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power: add documentation for ACT8945A's charger DT bindings

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This patch adds documentation for the DT bindings of the charger
subdevice of ACT8945A MFD.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Wenyou Yang 2016-02-15 16:22:04 +08:00 committed by Sebastian Reichel
parent b950762c3b
commit c54e9a2ac2
1 changed files with 35 additions and 0 deletions
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Documentation/devicetree/bindings/power/act8945a-charger.txt Normal file
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Device-Tree bindings for charger of Active-semi ACT8945A Multi-Function Device
Required properties:
- compatible: "active-semi,act8945a", please refer to ../mfd/act8945a.txt.
- active-semi,chglev-gpios: charge current level phandle with args
as described in ../gpio/gpio.txt.
Optional properties:
- active-semi,check-battery-temperature: boolean to check the battery
temperature or not.
- active-semi,input-voltage-threshold-microvolt: unit: mV;
Specifies the charger's input over-voltage threshold value;
The value can be: 6600, 7000, 7500, 8000; default: 6600
- active-semi,precondition-timeout: unit: minutes;
Specifies the charger's PRECONDITION safety timer setting value;
The value can be: 40, 60, 80, 0; If 0, it means to disable this timer;
default: 40.
- active-semi,total-timeout: unit: hours;
Specifies the charger's total safety timer setting value;
The value can be: 3, 4, 5, 0; If 0, it means to disable this timer;
default: 3.
Example:
pmic@5b {
compatible = "active-semi,act8945a";
reg = <0x5b>;
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_charger_chglev>;
active-semi,chglev-gpios = <&pioA 12 GPIO_ACTIVE_HIGH>;
active-semi,input-voltage-threshold-microvolt = <6600>;
active-semi,precondition-timeout = <40>;
active-semi,total-timeout = <3>;
};