dt-bindings: clock: Convert nuvoton,npcm750-clk to DT schema

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250630232637.3700584-1-robh@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Documentation/devicetree/bindings/clock/nuvoton,npcm750-clk.txt

@@ -1,100 +0,0 @@
-* Nuvoton NPCM7XX Clock Controller
-
-Nuvoton Poleg BMC NPCM7XX contains an integrated clock controller, which
-generates and supplies clocks to all modules within the BMC.
-
-External clocks:
-
-There are six fixed clocks that are generated outside the BMC. All clocks are of
-a known fixed value that cannot be changed. clk_refclk, clk_mcbypck and
-clk_sysbypck are inputs to the clock controller.
-clk_rg1refck, clk_rg2refck and clk_xin are external clocks suppling the
-network. They are set on the device tree, but not used by the clock module. The
-network devices use them directly.
-Example can be found below.
-
-All available clocks are defined as preprocessor macros in:
-dt-bindings/clock/nuvoton,npcm7xx-clock.h
-and can be reused as DT sources.
-
-Required Properties of clock controller:
-
-	- compatible: "nuvoton,npcm750-clk" : for clock controller of Nuvoton
-		  Poleg BMC NPCM750
-
-	- reg: physical base address of the clock controller and length of
-		memory mapped region.
-
-	- #clock-cells: should be 1.
-
-Example: Clock controller node:
-
-	clk: clock-controller@f0801000 {
-		compatible = "nuvoton,npcm750-clk";
-		#clock-cells = <1>;
-		reg = <0xf0801000 0x1000>;
-		clock-names = "refclk", "sysbypck", "mcbypck";
-		clocks = <&clk_refclk>, <&clk_sysbypck>, <&clk_mcbypck>;
-	};
-
-Example: Required external clocks for network:
-
-	/* external reference clock */
-	clk_refclk: clk-refclk {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <25000000>;
-		clock-output-names = "refclk";
-	};
-
-	/* external reference clock for cpu. float in normal operation */
-	clk_sysbypck: clk-sysbypck {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <800000000>;
-		clock-output-names = "sysbypck";
-	};
-
-	/* external reference clock for MC. float in normal operation */
-	clk_mcbypck: clk-mcbypck {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <800000000>;
-		clock-output-names = "mcbypck";
-	};
-
-	 /* external clock signal rg1refck, supplied by the phy */
-	clk_rg1refck: clk-rg1refck {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <125000000>;
-		clock-output-names = "clk_rg1refck";
-	};
-
-	 /* external clock signal rg2refck, supplied by the phy */
-	clk_rg2refck: clk-rg2refck {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <125000000>;
-		clock-output-names = "clk_rg2refck";
-	};
-
-	clk_xin: clk-xin {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <50000000>;
-		clock-output-names = "clk_xin";
-	};
-
-
-Example: GMAC controller node that consumes two clocks: a generated clk by the
-clock controller and a fixed clock from DT (clk_rg1refck).
-
-	ethernet0: ethernet@f0802000 {
-		compatible = "snps,dwmac";
-		reg = <0xf0802000 0x2000>;
-		interrupts = <0 14 4>;
-		interrupt-names = "macirq";
-		clocks	= <&clk_rg1refck>, <&clk NPCM7XX_CLK_AHB>;
-		clock-names = "stmmaceth", "clk_gmac";
-	};

Documentation/devicetree/bindings/clock/nuvoton,npcm750-clk.yaml

@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nuvoton,npcm750-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NPCM7XX Clock Controller
+
+maintainers:
+  - Tali Perry <tali.perry1@gmail.com>
+
+description: >
+  Nuvoton Poleg BMC NPCM7XX contains an integrated clock controller, which
+  generates and supplies clocks to all modules within the BMC.
+
+  External clocks:
+
+  There are six fixed clocks that are generated outside the BMC. All clocks are of
+  a known fixed value that cannot be changed. clk_refclk, clk_mcbypck and
+  clk_sysbypck are inputs to the clock controller.
+  clk_rg1refck, clk_rg2refck and clk_xin are external clocks suppling the
+  network. They are set on the device tree, but not used by the clock module. The
+  network devices use them directly.
+
+  All available clocks are defined as preprocessor macros in:
+  dt-bindings/clock/nuvoton,npcm7xx-clock.h
+  and can be reused as DT sources.
+
+properties:
+  compatible:
+    const: nuvoton,npcm750-clk
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+  clock-names:
+    items:
+      - const: refclk
+      - const: sysbypck
+      - const: mcbypck
+
+  clocks:
+    items:
+      - description: refclk
+      - description: sysbypck
+      - description: mcbypck
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    clock-controller@f0801000 {
+        compatible = "nuvoton,npcm750-clk";
+        #clock-cells = <1>;
+        reg = <0xf0801000 0x1000>;
+        clock-names = "refclk", "sysbypck", "mcbypck";
+        clocks = <&clk_refclk>, <&clk_sysbypck>, <&clk_mcbypck>;
+    };