dt-bindings: phy: hisilicon,hi3798cv200-combphy: Convert to DT schema

Convert the hisilicon,hi3798cv200-combphy binding to DT schema format.

Drop the example as arm/hisilicon/controller/hi3798cv200-perictrl.yaml
already contains an example of this binding.
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240711152313.2364383-1-robh@kernel.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

Documentation/devicetree/bindings/phy/hisilicon,hi3798cv200-combphy.yaml

+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/hisilicon,hi3798cv200-combphy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HiSilicon STB PCIE/SATA/USB3 PHY
+
+maintainers:
+  - Shawn Guo <shawn.guo@linaro.org>
+
+properties:
+  compatible:
+    const: hisilicon,hi3798cv200-combphy
+
+  reg:
+    maxItems: 1
+
+  '#phy-cells':
+    description: The cell contains the PHY mode
+    const: 1
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  hisilicon,fixed-mode:
+    description: If the phy device doesn't support mode select but a fixed mode
+      setting, the property should be present to specify the particular mode.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [ 1, 2, 4]  # SATA, PCIE, USB3
+
+  hisilicon,mode-select-bits:
+    description: If the phy device support mode select, this property should be
+      present to specify the register bits in peripheral controller.
+    items:
+      - description: register_offset
+      - description: bit shift
+      - description: bit mask
+
+required:
+  - compatible
+  - reg
+  - '#phy-cells'
+  - clocks
+  - resets
+
+oneOf:
+  - required: ['hisilicon,fixed-mode']
+  - required: ['hisilicon,mode-select-bits']
+
+additionalProperties: false
+
+...

Documentation/devicetree/bindings/phy/phy-hi3798cv200-combphy.txt

-HiSilicon STB PCIE/SATA/USB3 PHY
-
-Required properties:
-- compatible: Should be "hisilicon,hi3798cv200-combphy"
-- reg: Should be the address space for COMBPHY configuration and state
-  registers in peripheral controller, e.g. PERI_COMBPHY0_CFG and
-  PERI_COMBPHY0_STATE for COMBPHY0 Hi3798CV200 SoC.
-- #phy-cells: Should be 1.  The cell number is used to select the phy mode
-  as defined in <dt-bindings/phy/phy.h>.
-- clocks: The phandle to clock provider and clock specifier pair.
-- resets: The phandle to reset controller and reset specifier pair.
-
-Refer to phy/phy-bindings.txt for the generic PHY binding properties.
-
-Optional properties:
-- hisilicon,fixed-mode: If the phy device doesn't support mode select
-  but a fixed mode setting, the property should be present to specify
-  the particular mode.
-- hisilicon,mode-select-bits: If the phy device support mode select,
-  this property should be present to specify the register bits in
-  peripheral controller, as a 3 integers tuple:
-  <register_offset bit_shift bit_mask>.
-
-Notes:
-- Between hisilicon,fixed-mode and hisilicon,mode-select-bits, one and only
-  one of them should be present.
-- The device node should be a child of peripheral controller that contains
-  COMBPHY configuration/state and PERI_CTRL register used to select PHY mode.
-  Refer to arm/hisilicon/hisilicon.txt for the parent peripheral controller
-  bindings.
-
-Examples:
-
-perictrl: peripheral-controller@8a20000 {
-	compatible = "hisilicon,hi3798cv200-perictrl", "syscon",
-		     "simple-mfd";
-	reg = <0x8a20000 0x1000>;
-	#address-cells = <1>;
-	#size-cells = <1>;
-	ranges = <0x0 0x8a20000 0x1000>;
-
-	combphy0: phy@850 {
-		compatible = "hisilicon,hi3798cv200-combphy";
-		reg = <0x850 0x8>;
-		#phy-cells = <1>;
-		clocks = <&crg HISTB_COMBPHY0_CLK>;
-		resets = <&crg 0x188 4>;
-		hisilicon,fixed-mode = <PHY_TYPE_USB3>;
-	};
-
-	combphy1: phy@858 {
-		compatible = "hisilicon,hi3798cv200-combphy";
-		reg = <0x858 0x8>;
-		#phy-cells = <1>;
-		clocks = <&crg HISTB_COMBPHY1_CLK>;
-		resets = <&crg 0x188 12>;
-		hisilicon,mode-select-bits = <0x0008 11 (0x3 << 11)>;
-	};
-};