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

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Message-Id: <20251215-rock4d-audio-v2-1-82a61de39b4c@collabora.com>
Date: Mon, 15 Dec 2025 13:29:29 +0100
From: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Alexandre Belloni <alexandre.belloni@...tlin.com>, 
 Heiko Stuebner <heiko@...ech.de>
Cc: 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, 
 Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
Subject: [PATCH v2 1/4] dt-bindings: input: adc-keys: allow
 linux,input-type property

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>
---
 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