On Tue, 16 Sep 2014, Jaewon Kim wrote:
> 2014년 09월 16일 08:00에 Lee Jones 이(가) 쓴 글:
> >On Thu, 11 Sep 2014, Jaewon Kim wrote:
> >
> >>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
> >Perhaps a description as to what "The haptic" is might be handy?
> Ok, I will add description about haptic.
>
> >
> >s/have/has
> >
> >s/subnod/subnode
> >
> >What do you mean by "under" a subnode? Do you mean "as a" subnode?
I see what you did here now. You copied this from the discription
above. That will also need to be changed.
> >>+ named "haptic" using the following haptic format in example.
> >What is the "haptic format"? It just looks like a normal node to me.
> >
> >>+ Haptic sensation from motor can be changed by changing a period cycle in pwms.
> >Is "Haptic sensation" a technical term?
> >
> >s/from motor/from a motor/
> >
> >s/changed by changing/changed by varying/
> >
> >s/period cycle/duty cycle/
> >
> >s/in pwms/in the pwms property/
> How is it if I change in this way?
>
> haptic : Referring to the term Haptic, It is the use of advanced
> vibration patterns
> and waveforms to convey information to a user or operator.
>
> MAX77693 uses PWM and MOTOR in order to give Haptic.
> The Haptic from a motor can be changed by varying a period/duty
> cycle in pwms.
Hmm... How about:
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 haptic motor
> >s/for haptic/for the haptic/
> >
> >>+ [*] refer Documentation/devicetree/bindings/regulator/regulator.txt
> >>+ - pwms : phandle to the physical PWM device,
> >It's not just the phandle though is it?
> Do you want more description?
Yes please.
> Or it mean the wrong?
>
> >
> >>+ [*] 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";
> >>+ };
> >> };
>
> Thank you for feedback.
> And plz review "[PATCH v4 3/4] mfd: max77693: add haptic
> of_compatible in mfd_cell".
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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