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Date:	Mon, 16 May 2016 09:50:58 -0700
From:	Grant Grundler <grundler@...omium.org>
To:	Rob Herring <robh@...nel.org>
Cc:	Grant Grundler <grundler@...omium.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	devicetree <devicetree@...r.kernel.org>,
	linux-input <linux-input@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Hung-yu Wu <hywu@...gle.com>,
	Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Grant Likely <grant.likely@...aro.org>
Subject: Re: [PATCH] dt: add Atmel Captouch bindings

On Sat, May 14, 2016 at 7:52 AM, Rob Herring <robh@...nel.org> wrote:
> On Tue, May 10, 2016 at 07:07:48PM -0700, Grant Grundler wrote:
>> From: Daniel Hung-yu Wu <hywu@...gle.com>
>>
>> Add binding for Atmel Capacitive Touch Button device.
>>
>> Signed-off-by: Daniel Hung-yu Wu <hywu@...gle.com>
>> Signed-off-by: Grant Grundler <grundler@...omium.org>
>> ---
>>  .../devicetree/bindings/input/atmel,captouch.txt   | 34 ++++++++++++++++++++++
>>  1 file changed, 34 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/input/atmel,captouch.txt
>>
>> I haven't posted the corresponding device driver and dtsi changes yet but will shortly.
>>
>> V2: split Documentation/devicetree/bindings from driver patch
>>     rename "atmel,atmegaxx_captouch" to "atmel,captouch" since it's irrelevant
>>            which controller implements the register set/controller.
>
> Is there any notion of firmware versions though?

There currently is not. This is something we need to add - future patch.

>
>>
>> V1: posted https://lkml.org/lkml/2016/5/3/613
>>
>> diff --git a/Documentation/devicetree/bindings/input/atmel,captouch.txt b/Documentation/devicetree/bindings/input/atmel,captouch.txt
>> new file mode 100644
>> index 0000000..405d287
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/input/atmel,captouch.txt
>> @@ -0,0 +1,34 @@
>> +Device tree bindings for Atmel AtmegaXX capacitive touch sensor
>> +
>> +The node for this device must be a child of a I2C controller node, as the
>> +device communicates via I2C.
>> +
>> +Required properties:
>> +
>> +     compatible:     Must be "atmel,captouch".
>> +     reg:            The I2C slave address of the device.
>> +     interrupts:     Property describing the interrupt line the device
>> +                     is connected to. The device only has one interrupt
>> +                     source.
>> +     linux,keycodes: Specifies an array of numeric keycode values to
>> +                     be used for reporting button presses. The array can
>> +                     contain up to 8 entries.
>> +
>> +Optional properties:
>> +
>> +     autorepeat:     Enables the Linux input system's autorepeat
>> +                     feature on the input device.
>> +
>> +Example:
>> +
>> +     atmel_captouch@51 {
>
> No underscores in node names please.

Aaahh! Sorry! you told me that before. Will post V3 with dash in node name.

cheers,
grant

>
>> +             compatible = "atmel,captouch";
>> +             reg = <0x51>;
>> +             interrupt-parent = <&tlmm>;
>> +             interrupts = <67 IRQ_TYPE_EDGE_FALLING>;
>> +             linux,keycodes = <BTN_0>, <BTN_1>,
>> +                     <BTN_2>, <BTN_3>,
>> +                     <BTN_4>, <BTN_5>,
>> +                     <BTN_6>, <BTN_7>;
>> +             autorepeat;
>> +     };
>> --
>> 2.1.2
>>

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