ASoC: dt-bindings: ti,omap4-dmic: Convert to DT schema

Convert the TI OMAP4+ dmic bindings from txt to DT schema.

Following changes are introduced during converson:
  - Drop ti,hwmods property as it is not needed since the sysc
    conversion no existing DTS uses it.
  - Add dma, dma-names, reg-names properties to match the DTS.
  - Update example node to match existing DTS.

Signed-off-by: Bhargav Joshi <j.bhargav.u@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260713-ti-omap4-dmic-v1-1-3cc6e13decec@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/omap-dmic.txt

@@ -1,20 +0,0 @@
-* Texas Instruments OMAP4+ Digital Microphone Module
-
-Required properties:
-- compatible: "ti,omap4-dmic"
-- reg: Register location and size as an array:
-       <MPU access base address, size>,
-       <L3 interconnect address, size>;
-- interrupts: Interrupt number for DMIC
-- ti,hwmods: Name of the hwmod associated with OMAP dmic IP
-
-Example:
-
-dmic: dmic@4012e000 {
-	compatible = "ti,omap4-dmic";
-	reg = <0x4012e000 0x7f>, /* MPU private access */
-	      <0x4902e000 0x7f>; /* L3 Interconnect */
-	interrupts = <0 114 0x4>;
-	interrupt-parent = <&gic>;
-	ti,hwmods = "dmic";
-};

Documentation/devicetree/bindings/sound/ti,omap4-dmic.yaml

@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/ti,omap4-dmic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments OMAP4+ Digital Microphone Module
+
+maintainers:
+  - Peter Ujfalusi <peter.ujfalusi@ti.com>
+
+properties:
+  compatible:
+    const: ti,omap4-dmic
+
+  reg:
+    items:
+      - description: MPU access base address
+      - description: L3 interconnect address
+
+  reg-names:
+    items:
+      - const: mpu
+      - const: dma
+
+  interrupts:
+    maxItems: 1
+
+  dmas:
+    maxItems: 1
+
+  dma-names:
+    items:
+      - const: up_link
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - dmas
+  - dma-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    dmic@0 {
+      compatible = "ti,omap4-dmic";
+      reg = <0x0 0x7f>, /* MPU private access */
+            <0x4902e000 0x7f>; /* L3 Interconnect */
+      reg-names = "mpu", "dma";
+      interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
+      dmas = <&sdma 67>;
+      dma-names = "up_link";
+    };