dt-bindings: phy: mxs-usb-phy: convert to DT schema format

Convert the binding to DT schema format. Besides, this also add clocks,
'#phy-cells', phy-3p0-supply and power-domains properties which are not
contained in txt file due to txt file lack updates.

Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230613083445.1129137-1-xu.yang_2@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: Xu Yang

Documentation/devicetree/bindings/phy/fsl,mxs-usbphy.yaml

@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/fsl,mxs-usbphy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale MXS USB Phy Device
+
+maintainers:
+  - Xu Yang <xu.yang_2@nxp.com>
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - fsl,imx23-usbphy
+          - fsl,imx7ulp-usbphy
+          - fsl,vf610-usbphy
+      - items:
+          - enum:
+              - fsl,imx28-usbphy
+              - fsl,imx6ul-usbphy
+              - fsl,imx6sl-usbphy
+              - fsl,imx6sx-usbphy
+              - fsl,imx6q-usbphy
+          - const: fsl,imx23-usbphy
+      - items:
+          - const: fsl,imx6sll-usbphy
+          - const: fsl,imx6ul-usbphy
+          - const: fsl,imx23-usbphy
+      - items:
+          - const: fsl,imx8dxl-usbphy
+          - const: fsl,imx7ulp-usbphy
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  '#phy-cells':
+    const: 0
+
+  power-domains:
+    maxItems: 1
+
+  fsl,anatop:
+    description:
+      phandle for anatop register, it is only for imx6 SoC series.
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  phy-3p0-supply:
+    description:
+      One of USB PHY's power supply. Can be used to keep a good signal
+      quality.
+
+  fsl,tx-cal-45-dn-ohms:
+    description:
+      Resistance (in ohms) of switchable high-speed trimming resistor
+      connected in parallel with the 45 ohm resistor that terminates
+      the DN output signal.
+    minimum: 35
+    maximum: 54
+    default: 45
+
+  fsl,tx-cal-45-dp-ohms:
+    description:
+      Resistance (in ohms) of switchable high-speed trimming resistor
+      connected in parallel with the 45 ohm resistor that terminates
+      the DP output signal.
+    minimum: 35
+    maximum: 54
+    default: 45
+
+  fsl,tx-d-cal:
+    description:
+      Current trimming value (as a percentage) of the 17.78 mA TX
+      reference current.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 79
+    maximum: 119
+    default: 100
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          oneOf:
+            - enum:
+                - fsl,imx6q-usbphy
+                - fsl,imx6sl-usbphy
+                - fsl,imx6sx-usbphy
+                - fsl,imx6sll-usbphy
+                - fsl,vf610-usbphy
+            - items:
+                - const: fsl,imx6ul-usbphy
+                - const: fsl,imx23-usbphy
+    then:
+      required:
+        - fsl,anatop
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/imx6qdl-clock.h>
+
+    usbphy1: usb-phy@20c9000 {
+        compatible = "fsl,imx6q-usbphy", "fsl,imx23-usbphy";
+        reg = <0x020c9000 0x1000>;
+        clocks = <&clks IMX6QDL_CLK_USBPHY1>;
+        interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+        fsl,anatop = <&anatop>;
+    };
+
+...