This patch add binding file for charger-manager that this framework enables to control and multiple chargers and to monitor charging event.
Signed-off-by: Chanwoo Choi <[email protected]> Signed-off-by: Kyungmin Park <[email protected]> Signed-off-by: Myungjoo Ham <[email protected]> --- .../devicetree/bindings/power/charger-manager.txt | 106 +++++++++++++++++++++ 1 file changed, 106 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/charger-manager.txt diff --git a/Documentation/devicetree/bindings/power/charger-manager.txt b/Documentation/devicetree/bindings/power/charger-manager.txt new file mode 100644 index 0000000..b22c5526 --- /dev/null +++ b/Documentation/devicetree/bindings/power/charger-manager.txt @@ -0,0 +1,106 @@ +Charger-manager framework + +THe devicetree bindings are for the charger-manager to control charging feature. + +This framework enables to control and multiple chargers and to monitor charging +event in the context of suspend-to-RAM with an interface combining the chargers. + +Required Properties: +- compatible: Must be "charger-manager". +- psy-name: The name of power-supply class for charger-manager. +- polling-mode: Determine which polling mode will be used. +- polling-invertal-ms: Interval in millisecond at which charger-manager will + monitor battery health. +- fullbatt-vchkdrop-ms +- fullbatt-vchkdrop-uV: Check voltage drop afer the battery is fully charged. + If it has dropped more than fullbatt_vchkdrop_uV after + fullbatt_vchkdrop_ms, charger-manager will restart + charging. +- fullbatt-uV: The standard voltage in microvolt for checking + fully charged. If VBATT >= fullbatt_uV, it is assumed to + be full. +- fullbatt-soc: The standard SOC(State Of Charger) for checking + fully charged. If state of Charge >= fullbatt_soc, it is + assumed to be full. +- fullbatt-full-capacity: The standard capacity for checking fully charged. + If full capacity of battery >= fullbatt_full_capacity, + it is assumed to be full. +- battery-present: Specify where information for existance of battery + can be obtained. +- measure-battery-temp: Whether to measure battery or not + +- charging-max-duration-minute: Maximum possible duration for charging. + If whole charging duration exceed 'charging-max-duration + -ms', charger-manager stop charging. +- discharging-max-duration-minute: Maximum possible duration for + discharging with charger cable after full-batt. If + discharging duration exceed 'discharging-max-duration- + ms', charger-manager start charging. +- psy-fuelgauge-name: The name of power-supply for fuel gauge +- io-channels: The iio channel data for ADC +- iio-adc-overheat: The value of the highest ADC for temperature +- iio-adc-cold: The value of the lowest ADC for temperature +- psy-chargers: Arrary of power-supply name for chargers. +- charger-regulators: Array of charger regulators. It include charger cable + data which need cable-name/extcon-name/min-current-uA + max-current-uA. When cable is attached/detached, + charger-manager change current limit of regulator + according to min-current-uA/max-current-uA. + +Examples: adding charger-desc data in dts file + +charger-manager@ { + compatible = "charger-manager"; + + psy-name = "battery"; + + polling-mode = <2>; /* Polling external power */ + polling-interval-ms = <30000>; /* Polling period */ + + fullbatt-vchkdrop-ms = <30000>; + fullbatt-vchkdrop-uV = <150000>; + fullbatt-uV = <420000>; + fullbatt-soc = <100>; + fullbatt-full-capacity = <0>; + + battery-present = <3>; /* CM_CHARGER_STAT */ + + measure-battery-temp; + + charging-max-duration-minute = <360>; + discharging-max-duration-minute = <90>; + + psy-fuelgauge-name = "max17040"; + + io-channels = <&adc 2>; + iio-adc-overheat = <2500>; + iio-adc-cold = <0>; + + psy-chargers { + psy-charger-max14577 { + psy-charger-name = "max14577-charger"; + }; + }; + + charger-regulators { + charger-vinchg1 { + regulator-name = "vinchg1"; + + charger-cables { + cable-USB { + cable-name = "USB"; + extcon-name = "max14577-muic"; + min-current-uA = <475000>; + max-current-uA = <500000>; + }; + + cable-TA { + cable-name = "TA"; + extcon-name = "max14577-muic"; + min-current-uA = <650000>; + max-current-uA = <675000>; + }; + }; + }; + }; +}; -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
