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Commit 97d15966 authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Sebastian Reichel
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devicetree: power/mfd: max77693: Document new bindings for charger 



Document new device tree bindings for Maxim 77693 charger driver.

Signed-off-by: default avatarKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: default avatarSebastian Reichel <sre@kernel.org>
parent e0291285

Documentation/devicetree/bindings/mfd/max77693.txt

+45 −0
Original line number Diff line number Diff line
@@ -41,6 +41,41 @@ Optional properties: 
	 To get more informations, please refer to documentaion.

	[*] refer Documentation/devicetree/bindings/pwm/pwm.txt



- charger : Node configuring the charger driver.

  If present, required properties:

  - compatible : Must be "maxim,max77693-charger".



  Optional properties (if not set, defaults will be used):

  - maxim,constant-microvolt : Battery constant voltage in uV. The charger

    will operate in fast charge constant current mode till battery voltage

    reaches this level. Then the charger will switch to fast charge constant

    voltage mode. Also vsys (system voltage) will be set to this value when

    DC power is supplied but charger is not enabled.

    Valid values: 3650000 - 4400000, step by 25000 (rounded down)

    Default: 4200000



  - maxim,min-system-microvolt : Minimal system voltage in uV.

    Valid values: 3000000 - 3700000, step by 100000 (rounded down)

    Default: 3600000



  - maxim,thermal-regulation-celsius : Temperature in Celsius for entering

    high temperature charging mode. If die temperature exceeds this value

    the charging current will be reduced by 105 mA/Celsius.

    Valid values: 70, 85, 100, 115

    Default: 100



  - maxim,battery-overcurrent-microamp : Overcurrent protection threshold

    in uA (current from battery to system).

    Valid values: 2000000 - 3500000, step by 250000 (rounded down)

    Default: 3500000



  - maxim,charge-input-threshold-microvolt : Threshold voltage in uV for

    triggering input voltage regulation loop. If input voltage decreases

    below this value, the input current will be reduced to reach the

    threshold voltage.

    Valid values: 4300000, 4700000, 4800000, 4900000

    Default: 4300000



Example:

	max77693@66 {

		compatible = "maxim,max77693";
@@ -73,4 +108,14 @@ Example: 
			pwms = <&pwm 0 40000 0>;

			pwm-names = "haptic";

		};



		charger {

			compatible = "maxim,max77693-charger";



			maxim,constant-microvolt = <4200000>;

			maxim,min-system-microvolt = <3600000>;

			maxim,thermal-regulation-celsius = <75>;

			maxim,battery-overcurrent-microamp = <3000000>;

			maxim,charge-input-threshold-microvolt = <4300000>;

		};

	};