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dt-bindings: power: Add Spreadtrum SC2731 charger documentation

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This patch adds the binding documentation for Spreadtrum SC2731 charger
device.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Baolin Wang 2018-09-17 13:03:30 -07:00 committed by Sebastian Reichel
parent 079cdff3d0
commit 8d1f326ab8
1 changed files with 40 additions and 0 deletions
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Documentation/devicetree/bindings/power/supply/sc2731_charger.txt Normal file
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Spreadtrum SC2731 PMIC battery charger binding
Required properties:
- compatible: Should be "sprd,sc2731-charger".
- reg: Address offset of charger register.
- phys: Contains a phandle to the USB phy.
Optional Properties:
- monitored-battery: phandle of battery characteristics devicetree node.
The charger uses the following battery properties:
- charge-term-current-microamp: current for charge termination phase.
- constant-charge-voltage-max-microvolt: maximum constant input voltage.
See Documentation/devicetree/bindings/power/supply/battery.txt
Example:
bat: battery {
compatible = "simple-battery";
charge-term-current-microamp = <120000>;
constant-charge-voltage-max-microvolt = <4350000>;
......
};
sc2731_pmic: pmic@0 {
compatible = "sprd,sc2731";
reg = <0>;
spi-max-frequency = <26000000>;
interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
interrupt-controller;
#interrupt-cells = <2>;
#address-cells = <1>;
#size-cells = <0>;
charger@0 {
compatible = "sprd,sc2731-charger";
reg = <0x0>;
phys = <&ssphy>;
monitored-battery = <&bat>;
};
};