From mboxrd@z Thu Jan  1 00:00:00 1970
From: Luca Weiss <luca@z3ntu.xyz>
Subject: Re: [PATCH v3 1/3] dt-bindings: input: add GPIO controllable vibrator
Date: Wed, 17 Apr 2019 18:02:27 +0200
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References: <20190412150625.28384-1-luca@z3ntu.xyz>
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To: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Mauro Carvalho Chehab <mchehab+samsung@kernel.org>, Pascal PAILLET-LME <p.paillet@st.com>, Coly Li <colyli@suse.de>, Lee Jones <lee.jones@linaro.org>, Xiaotong Lu <xiaotong.lu@spreadtrum.com>, Brian Masney <masneyb@onstation.org>, Rob Herring <robh@kernel.org>, Baolin Wang <baolin.wang@linaro.org>, David Brown <david.brown@linaro.org>, "open list:ARM/QUALCOMM SUPPORT" <linux-arm-msm@vger.kernel.org>, "open list:INPUT (KEYBOARD, MOUSE, JOYSTICK, TOUCHSCREEN)..." <linux-input@vger.kernel.org>, "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@vger.kernel.org>, open list <linux-kernel@vger.kernel.org>
List-Id: devicetree@vger.kernel.org

On Freitag, 12. April 2019 17:06:23 CEST Luca Weiss wrote:
> Provide a simple driver for GPIO controllable vibrators.
> It will be used by the Fairphone 2.
> 
> Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
> ---
>  .../bindings/input/gpio-vibrator.txt          | 20 +++++++++++++++++++
>  1 file changed, 20 insertions(+)
>  create mode 100644
> Documentation/devicetree/bindings/input/gpio-vibrator.txt
> 
> diff --git a/Documentation/devicetree/bindings/input/gpio-vibrator.txt
> b/Documentation/devicetree/bindings/input/gpio-vibrator.txt new file mode
> 100644
> index 000000000000..93e5a8e7622d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/gpio-vibrator.txt
> @@ -0,0 +1,20 @@
> +* GPIO vibrator device tree bindings
> +
> +Registers a GPIO device as vibrator, where the vibration motor just has the
> +capability to turn on or off. If the device is connected to a pwm, you
> should +use the pwm-vibrator driver instead.
> +
> +Required properties:
> +- compatible: should contain "gpio-vibrator"
> +- enable-gpios: Should contain a GPIO handle
> +
> +Optional properties:
> +- vcc-supply: Phandle for the regulator supplying power
> +
> +Example from Fairphone 2:
> +
> +vibrator {
> +	compatible = "gpio-vibrator";
> +	enable-gpios = <&msmgpio 86 GPIO_ACTIVE_HIGH>;
> +	vcc-supply = <&pm8941_l18>;
> +};

I see that the yaml based device tree binding docs seem to be the new hotness? 
Is there any "policy" / preference about new drivers?

Luca