linux-kernel - [PATCH RFC 1/4] dt-bindings: input: melfas-mip4: document linux,keycodes property

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Message-Id: <20250503-mip4-touchkey-v1-1-b483cda29a5b@disroot.org>
Date: Sat, 03 May 2025 14:38:27 +0530
From: Kaustabh Chakraborty <kauschluss@...root.org>
To: Sangwon Jee <jeesw@...fas.com>, 
 Dmitry Torokhov <dmitry.torokhov@...il.com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Henrik Rydberg <rydberg@...math.org>
Cc: linux-input@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Kaustabh Chakraborty <kauschluss@...root.org>
Subject: [PATCH RFC 1/4] dt-bindings: input: melfas-mip4: document
 linux,keycodes property

Document the linux,keycodes property. The property values are key codes
which are used in input key events generated by the touchkey device.

Signed-off-by: Kaustabh Chakraborty <kauschluss@...root.org>
---
 Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt b/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt
index b2ab5498e51900e887fab4d9b5239cccccec2ea9..16d1031ee017604ac56109dfbebfce6a05491c60 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt
@@ -7,6 +7,7 @@ Required properties:
 
 Optional properties:
 - ce-gpios: GPIO connected to the CE (chip enable) pin of the chip
+- linux,keycodes: array of keycodes to be reported by touchkeys
 
 Example:
 	i2c@...00000 {
@@ -16,5 +17,6 @@ Example:
 			interrupt-parent = <&gpio>;
 			interrupts = <0 IRQ_TYPE_EDGE_FALLING>;
 			ce-gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
+			linux,keycodes = <KEY_MENU>, <KEY_BACK>;
 		};
 	};

-- 
2.49.0