mirror of https://gitee.com/openkylin/linux.git
mfd: max77693: Update DT binding to support haptic
This patch add haptic DT binding documentation and example to support haptic driver in max77693 Multifunction device. Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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@ -27,6 +27,20 @@ Optional properties:
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[*] refer Documentation/devicetree/bindings/regulator/regulator.txt
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- haptic : The MAX77693 haptic device utilises a PWM controlled motor to provide
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users with tactile feedback. PWM period and duty-cycle are varied in
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order to provide the approprite level of feedback.
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Required properties:
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- compatible : Must be "maxim,max77693-hpatic"
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- haptic-supply : power supply for the haptic motor
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[*] refer Documentation/devicetree/bindings/regulator/regulator.txt
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- pwms : phandle to the physical PWM(Pulse Width Modulation) device.
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PWM properties should be named "pwms". And number of cell is different
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for each pwm device.
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To get more informations, please refer to documentaion.
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[*] refer Documentation/devicetree/bindings/pwm/pwm.txt
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Example:
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max77693@66 {
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compatible = "maxim,max77693";
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@ -52,4 +66,11 @@ Example:
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regulator-boot-on;
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};
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};
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haptic {
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compatible = "maxim,max77693-haptic";
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haptic-supply = <&haptic_supply>;
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pwms = <&pwm 0 40000 0>;
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pwm-names = "haptic";
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};
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};
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