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]>

---
Changes v3->v4:
- removed redundant example
- defined clock-names property

v3:
https://lore.kernel.org/all/[email protected]/

---
 .../bindings/sound/nvidia,tegra30-i2s.txt     | 27 ------
 .../bindings/sound/nvidia,tegra30-i2s.yaml    | 83 +++++++++++++++++++
 2 files changed, 83 insertions(+), 27 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra30-i2s.txt
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra30-i2s.yaml

Documentation/devicetree/bindings/sound/nvidia,tegra30-i2s.txt deleted +0 -27

deleted file mode 100644
index 38caa936f6f8..000000000000
@@ -1,27 +0,0 @@
-NVIDIA Tegra30 I2S controller
-
-Required properties:
-- compatible : For Tegra30, must contain "nvidia,tegra30-i2s".  For Tegra124,
-  must contain "nvidia,tegra124-i2s".  Otherwise, must contain
-  "nvidia,<chip>-i2s" plus at least one of the above, where <chip> is
-  tegra114 or tegra132.
-- reg : Should contain I2S registers location and length
-- clocks : Must contain one entry, for the module clock.
-  See ../clocks/clock-bindings.txt for details.
-- resets : Must contain an entry for each entry in reset-names.
-  See ../reset/reset.txt for details.
-- reset-names : Must include the following entries:
-  - i2s
-- nvidia,ahub-cif-ids : The list of AHUB CIF IDs for this port, rx (playback)
-  first, tx (capture) second. See nvidia,tegra30-ahub.txt for values.
-
-Example:
-
-i2s@70080300 {
-	compatible = "nvidia,tegra30-i2s";
-	reg = <0x70080300 0x100>;
-	nvidia,ahub-cif-ids = <4 4>;
-	clocks = <&tegra_car 11>;
-	resets = <&tegra_car 11>;
-	reset-names = "i2s";
-};

Documentation/devicetree/bindings/sound/nvidia,tegra30-i2s.yaml new file +16 -0

new file mode 100644
index 000000000000..13cee366f5b3
@@ -0,0 +1,83 @@
+# 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:

Documentation/devicetree/bindings/sound/nvidia,tegra30-i2s.yaml new file +47 -0

+
+  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";
+    };
+  - |
+    #include <dt-bindings/clock/tegra124-car.h>