linux-kernel - Re: [PATCH v2 1/4] dt-bindings: input: adc-keys: allow linux,input-type property

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Message-ID: <202512160847455082a875@mail.local>
Date: Tue, 16 Dec 2025 09:47:45 +0100
From: Alexandre Belloni <alexandre.belloni@...tlin.com>
To: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>, kernel@...labora.com,
	linux-input@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH v2 1/4] dt-bindings: input: adc-keys: allow
 linux,input-type property

On 15/12/2025 13:29:29+0100, Nicolas Frattaroli wrote:
> adc-keys, unlike gpio-keys, does not allow linux,input-type as a valid
> property. This makes it impossible to model devices that have ADC inputs
> that should generate switch events.
> 
> Add the property to the binding with the same default as gpio-keys.
> 
> Reviewed-by: Heiko Stuebner <heiko@...ech.de>
> Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@...tlin.com>

> ---
>  Documentation/devicetree/bindings/input/adc-keys.yaml | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/input/adc-keys.yaml b/Documentation/devicetree/bindings/input/adc-keys.yaml
> index 7aa078dead37..e372ebc23d16 100644
> --- a/Documentation/devicetree/bindings/input/adc-keys.yaml
> +++ b/Documentation/devicetree/bindings/input/adc-keys.yaml
> @@ -42,6 +42,9 @@ patternProperties:
>  
>        linux,code: true
>  
> +      linux,input-type:
> +        default: 1  # EV_KEY
> +
>        press-threshold-microvolt:
>          description:
>            Voltage above or equal to which this key is considered pressed. No
> 
> -- 
> 2.52.0
> 

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com