dt-bindings: input: samsung,s3c6410-keypad: convert to DT Schema

Convert Samsung SoC Keypad bindings to DT schema with changes:
1. Rename "linux,keypad-no-autorepeat" property to
   "linux,input-no-autorepeat", because the latter was implemented in
   the Linux driver.
2. Add clocks and clock-names, already used by DTS and the Linux driver.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240312183001.714626-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Documentation/devicetree/bindings/input/samsung,s3c6410-keypad.yaml

+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/samsung,s3c6410-keypad.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung SoC series Keypad Controller
+
+description:
+  Samsung SoC Keypad controller is used to interface a SoC with a matrix-type
+  keypad device. The keypad controller supports multiple row and column lines.
+  A key can be placed at each intersection of a unique row and a unique column.
+  The keypad controller can sense a key-press and key-release and report the
+  event using a interrupt to the cpu.
+
+maintainers:
+  - Krzysztof Kozlowski <krzk@kernel.org>
+
+properties:
+  compatible:
+    enum:
+      - samsung,s3c6410-keypad
+      - samsung,s5pv210-keypad
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: keypad
+
+  interrupts:
+    maxItems: 1
+
+  wakeup-source: true
+
+  linux,input-no-autorepeat:
+    type: boolean
+    description:
+      Do no enable autorepeat feature.
+
+  linux,input-wakeup:
+    type: boolean
+    deprecated: true
+
+  samsung,keypad-num-columns:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Number of column lines connected to the keypad controller.
+
+  samsung,keypad-num-rows:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      Number of row lines connected to the keypad controller.
+
+patternProperties:
+  '^key-[0-9a-z]+$':
+    type: object
+    $ref: input.yaml#
+    additionalProperties: false
+    description:
+      Each key connected to the keypad controller is represented as a child
+      node to the keypad controller device node.
+
+    properties:
+      keypad,column:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description: The column number to which the key is connected.
+
+      keypad,row:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description: The row number to which the key is connected.
+
+      linux,code: true
+
+    required:
+      - keypad,column
+      - keypad,row
+      - linux,code
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - samsung,keypad-num-columns
+  - samsung,keypad-num-rows
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/exynos4.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    keypad@100a0000 {
+        compatible = "samsung,s5pv210-keypad";
+        reg = <0x100a0000 0x100>;
+        interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&clock CLK_KEYIF>;
+        clock-names = "keypad";
+
+        samsung,keypad-num-rows = <2>;
+        samsung,keypad-num-columns = <8>;
+        linux,input-no-autorepeat;
+        wakeup-source;
+
+        key-1 {
+            keypad,row = <0>;
+            keypad,column = <3>;
+            linux,code = <2>;
+        };
+
+        key-2 {
+            keypad,row = <0>;
+            keypad,column = <4>;
+            linux,code = <3>;
+        };
+    };

Documentation/devicetree/bindings/input/samsung-keypad.txt

-* Samsung's Keypad Controller device tree bindings
-
-Samsung's Keypad controller is used to interface a SoC with a matrix-type
-keypad device. The keypad controller supports multiple row and column lines.
-A key can be placed at each intersection of a unique row and a unique column.
-The keypad controller can sense a key-press and key-release and report the
-event using a interrupt to the cpu.
-
-Required SoC Specific Properties:
-- compatible: should be one of the following
-  - "samsung,s3c6410-keypad": For controllers compatible with s3c6410 keypad
-    controller.
-  - "samsung,s5pv210-keypad": For controllers compatible with s5pv210 keypad
-    controller.
-
-- reg: physical base address of the controller and length of memory mapped
-  region.
-
-- interrupts: The interrupt number to the cpu.
-
-Required Board Specific Properties:
-- samsung,keypad-num-rows: Number of row lines connected to the keypad
-  controller.
-
-- samsung,keypad-num-columns: Number of column lines connected to the
-  keypad controller.
-
-- Keys represented as child nodes: Each key connected to the keypad
-  controller is represented as a child node to the keypad controller
-  device node and should include the following properties.
-  - keypad,row: the row number to which the key is connected.
-  - keypad,column: the column number to which the key is connected.
-  - linux,code: the key-code to be reported when the key is pressed
-    and released.
-
-- pinctrl-0: Should specify pin control groups used for this controller.
-- pinctrl-names: Should contain only one value - "default".
-
-Optional Properties:
-- wakeup-source: use any event on keypad as wakeup event.
-		 (Legacy property supported: "linux,input-wakeup")
-
-Optional Properties specific to linux:
-- linux,keypad-no-autorepeat: do no enable autorepeat feature.
-
-
-Example:
-	keypad@100a0000 {
-		compatible = "samsung,s5pv210-keypad";
-		reg = <0x100A0000 0x100>;
-		interrupts = <173>;
-		samsung,keypad-num-rows = <2>;
-		samsung,keypad-num-columns = <8>;
-		linux,input-no-autorepeat;
-		wakeup-source;
-
-		pinctrl-names = "default";
-		pinctrl-0 = <&keypad_rows &keypad_columns>;
-
-		key_1 {
-			keypad,row = <0>;
-			keypad,column = <3>;
-			linux,code = <2>;
-		};
-
-		key_2 {
-			keypad,row = <0>;
-			keypad,column = <4>;
-			linux,code = <3>;
-		};
-
-		key_3 {
-			keypad,row = <0>;
-			keypad,column = <5>;
-			linux,code = <4>;
-		};
-	};

Documentation/devicetree/bindings/power/wakeup-source.txt

@@ -23,7 +23,7 @@ List of legacy properties and respective binding document
 				Documentation/devicetree/bindings/mfd/tc3589x.txt
 				Documentation/devicetree/bindings/input/touchscreen/ads7846.txt
 4. "linux,keypad-wakeup"	Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt
-5. "linux,input-wakeup"		Documentation/devicetree/bindings/input/samsung-keypad.txt
+5. "linux,input-wakeup"		Documentation/devicetree/bindings/input/samsung,s3c6410-keypad.yaml
 6. "nvidia,wakeup-source"	Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt
 
 Examples