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mfd: max77693: Update DT binding to support haptic

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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>
This commit is contained in:
Jaewon Kim 2014-09-18 01:40:26 +09:00 committed by Lee Jones
parent d1bafd78fc
commit ee828d0261
1 changed files with 21 additions and 0 deletions
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21
Documentation/devicetree/bindings/mfd/max77693.txt
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@ -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";
};
};