dt-bindings: clock, reset: Add support for rv1126b

Add clock and reset ID defines for rv1126b.
Also add documentation for the rv1126b CRU core.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20251111025738.869847-3-zhangqing@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: Elaine Zhang

Documentation/devicetree/bindings/clock/rockchip,rv1126b-cru.yaml

@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rv1126b-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RV1126B Clock and Reset Unit
+
+maintainers:
+  - Elaine Zhang <zhangqing@rock-chips.com>
+  - Heiko Stuebner <heiko@sntech.de>
+
+description:
+  The rv1126b clock controller generates the clock and also implements a
+  reset controller for SoC peripherals.
+
+properties:
+  compatible:
+    enum:
+      - rockchip,rv1126b-cru
+
+  reg:
+    maxItems: 1
+
+  "#clock-cells":
+    const: 1
+
+  "#reset-cells":
+    const: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: xin24m
+
+required:
+  - compatible
+  - reg
+  - "#clock-cells"
+  - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    clock-controller@20000000 {
+      compatible = "rockchip,rv1126b-cru";
+      reg = <0x20000000 0xc0000>;
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+    };