dt-bindings: clock: sophgo: Add clock controller of CV1800 series SoC

Add definition for the clock controller of the CV1800 series SoC.

For CV181X, it has a clock that CV180X does not have. To avoid misuse,
also add a compatible string to identify CV181X series SoC.

Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
Link: https://github.com/milkv-duo/duo-files/blob/main/hardware/CV1800B/CV1800B-CV1801B-Preliminary-Datasheet-full-en.pdf
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/IA1PR20MB49535E448097F6FFC1218C39BB90A@IA1PR20MB4953.namprd20.prod.outlook.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

1 files changed, 46 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/sophgo,cv1800-clk.yaml b/Documentation/devicetree/bindings/clock/sophgo,cv1800-clk.yaml
new file mode 100644
index 000000000000..c1dc24673c0d
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sophgo,cv1800-clk.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/sophgo,cv1800-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo CV1800 Series Clock Controller
+
+maintainers:
+  - Inochi Amaoto <inochiama@outlook.com>
+
+properties:
+  compatible:
+    enum:
+      - sophgo,cv1800-clk
+      - sophgo,cv1810-clk
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  "#clock-cells":
+    const: 1
+    description:
+      See <dt-bindings/clock/sophgo,cv1800.h> for valid indices.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    clock-controller@3002000 {
+        compatible = "sophgo,cv1800-clk";
+        reg = <0x03002000 0x1000>;
+        clocks = <&osc>;
+        #clock-cells = <1>;
+    };
+
+...