This patch add haptic DT binding documentation and example
to support haptic driver in max77693 Multifunction device.
Signed-off-by: Jaewon Kim <jaewon02.kim@xxxxxxxxxxx>
Acked-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
---
Documentation/devicetree/bindings/mfd/max77693.txt | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/max77693.txt b/Documentation/devicetree/bindings/mfd/max77693.txt
index 11921cc..d178b9e 100644
--- a/Documentation/devicetree/bindings/mfd/max77693.txt
+++ b/Documentation/devicetree/bindings/mfd/max77693.txt
@@ -27,6 +27,17 @@ Optional properties:
[*] refer Documentation/devicetree/bindings/regulator/regulator.txt
+- haptic : The haptic of max77693 have to be instantiated under subnod
+ named "haptic" using the following haptic format in example.
+ Haptic sensation from motor can be changed by changing a period cycle in pwms.
+
+ Required properties:
+ - compatible : Must be "maxim,max77693-hpatic"
+ - haptic-supply : power supply for haptic motor
+ [*] refer Documentation/devicetree/bindings/regulator/regulator.txt
+ - pwms : phandle to the physical PWM device,
+ [*] refer Documentation/devicetree/bindings/pwm/pwm.txt
+
Example:
max77693@66 {
compatible = "maxim,max77693";
@@ -52,4 +63,11 @@ Example:
regulator-boot-on;
};
};
+
+ haptic {
+ compatible = "maxim,max77693-haptic";
+ haptic-supply = <&haptic_supply>;
+ pwms = <&pwm 0 40000 0>;
+ pwm-names = "haptic";
+ };
};
--
1.7.9.5
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