From: Jaewon Kim Date: Wed, 17 Sep 2014 16:40:26 +0000 (+0900) Subject: mfd: max77693: Update DT binding to support haptic X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=ee828d02611f325a70ef6a3c1fd2dd1eb3bc9704;p=openwrt%2Fstaging%2Fblogic.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 Acked-by: Chanwoo Choi Signed-off-by: Lee Jones --- diff --git a/Documentation/devicetree/bindings/mfd/max77693.txt b/Documentation/devicetree/bindings/mfd/max77693.txt index 11921cc417bf..01e9f30fe678 100644 --- a/Documentation/devicetree/bindings/mfd/max77693.txt +++ b/Documentation/devicetree/bindings/mfd/max77693.txt @@ -27,6 +27,20 @@ Optional properties: [*] refer Documentation/devicetree/bindings/regulator/regulator.txt +- haptic : The MAX77693 haptic device utilises a PWM controlled motor to provide + users with tactile feedback. PWM period and duty-cycle are varied in + order to provide the approprite level of feedback. + + Required properties: + - compatible : Must be "maxim,max77693-hpatic" + - haptic-supply : power supply for the haptic motor + [*] refer Documentation/devicetree/bindings/regulator/regulator.txt + - pwms : phandle to the physical PWM(Pulse Width Modulation) device. + PWM properties should be named "pwms". And number of cell is different + for each pwm device. + To get more informations, please refer to documentaion. + [*] refer Documentation/devicetree/bindings/pwm/pwm.txt + Example: max77693@66 { compatible = "maxim,max77693"; @@ -52,4 +66,11 @@ Example: regulator-boot-on; }; }; + + haptic { + compatible = "maxim,max77693-haptic"; + haptic-supply = <&haptic_supply>; + pwms = <&pwm 0 40000 0>; + pwm-names = "haptic"; + }; };