_remove()
425 info->battery = power_supply_register(&client->dev, in ds278x_battery_probe()
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/openbmc/linux/Documentation/devicetree/bindings/rtc/
H A Drtc-palmas.txt10 - ti,backup-battery-chargeable: The Palmas series device like TPS65913 or
11 TPS80036 supports the backup battery for powering the RTC when main
12 battery is removed or in very low power state. The backup battery
14 battery is chargeable or not. If charging battery then driver can
16 - ti,backup-battery-charge-high-current: Enable high current charging in
17 backup battery. Device supports the < 100uA and > 100uA charging.
19 charge battery to lower current i.e. < 100uA.
28 ti,backup-battery-chargeable;
29 ti,backup-battery-charge-high-current;
/openbmc/linux/Documentation/devicetree/bindings/power/supply/
H A Dstericsson,ab8500-battery.txt2 information about the battery connected to the PMIC.
8 A boolean value indicating thermistor interface to battery
11 'btemp' and 'batctrl' are the pins interfaced for battery temperature
13 coefficient) resister is interfaced external to battery whereas
14 'batctrl' pin is used when NTC resister is internal to battery.
20 indicates: NTC resister is internal to battery, 'batctrl' is used
24 NTC resister is external to battery and 'btemp' signal is used
27 battery-type:
28 This shall be the battery manufacturing technology type,
33 stericsson,battery-type = "LIPO";
/openbmc/linux/Documentation/hwmon/
H A Dda9052.rst27 Channel 1 ICH - internal battery charger current measurement
28 Channel 2 TBAT - output from the battery NTC
29 Channel 3 VBAT - measurement of the battery voltage
36 Channel 9 VBBAT - measurement of the backup battery voltage
39 By using sysfs attributes we can measure the system voltage VDDOUT, the battery
40 charging current ICH, battery temperature TBAT, battery junction temperature
41 TJUNC, battery voltage VBAT and the back up battery voltage VBBAT.
48 The battery voltage is calculated as:
52 The backup battery voltage is calculated as:
63 Temperatures are sampled by a 10 bit ADC. Junction and battery temperatures
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/openbmc/linux/Documentation/power/
H A Dcharger-manager.rst7 Charger Manager provides in-kernel battery charger management that
9 and where each battery may have multiple chargers attached and the userland
14 represents an independent battery with chargers. If there are multiple
27 different information about the battery status. This framework
32 While the battery is being charged and the system is in suspend-to-RAM,
33 we may need to monitor the battery health by looking at the ambient or
34 battery temperature. We can accomplish this by waking up the system
36 monitoring the battery health and tasks, and user processes that are
41 only affects the charging time, but the lifespan of the battery.
50 * Support for premature full-battery event handling
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H A Dpower_supply_class.rst7 Power supply class used to represent battery, UPS, AC or DC power supply
25 typically expected feedback of battery charging/fully charged status and
64 | of battery, this class distinguish these terms. Don't mix them!** |
85 `BATTERY_STATUS_*` values, as defined in battery.h.
94 indicates the power supply (battery or charger) connected
98 represents health of the battery, values corresponds to
99 POWER_SUPPLY_HEALTH_*, defined in battery.h.
102 open circuit voltage of the battery.
106 Maximal/minimal means values of voltages when battery considered
108 between voltage and battery capacity, but some dumb
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/openbmc/linux/drivers/hid/
H A Dhid-logitech-hidpp.c204 struct hidpp_battery battery; member
527 usb_set_wireless_status(intf, hidpp->battery.online ? in hidpp_update_usb_wireless_status()
737 hidpp->battery.level = in hidpp10_query_battery_status()
740 hidpp->battery.status = status; in hidpp10_query_battery_status()
742 hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING || in hidpp10_query_battery_status()
789 hidpp->battery.capacity = response.rap.params[0]; in hidpp10_query_battery_mileage()
791 hidpp->battery.status = status; in hidpp10_query_battery_mileage()
793 hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING || in hidpp10_query_battery_mileage()
810 capacity = hidpp->battery.capacity; in hidpp10_battery_event()
816 level = hidpp->battery.level; in hidpp10_battery_event()
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/openbmc/linux/arch/arm64/boot/dts/qcom/
H A Dsdm845-oneplus-fajita.dts17 battery: battery { label
18 compatible = "simple-battery";
37 monitored-battery = <&battery>;
51 monitored-battery = <&battery>;
H A Dsdm845-oneplus-enchilada.dts17 battery: battery { label
18 compatible = "simple-battery";
33 monitored-battery = <&battery>;
55 monitored-battery = <&battery>;
/openbmc/linux/Documentation/wmi/devices/
H A Ddell-wmi-ddv.rst11 retrieving various system data like battery temperature, ePPID, diagostic data
80 with the first 8 bit being used to specify the battery when using battery-related
92 The data format of many battery-related methods seems to be based on the
93 `Smart Battery Data Specification`, so unknown battery-related methods are
99 Returns the design capacity of the battery in mAh as an u16.
104 Returns the full charge capacity of the battery in mAh as an u16.
109 Returns the manufacture name of the battery as an ASCII string.
114 Returns the manufacture date of the battery as an u16.
127 Returns the serial number of the battery as an u16.
132 Returns the chemistry of the battery as an ASCII string.
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/openbmc/u-boot/arch/arm/dts/
H A Dcros-ec-sbs.dtsi3 * Smart battery dts fragment for devices that use cros-ec-sbs
9 battery: sbs-battery@b { label
10 compatible = "sbs,sbs-battery";
/openbmc/linux/arch/sh/boards/mach-hp6xx/
H A Dhp6xx_apm.c32 int battery, backup, charging, percentage; in hp6x0_apm_get_power_status() local
35 battery = adc_single(ADC_CHANNEL_BATTERY); in hp6x0_apm_get_power_status()
39 percentage = 100 * (battery - HP680_BATTERY_MIN) / in hp6x0_apm_get_power_status()
49 info->time = (2 * battery); in hp6x0_apm_get_power_status()
51 info->ac_line_status = (battery > HP680_BATTERY_AC_ON) ? in hp6x0_apm_get_power_status()
/openbmc/linux/Documentation/ABI/testing/
H A Dsysfs-class-power47 Reports an average IBAT current reading for the battery, over
70 Reports the maximum IBAT current allowed into the battery.
87 battery. This value is not averaged/smoothed.
110 Reports the current TBAT battery temperature reading.
177 Reports the maximum allowed TBAT battery temperature for
194 Reports the minimum allowed TBAT battery temperature for
212 battery, during charging.
229 battery, during discharging.
246 battery. This value is not averaged/smoothed.
267 Fine grain representation of battery capacity.
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H A Dsysfs-class-power-ltc4162l23 means that the battery is discharging.
53 To save battery current, the measurement system is disabled if
54 the battery is the only source of power. This affects all
57 seconds, even when running on battery (as reported by the online
59 when the system runs on battery).
69 The charger will normally drain the battery while inactive,
/openbmc/u-boot/drivers/power/battery/
H A Dbat_trats.c14 static struct battery battery_trats;
19 struct battery *battery = p_bat->bat; in power_battery_charge() local
27 battery->state_of_chrg < 100; k++) { in power_battery_charge()
34 debug(" %d [V]", battery->voltage_uV); in power_battery_charge()
/openbmc/u-boot/doc/
H A DREADME.power-framework38 The problem emerges when we have a device (battery) which conceptually shall be
40 to start charging the battery, use PMIC to reduce board's overall power
42 energy on the battery from FG.
55 e.g. ./drivers/power/battery/trats/bat_trats.c
64 Everything is a power device described by struct pmic. Even battery is
81 1. When hierarchy is not needed (no complex battery charge):
90 2. Complex battery charging.
92 To charge a battery, information from several "abstract" power devices is
95 -- *fg_battery_check - check if battery is not above its limits
97 battery state(voltage and current capacity)
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/openbmc/linux/arch/arm64/boot/dts/rockchip/
H A Drk3326-odroid-go2.dts40 battery: battery { label
41 compatible = "simple-battery";
67 monitored-battery = <&battery>;
H A Drk3566-anbernic-rg353vs.dts20 battery: battery { label
21 compatible = "simple-battery";
82 monitored-battery = <&battery>;
/openbmc/linux/arch/arm/boot/dts/st/
H A Dste-ab8505.dtsi13 <&gpadc 0x08>, /* Main battery voltage */
16 <&gpadc 0x0c>, /* Backup battery voltage */
115 monitored-battery = <&battery>;
132 monitored-battery = <&battery>;
169 monitored-battery = <&battery>;
179 monitored-battery = <&battery>;
H A Dste-ab8500.dtsi14 <&gpadc 0x08>, /* Main battery voltage */
18 <&gpadc 0x0c>, /* Backup battery voltage */
143 monitored-battery = <&battery>;
160 monitored-battery = <&battery>;
197 monitored-battery = <&battery>;
211 monitored-battery = <&battery>;
/openbmc/linux/drivers/usb/misc/
H A Dapple-mfi-fastcharge.c46 struct power_supply *battery; member
193 mfi->battery = power_supply_register(&udev->dev, in mfi_fc_probe()
196 if (IS_ERR(mfi->battery)) { in mfi_fc_probe()
198 err = PTR_ERR(mfi->battery); in mfi_fc_probe()
214 if (mfi->battery) in mfi_fc_disconnect()
215 power_supply_unregister(mfi->battery); in mfi_fc_disconnect()

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