linux-kernel - Re: [PATCH RESEND v5 3/3] mfd: max77693: Update DT binding to support haptic

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Message-ID: <20141007091603.GP25331@lee--X1>
Date:	Tue, 7 Oct 2014 10:16:03 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Jaewon Kim <jaewon02.kim@...sung.com>
Cc:	Chanwoo Choi <cw00.choi@...sung.com>, linux-kernel@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: Re: [PATCH RESEND v5 3/3] mfd: max77693: Update DT binding to
 support haptic

On Wed, 01 Oct 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@...sung.com>
> Acked-by: Chanwoo Choi <cw00.choi@...sung.com>
> ---
>  Documentation/devicetree/bindings/mfd/max77693.txt |   21 ++++++++++++++++++++
>  1 file changed, 21 insertions(+)

Applied, thanks.

> diff --git a/Documentation/devicetree/bindings/mfd/max77693.txt b/Documentation/devicetree/bindings/mfd/max77693.txt
> index 11921cc..01e9f30 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";
> +		};
>  	};

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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