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Input: add regulator haptic driver

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This change adds support for haptic driver controlled by voltage of a
regulator. Userspace can control the device via Force Feedback interface
from input framework.

Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com>
Signed-off-by: Hyunhee Kim <hyunhee.kim@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Jaewon Kim
2014-12-17 10:31:08 -08:00
committed by Dmitry Torokhov
parent 27a560ba1d
commit d64cb71bed
5 changed files with 342 additions and 0 deletions
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21
Documentation/devicetree/bindings/input/regulator-haptic.txt Normal file
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* Regulator Haptic Device Tree Bindings
Required Properties:
- compatible : Should be "regulator-haptic"
- haptic-supply : Power supply to the haptic motor.
[*] refer Documentation/devicetree/bindings/regulator/regulator.txt
- max-microvolt : The maximum voltage value supplied to the haptic motor.
[The unit of the voltage is a micro]
- min-microvolt : The minimum voltage value supplied to the haptic motor.
[The unit of the voltage is a micro]
Example:
haptics {
compatible = "regulator-haptic";
haptic-supply = <&motor_regulator>;
max-microvolt = <2700000>;
min-microvolt = <1100000>;
};