[PATCH] dt-bindings: input: Convert TI Keypad Controller to DT schema

[Eduard Bostina <egbostina@gmail.com>]

Convert the Texas Instruments Keypad Controller bindings
to DT schema.

During the conversion, the following updates were made:
- Corrected the documented property 'linux,keypad-no-autorepeat'
  to 'linux,input-no-autorepeat'. The old text binding documented
  the property incorrectly. The standard input subsystem property is
  'linux,input-no-autorepeat', which is actively used in device
  trees and parsed by the kernel.
- Added the 'reg-names' property ("mpu"), which was omitted from
  the original text binding but is actively used in devide trees.
- Omitted 'keypad,num-rows' and 'keypad,num-columns' from the
  required list. The original text binding stated these were
  required but enforcing them causes validation failures.

Signed-off-by: Eduard Bostina <egbostina@gmail.com>
---
 .../devicetree/bindings/input/omap-keypad.txt | 28 ---------
 .../bindings/input/ti,omap4-keypad.yaml       | 57 +++++++++++++++++++
 2 files changed, 57 insertions(+), 28 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/input/omap-keypad.txt
 create mode 100644 Documentation/devicetree/bindings/input/ti,omap4-keypad.yaml

diff --git a/Documentation/devicetree/bindings/input/omap-keypad.txt b/Documentation/devicetree/bindings/input/omap-keypad.txt
deleted file mode 100644
index 34ed1c60ff95..000000000000
--- a/Documentation/devicetree/bindings/input/omap-keypad.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-* TI's Keypad Controller device tree bindings
-
-TI'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.
-
-This binding is based on the matrix-keymap binding with the following
-changes:
-
-keypad,num-rows and keypad,num-columns are required.
-
-Required SoC Specific Properties:
-- compatible: should be one of the following
-   - "ti,omap4-keypad": For controllers compatible with omap4 keypad
-      controller.
-
-Optional Properties specific to linux:
-- linux,keypad-no-autorepeat: do no enable autorepeat feature.
-
-Example:
-	keypad@4ae1c000{
-		compatible = "ti,omap4-keypad";
-		keypad,num-rows = <2>;
-		keypad,num-columns = <8>;
-		linux,keypad-no-autorepeat;
-	};
diff --git a/Documentation/devicetree/bindings/input/ti,omap4-keypad.yaml b/Documentation/devicetree/bindings/input/ti,omap4-keypad.yaml
new file mode 100644
index 000000000000..5647b4a24228
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/ti,omap4-keypad.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/ti,omap4-keypad.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments Keypad Controller
+
+maintainers:
+  - Eduard Bostina <egbostina@gmail.com>
+
+description: |
+  TI'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.
+
+allOf:
+  - $ref: /schemas/input/matrix-keymap.yaml#
+
+properties:
+  compatible:
+    const: ti,omap4-keypad
+
+  reg:
+    maxItems: 1
+
+  reg-names:
+    const: mpu
+
+  interrupts:
+    maxItems: 1
+
+  linux,input-no-autorepeat:
+    type: boolean
+    description: Do not enable autorepeat feature.
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    keypad@4ae1c000 {
+        compatible = "ti,omap4-keypad";
+        reg = <0x4ae1c000 0x400>;
+        reg-names = "mpu";
+        interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
+        keypad,num-rows = <2>;
+        keypad,num-columns = <8>;
+        linux,input-no-autorepeat;
+    };
-- 
2.43.0