dt-bindings: clock: samsung: convert S5Pv210 AudSS to dtschema

Convert Samsung S5Pv210 Audio SubSystem clock controller bindings to DT
schema format using json-schema.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20210825134251.220098-2-krzysztof.kozlowski@canonical.com
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Documentation/devicetree/bindings/clock/samsung,s5pv210-audss-clock.yaml

@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/samsung,s5pv210-audss-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung S5Pv210 SoC Audio SubSystem clock controller
+
+maintainers:
+  - Chanwoo Choi <cw00.choi@samsung.com>
+  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+  - Sylwester Nawrocki <s.nawrocki@samsung.com>
+  - Tomasz Figa <tomasz.figa@gmail.com>
+
+description: |
+  All available clocks are defined as preprocessor macros in
+  include/dt-bindings/clock/s5pv210-audss.h header.
+
+properties:
+  compatible:
+    const: samsung,s5pv210-audss-clock
+
+  clocks:
+    minItems: 4
+    items:
+      - description:
+          AHB bus clock of the Audio Subsystem.
+      - description:
+          Optional fixed rate PLL reference clock, parent of mout_audss. If not
+          specified (i.e. xusbxti is used for PLL reference), it is fixed to a
+          clock named "xxti".
+      - description:
+          Input PLL to the AudioSS block, parent of mout_audss.
+      - description:
+          Audio bus clock, parent of mout_i2s.
+      - description:
+          Optional external i2s clock, parent of mout_i2s. If not specified, it
+          is fixed to a clock named "iiscdclk0".
+
+  clock-names:
+    minItems: 4
+    items:
+      - const: hclk
+      - const: xxti
+      - const: fout_epll
+      - const: sclk_audio0
+      - const: iiscdclk0
+
+  "#clock-cells":
+    const: 1
+
+  power-domains:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+  - "#clock-cells"
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/s5pv210.h>
+
+    clock-controller@c0900000 {
+        compatible = "samsung,s5pv210-audss-clock";
+        reg = <0xc0900000 0x1000>;
+        #clock-cells = <1>;
+        clock-names = "hclk", "xxti", "fout_epll", "sclk_audio0";
+        clocks = <&clocks DOUT_HCLKP>, <&xxti>, <&clocks FOUT_EPLL>,
+                 <&clocks SCLK_AUDIO0>;
+    };