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    Subject[PATCH v7 5/5] Documentation: Add device tree bindings document for max77843
    Date
    Add document describing device tree bindings for max77843 MFD.
    Drivers: MFD core, regulator, extcon, charger and fuelgauge.

    Cc: Rob Herring <robh+dt@kernel.org>
    Cc: Pawel Moll <pawel.moll@arm.com>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
    Cc: Kumar Gala <galak@codeaurora.org>
    Cc: Lee Jones <lee.jones@linaro.org>
    Cc: Sebastian Reichel <sre@kernel.org>
    Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>

    Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
    Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
    ---
    Documentation/devicetree/bindings/mfd/max77843.txt | 110 ++++++++++++++++++++
    1 file changed, 110 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/mfd/max77843.txt

    diff --git a/Documentation/devicetree/bindings/mfd/max77843.txt b/Documentation/devicetree/bindings/mfd/max77843.txt
    new file mode 100644
    index 0000000..76426ca
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/mfd/max77843.txt
    @@ -0,0 +1,110 @@
    +Maxim MAX77843 multi-function device
    +
    +MAX77843 is a Multi-Function Device with the following submodules:
    +- PMIC : 2 SAFEOUT LDOs for USB device
    +- CHARGER : Li+ battery charger with Fuel Gauge
    +- MUIC : Micro USB Interface Controller
    +- HAPTIC : Motor Controller for tactile feedback
    +
    +It is interfaced to host controller using I2C.
    +
    +Required properties:
    +- compatible : Must be "maxim,max77843".
    +- reg : I2C slave address of PMIC block.
    +- interrupts : I2C line for main SoCs.
    +- interrupt-parent : The parent of interrupt controller.
    +
    +Optional properties:
    +- regulators : The regulators of max77843 have to be instantiated under subnode
    + named "regulators" using the following format.
    +
    + [*]refer : Documentation/devicetree/bindings/regulator/regulator.txt
    +
    + regulators {
    + SAFEOUT {
    + regulator-name = "SAFEOUT";
    + };
    + }
    +
    + List of valid regulator names:
    + - SAFEOUT1, SAFEOUT2, CHARGER.
    +
    +- max77843-muic : This properties used by extcon consumers.
    + Required properties:
    + - compatible : Must be "maxim,max77842-muic".
    +
    +- max77843-charger : There battery charger of MAX77843 have to be instantiated
    + under sub-node named "max77843-charger" using the following format.
    + Required properties:
    + - compatible : Must be "maxim,max77842-charger".
    + - maxim,fast-charge-uamp : Fast charge current levels are
    + 100 mA to 3150 mA programmed by I2C per 100 mA.
    + - maxim,top-off-uamp : Top off current threshold levels are
    + 125 mA to 650 mA programmed by I2C per 75 mA.
    + - maxim,input-uamp-limit : Input current limit levels are
    + 100 mA to 3533 mA programmed by I2C per 33 mA.
    +
    +- max77843-fuelgauge : There fuelgauge of MAX77843 have to be instantiated
    + under sub-node named "max77843-fuelgauge" using the following format.
    + Required properties:
    + - compatible : Must be "maxim,max77842-fuelgauge".
    +
    +- max77843-haptic : The MAX77843 haptic device provides the tactile feedback
    + to the user by using PWM(Pulse Width Modulation) signal.
    + Required properties:
    + - compatible : Must be "maxim,max77843-hpatic".
    + - haptic-supply : Power supply for the haptic motor.
    + [*] refer Documentation/devicetree/
    + bindings/regulator/regulator.txt
    + - pwms : phandle for the PWM(Pulse Width Modulation) device.
    + PWM properties should be named "pwms".
    + [*] refer Documentation/devicetree/bindings/pwm/pwm.txt
    +
    +Example:
    + max77843@66 {
    + compatible = "samsung,max77843";
    + reg = <0x66>;
    + interrupt-parent = <&gpa1>;
    + interrupts = <5 2>;
    +
    + regulators {
    + SAFEOUT1 {
    + regulator-name = "SAFEOUT1";
    + regulator-min-microvolt = <3300000>;
    + regulator-max-microvolt = <4950000>;
    + };
    + SAFEOUT2 {
    + regulator-name = "SAFEOUT2";
    + regulator-min-microvolt = <3300000>;
    + regulator-max-microvolt = <4950000>;
    + };
    + CHARGER {
    + regulator-name = "CHARGER";
    + regulator-min-microamp = <100000>;
    + regulator-max-microamp = <3150000>;
    + };
    + };
    +
    + haptic {
    + compatible = "maxim,max77843-haptic";
    + haptic-supply = <&haptic_supply>;
    + pwms = <&pwm 0 40000 0>;
    + pwm-names = "haptic";
    + };
    +
    + max77843-muic {
    + compatible = "maxim,max77843-muic";
    + };
    +
    + max77843-charger {
    + compatible = "maxim,max77843-charger";
    + maxim,fast-charge-uamp = <450000>;
    + maxim,top-off-uamp = <125000>;
    + maxim,input-uamp-limit = <500000>;
    + };
    +
    + max77843-fuelgauge {
    + compatible = "maxim,max77843-fuelgauge";
    + };
    +
    + };
    --
    1.7.9.5


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