ASoC: dt-bindings: tegra30-i2s: convert to dt schema

Convert NVIDIA Tegra30 I2S binding to DT schema and
add "clock-names" property used by multiple tegra i2s blocks
in arch/arm64/boot/dts/nvidia/tegra132.dtsi. This is not a
required property by the binding.

Signed-off-by: Mohammad Shehar Yaar Tausif <[email protected]>
Reviewed-by: Rob Herring (Arm) <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: sheharyaar

Documentation/devicetree/bindings/sound/nvidia,tegra30-i2s.txt

@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/nvidia,tegra30-i2s.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra30 I2S controller
+
+maintainers:
+  - Thierry Reding <[email protected]>
+  - Jon Hunter <[email protected]>
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - nvidia,tegra124-i2s
+          - nvidia,tegra30-i2s
+      - items:
+          - const: nvidia,tegra114-i2s
+          - const: nvidia,tegra30-i2s
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: i2s
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    const: i2s
+
+  nvidia,ahub-cif-ids:
+    description: list of AHUB CIF IDs
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    items:
+      - description: rx (playback)
+      - description: tx (capture)
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - resets
+  - reset-names
+  - nvidia,ahub-cif-ids
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/tegra30-car.h>
+
+    i2s@70080300 {
+        compatible = "nvidia,tegra30-i2s";
+        reg = <0x70080300 0x100>;
+        nvidia,ahub-cif-ids = <4 4>;
+        clocks = <&tegra_car TEGRA30_CLK_I2S0>;
+        resets = <&tegra_car 30>;
+        reset-names = "i2s";
+    };
+...