| /Linux-v5.10/drivers/acpi/ |
| D | battery.c | 3 * battery.c - ACPI Battery Driver (Revision: 2.0)
30 #include <acpi/battery.h>
38 #define ACPI_BATTERY_DEVICE_NAME "Battery"
40 /* Battery power unit: 0 means mW, 1 means mA */
49 ACPI_MODULE_NAME("battery");
53 MODULE_DESCRIPTION("ACPI Battery Driver");
73 /* Lists of PMIC ACPI HIDs with an (often better) native battery driver */
84 is running on battery or not. When mAh is the unit, most
139 static inline int acpi_battery_present(struct acpi_battery *battery) in acpi_battery_present() argument
141 return battery->device->status.battery_present; in acpi_battery_present()
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| D | sbs.c | 3 * sbs.c - ACPI Smart Battery System Driver ($Revision: 2.0 $)
22 #include <acpi/battery.h>
30 #define ACPI_SBS_DEVICE_NAME "Smart Battery System"
38 MODULE_DESCRIPTION("Smart Battery System ACPI interface driver");
90 struct acpi_battery battery[MAX_SBS_BAT]; member
100 static int acpi_battery_get_state(struct acpi_battery *battery);
110 static inline int acpi_battery_vscale(struct acpi_battery *battery) in acpi_battery_vscale() argument
112 return battery_scale((battery->spec & 0x0f00) >> 8); in acpi_battery_vscale()
115 static inline int acpi_battery_ipscale(struct acpi_battery *battery) in acpi_battery_ipscale() argument
117 return battery_scale((battery->spec & 0xf000) >> 12); in acpi_battery_ipscale()
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| /Linux-v5.10/drivers/power/supply/ |
| D | Kconfig | 45 battery class devices.
48 tristate "Generic battery support using IIO"
51 Say Y here to enable support for the generic battery driver
55 tristate "MAX8925 battery charger support"
58 Say Y here to enable support for the battery charger in the Maxim
62 tristate "WM831X backup battery charger support"
65 Say Y here to enable support for the backup battery charger
88 tristate "Marvell 88PM860x battery driver"
91 Say Y here to enable battery monitor for Marvell 88PM860x chip.
94 tristate "ADP5061 battery charger driver"
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| D | rt5033_battery.c | 17 struct rt5033_battery *battery = i2c_get_clientdata(client); in rt5033_battery_get_capacity() local
20 regmap_read(battery->regmap, RT5033_FUEL_REG_SOC_H, &msb); in rt5033_battery_get_capacity()
27 struct rt5033_battery *battery = i2c_get_clientdata(client); in rt5033_battery_get_present() local
30 regmap_read(battery->regmap, RT5033_FUEL_REG_CONFIG_L, &val); in rt5033_battery_get_present()
38 struct rt5033_battery *battery = i2c_get_clientdata(client); in rt5033_battery_get_watt_prop() local
60 regmap_read(battery->regmap, regh, &msb); in rt5033_battery_get_watt_prop()
61 regmap_read(battery->regmap, regl, &lsb); in rt5033_battery_get_watt_prop()
72 struct rt5033_battery *battery = power_supply_get_drvdata(psy); in rt5033_battery_get_property() local
78 val->intval = rt5033_battery_get_watt_prop(battery->client, in rt5033_battery_get_property()
82 val->intval = rt5033_battery_get_present(battery->client); in rt5033_battery_get_property()
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| D | ingenic-battery.c | 3 * Battery driver for the Ingenic JZ47xx SoCs
6 * based on drivers/power/supply/jz4740-battery.c
20 struct power_supply *battery; member
59 * based on the battery's max voltage.
136 bat->channel = devm_iio_channel_get(dev, "battery"); in ingenic_battery_probe()
141 desc->name = "jz-battery"; in ingenic_battery_probe()
149 bat->battery = devm_power_supply_register(dev, desc, &psy_cfg); in ingenic_battery_probe()
150 if (IS_ERR(bat->battery)) in ingenic_battery_probe()
151 return dev_err_probe(dev, PTR_ERR(bat->battery), in ingenic_battery_probe()
152 "Unable to register battery\n"); in ingenic_battery_probe()
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| /Linux-v5.10/Documentation/devicetree/bindings/power/supply/ |
| D | battery.yaml | 4 $id: http://devicetree.org/schemas/power/supply/battery.yaml#
7 title: Battery Characteristics
13 The devicetree battery node provides static battery characteristics.
15 on a fuel gauge chip. The battery node should be used where there is
18 Upstream dts files should not include battery nodes, unless the battery
21 behavior should a replacement that changes the battery type occur
24 Battery properties are named, where possible, for the corresponding elements
28 The phandle's property should be named "monitored-battery".
32 const: simple-battery
35 description: battery over-voltage limit
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| D | ingenic,battery.yaml | 5 $id: "http://devicetree.org/schemas/power/supply/ingenic,battery.yaml#"
8 title: Ingenic JZ47xx battery bindings
16 - const: ingenic,jz4740-battery
19 - ingenic,jz4725b-battery
20 - ingenic,jz4770-battery
21 - const: ingenic,jz4740-battery
27 const: battery
29 monitored-battery:
31 phandle to a "simple-battery" compatible node.
34 in battery.yaml, with the following properties being required:
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| D | charger-manager.txt | 8 - cm-fuel-gauge : name of battery fuel gauge
20 - cm-name : charger manager's name (default : "battery")
25 - cm-battery-stat : battery status - 0 for battery always present, 1 for no
26 battery, 2 to check presence via fuel gauge, or 3 to check presence
29 - cm-fullbatt-voltage : voltage (in uV) of full battery
30 - cm-fullbatt-soc : state of charge to consider as full battery
31 - cm-fullbatt-capacity : capcity (in uAh) to consider as full battery
33 - cm-battery-* : threshold battery temperature for charging
34 -cold : critical cold temperature of battery for charging
36 -hot : critical hot temperature of battery for charging
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| D | sbs,sbs-battery.yaml | 4 $id: http://devicetree.org/schemas/power/supply/sbs,sbs-battery.yaml#
7 title: SBS compliant battery
13 Battery compatible with the smart battery system specifications
24 - sbs,sbs-battery
26 - const: sbs,sbs-battery
44 sbs,battery-detect-gpios:
46 GPIO which signals battery detection. If this is not supplied, the bus
47 needs to be polled to detect the battery.
55 the bus. Also some SBS battery fuel gauges are known to have a buggy multi-
73 battery@b {
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| D | bq24190.txt | 1 TI BQ24190 Li-Ion Battery Charger
13 - monitored-battery: phandle of battery characteristics devicetree node
14 The charger uses the following battery properties:
16 phase (typically 20% of battery capacity).
18 battery voltage is above recharge threshold, and the current is below
19 this setting (typically 10% of battery capacity).
20 See also Documentation/devicetree/bindings/power/supply/battery.txt
21 - ti,system-minimum-microvolt: when power is connected and the battery is below
37 bat: battery {
38 compatible = "simple-battery";
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| D | rohm,bd99954.yaml | 7 title: ROHM BD99954 Battery charger
15 The ROHM BD99954 is a Battery Management LSI for 1-4 cell Lithium-Ion
16 secondary battery intended to be used in space-constraint equipment such
18 provides a Dual-source Battery Charger, two port BC1.2 detection and a
19 Battery Monitor.
26 # The battery charging profile of BD99954.
29 # Curve (2) represents battery voltage.
36 # Then constant voltage (CV) phase (after the battery voltage has reached
68 # The charger uses the following battery properties
91 # when battery voltage exceeds this limit voltage (3 in above chart)
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| D | axp20x_battery.txt | 1 AXP20x and AXP22x battery power supply
5 "x-powers,axp209-battery-power-supply"
6 "x-powers,axp221-battery-power-supply"
7 "x-powers,axp813-battery-power-supply"
11 The supported devices can read the battery voltage, charge and discharge
12 currents of the battery by reading ADC channels from the ADC.
17 battery_power_supply: battery-power-supply {
18 compatible = "x-powers,axp209-battery-power-supply";
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| D | cw2015_battery.yaml | 7 title: Battery driver for CW2015 shuntless fuel gauge by CellWise.
13 The driver can utilize information from a simple-battery linked via a
14 phandle in monitored-battery. If specified the driver uses the
15 charge-full-design-microamp-hours property of the battery.
24 cellwise,battery-profile:
26 This property specifies characteristics of the battery used. The format
41 Specifies supplies used for charging the battery connected to this gauge
46 monitored-battery:
48 Specifies the phandle of a simple-battery connected to this gauge
66 cellwise,battery-profile = /bits/ 8 <
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| D | rx51-battery.txt | 1 Binding for Nokia N900 battery
3 The Nokia N900 battery status can be read via the TWL4030's A/D converter.
7 * "nokia,n900-battery"
12 * "bsi" - The ADC channel for battery size identification
13 * "vbat" - The ADC channel to measure the battery voltage
17 battery: n900-battery {
18 compatible = "nokia,n900-battery";
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| D | lego_ev3_battery.txt | 1 LEGO MINDSTORMS EV3 Battery
4 LEGO MINDSTORMS EV3 has some built-in capability for monitoring the battery.
5 It uses 6 AA batteries or a special Li-ion rechargeable battery pack that is
6 detected by a key switch in the battery compartment.
9 - compatible: Must be "lego,ev3-battery"
12 - rechargeable-gpios: phandle to the rechargeable battery indication gpio
16 battery {
17 compatible = "lego,ev3-battery";
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| D | sbs,sbs-manager.txt | 16 four smart battery devices at address 0xb. The driver actually implements this
36 battery@b {
37 compatible = "ti,bq2060", "sbs,sbs-battery";
39 sbs,battery-detect-gpios = <&batman 1 1>;
48 battery@b {
49 compatible = "ti,bq2060", "sbs,sbs-battery";
51 sbs,battery-detect-gpios = <&batman 2 1>;
60 battery@b {
61 compatible = "ti,bq2060", "sbs,sbs-battery";
63 sbs,battery-detect-gpios = <&batman 3 1>;
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| D | sc2731_charger.txt | 1 Spreadtrum SC2731 PMIC battery charger binding
9 - monitored-battery: phandle of battery characteristics devicetree node.
10 The charger uses the following battery properties:
13 See Documentation/devicetree/bindings/power/supply/battery.txt
17 bat: battery {
18 compatible = "simple-battery";
38 monitored-battery = <&bat>;
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| D | sc27xx-fg.txt | 11 - battery-detect-gpios: GPIO for battery detection.
18 - monitored-battery: Phandle of battery characteristics devicetree node.
19 See Documentation/devicetree/bindings/power/supply/battery.txt
23 bat: battery {
24 compatible = "simple-battery";
51 battery-detect-gpios = <&pmic_eic 9 GPIO_ACTIVE_HIGH>;
56 monitored-battery = <&bat>;
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| /Linux-v5.10/Documentation/power/ |
| D | charger-manager.rst | 7 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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| D | power_supply_class.rst | 7 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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| /Linux-v5.10/Documentation/devicetree/bindings/power/supply/ab8500/ |
| D | fg.txt | 10 main-charger, usb-combo-charger and battery-temperature-monitoring.
16 - battery = Shall be battery specific information
20 battery = <&ab8500_battery>;
27 'battery technology type' used.
31 A boolean value indicating thermistor interface to battery
34 'btemp' and 'batctrl' are the pins interfaced for battery temperature
36 coefficient) resister is interfaced external to battery whereas
37 'batctrl' pin is used when NTC resister is internal to battery.
43 indicates: NTC resister is internal to battery, 'batctrl' is used
47 NTC resister is external to battery and 'btemp' signal is used
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| /Linux-v5.10/Documentation/ABI/testing/ |
| D | sysfs-class-power | 37 Valid values: "Battery", "UPS", "Mains", "USB", "Wireless"
39 **Battery and USB properties**
45 Battery:
47 Reports an average IBAT current reading for the battery, over
68 Battery:
70 Reports the maximum IBAT current allowed into the battery.
84 Battery:
87 battery. This value is not averaged/smoothed.
108 Battery:
110 Reports the current TBAT battery temperature reading.
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| /Linux-v5.10/Documentation/devicetree/bindings/rtc/ |
| D | rtc-palmas.txt | 10 - 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;
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| /Linux-v5.10/include/linux/mfd/ |
| D | abx500.h | 31 /* Battery driver related data */
33 * ADC for the battery thermistor.
34 * When using the ABx500_ADC_THERM_BATCTRL the battery ID resistor is combined
35 * with a NTC resistor to both identify the battery and to measure its
37 * identify the battery and to read its temperature.
46 * be used in battery packs that combines the identification resistor with a
48 * @temp: battery pack temperature in Celsius
81 * @lowbat_threshold: Low battery threshold, in mV
82 * @overbat_threshold: Over battery threshold, in mV
91 * battery full while in maintenance, in per cent
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| /Linux-v5.10/Documentation/hwmon/ |
| D | da9052.rst | 27 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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