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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-ccu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner Clock Control Unit Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+properties:
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ compatible:
+ enum:
+ - allwinner,sun4i-a10-ccu
+ - allwinner,sun5i-a10s-ccu
+ - allwinner,sun5i-a13-ccu
+ - allwinner,sun6i-a31-ccu
+ - allwinner,sun7i-a20-ccu
+ - allwinner,sun8i-a23-ccu
+ - allwinner,sun8i-a33-ccu
+ - allwinner,sun8i-a83t-ccu
+ - allwinner,sun8i-a83t-r-ccu
+ - allwinner,sun8i-h3-ccu
+ - allwinner,sun8i-h3-r-ccu
+ - allwinner,sun8i-r40-ccu
+ - allwinner,sun8i-v3-ccu
+ - allwinner,sun8i-v3s-ccu
+ - allwinner,sun9i-a80-ccu
+ - allwinner,sun50i-a64-ccu
+ - allwinner,sun50i-a64-r-ccu
+ - allwinner,sun50i-a100-ccu
+ - allwinner,sun50i-a100-r-ccu
+ - allwinner,sun50i-h5-ccu
+ - allwinner,sun50i-h6-ccu
+ - allwinner,sun50i-h6-r-ccu
+ - allwinner,suniv-f1c100s-ccu
+ - nextthing,gr8-ccu
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 2
+ maxItems: 4
+ items:
+ - description: High Frequency Oscillator (usually at 24MHz)
+ - description: Low Frequency Oscillator (usually at 32kHz)
+ - description: Internal Oscillator
+ - description: Peripherals PLL
+
+ clock-names:
+ minItems: 2
+ maxItems: 4
+ items:
+ - const: hosc
+ - const: losc
+ - const: iosc
+ - const: pll-periph
+
+required:
+ - "#clock-cells"
+ - "#reset-cells"
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+if:
+ properties:
+ compatible:
+ enum:
+ - allwinner,sun8i-a83t-r-ccu
+ - allwinner,sun8i-h3-r-ccu
+ - allwinner,sun50i-a64-r-ccu
+ - allwinner,sun50i-a100-r-ccu
+ - allwinner,sun50i-h6-r-ccu
+
+then:
+ properties:
+ clocks:
+ minItems: 4
+ maxItems: 4
+
+ clock-names:
+ minItems: 4
+ maxItems: 4
+
+else:
+ if:
+ properties:
+ compatible:
+ enum:
+ - allwinner,sun50i-a100-ccu
+ - allwinner,sun50i-h6-ccu
+
+ then:
+ properties:
+ clocks:
+ minItems: 3
+ maxItems: 3
+
+ clock-names:
+ minItems: 3
+ maxItems: 3
+
+ else:
+ properties:
+ clocks:
+ minItems: 2
+ maxItems: 2
+
+ clock-names:
+ minItems: 2
+ maxItems: 2
+
+additionalProperties: false
+
+examples:
+ - |
+ ccu: clock@1c20000 {
+ compatible = "allwinner,sun8i-h3-ccu";
+ reg = <0x01c20000 0x400>;
+ clocks = <&osc24M>, <&osc32k>;
+ clock-names = "hosc", "losc";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ - |
+ r_ccu: clock@1f01400 {
+ compatible = "allwinner,sun50i-a64-r-ccu";
+ reg = <0x01f01400 0x100>;
+ clocks = <&osc24M>, <&osc32k>, <&iosc>, <&ccu 11>;
+ clock-names = "hosc", "losc", "iosc", "pll-periph";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+...