linux-kernel - [PATCH v5 1/2] dt-bindings: input: Add Nuvoton MA35D1 keypad

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Message-Id: <20250108011812.627-2-mjchen0829@gmail.com>
Date: Wed,  8 Jan 2025 01:18:11 +0000
From: Ming-Jen <mjchen0829@...il.com>
To: linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-input@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	mjchen0829@...il.com,
	peng.fan@....com,
	arnd@...db.de,
	sudeep.holla@....com,
	conor+dt@...nel.org,
	krzk+dt@...nel.org,
	robh@...nel.org,
	dmitry.torokhov@...il.com
Subject: [PATCH v5 1/2] dt-bindings: input: Add Nuvoton MA35D1 keypad

From: Ming-jen Chen <mjchen0829@...il.com>

Add YAML bindings for MA35D1 SoC keypad.

Signed-off-by: Ming-jen Chen <mjchen0829@...il.com>
---
 .../bindings/input/nuvoton,ma35d1-keypad.yaml | 82 +++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/nuvoton,ma35d1-keypad.yaml

diff --git a/Documentation/devicetree/bindings/input/nuvoton,ma35d1-keypad.yaml b/Documentation/devicetree/bindings/input/nuvoton,ma35d1-keypad.yaml
new file mode 100644
index 000000000000..889f253b3bc2
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/nuvoton,ma35d1-keypad.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/nuvoton,ma35d1-keypad.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton MA35D1 Keypad
+
+maintainers:
+  - Ming-jen Chen <mjchen0829@...il.com>
+
+allOf:
+  - $ref: /schemas/input/matrix-keymap.yaml#
+
+properties:
+  compatible:
+    const: nuvoton,ma35d1-kpi
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  linux,keymap:
+    description: Keymap for the keypad.
+
+  keypad,num-rows:
+    description: Number of rows in the keypad.
+    minimum: 2
+    maximum: 8
+
+  keypad,num-columns:
+    description: Number of columns in the keypad.
+    minimum: 1
+    maximum: 8
+
+  debounce-delay-ms:
+    description: Debounce delay time in milliseconds.
+    maxItems: 1
+
+  scan-interval-ms:
+    description: Scan interval time in milliseconds.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - linux,keymap
+  - keypad,num-rows
+  - keypad,num-columns
+  - debounce-delay-ms
+  - scan-interval-ms
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/input/input.h>
+    keypad@...a0000 {
+      compatible = "nuvoton,ma35d1-kpi";
+      reg = <0x404a0000 0x10000>;
+      interrupts = <79>;
+      clocks = <&clk>;
+      keypad,num-rows = <2>;
+      keypad,num-columns = <2>;
+
+      linux,keymap = <
+         MATRIX_KEY(0, 0, KEY_ENTER)
+         MATRIX_KEY(0, 1, KEY_ENTER)
+         MATRIX_KEY(1, 0, KEY_SPACE)
+         MATRIX_KEY(1, 1, KEY_Z)
+      >;
+
+      debounce-delay-ms = <1>;
+      scan-interval-ms = <20>;
+    };
-- 
2.25.1