dt-bindings: usb: Convert fsl-usb to yaml

Convert fsl-usb binding doc to yaml format.

Additional change:
- Remove port0 and port1 from required list.
- Use common usb-drd.yaml for dr_mode property
- Keep two difference examples.
- Add interrupts to required property list.
- Remove #address-cells and #size-cells in example.
- Use predefined irq type macro.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240627144815.4014179-1-Frank.Li@nxp.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation/devicetree/bindings/usb/fsl,usb2.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/fsl,usb2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale SOC USB controllers
+
+maintainers:
+  - Frank Li <Frank.Li@nxp.com>
+
+description: |
+  The device node for a USB controller that is part of a Freescale
+  SOC is as described in the document "Open Firmware Recommended
+  Practice: Universal Serial Bus" with the following modifications
+  and additions.
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - fsl-usb2-mph
+          - fsl-usb2-dr
+      - items:
+          - enum:
+              - fsl-usb2-dr-v2.2
+              - fsl-usb2-dr-v2.5
+          - const: fsl-usb2-dr
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  phy_type:
+    $ref: /schemas/types.yaml#/definitions/string
+    enum: [ulpi, serial, utmi, utmi_wide]
+
+  port0:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      Indicates port0 is connected for fsl-usb2-mph compatible controllers.
+
+  port1:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      Indicates port1 is connected for "fsl-usb2-mph" compatible controllers.
+
+  fsl,invert-drvvbus:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      for MPC5121 USB0 only. Indicates the
+      port power polarity of internal PHY signal DRVVBUS is inverted.
+
+  fsl,invert-pwr-fault:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      for MPC5121 USB0 only. Indicates
+      the PWR_FAULT signal polarity is inverted.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - phy_type
+
+allOf:
+  - $ref: usb-drd.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    usb@22000 {
+        compatible = "fsl-usb2-mph";
+        reg = <22000 1000>;
+        interrupts = <27 IRQ_TYPE_EDGE_RISING>;
+        phy_type = "ulpi";
+        port0;
+        port1;
+    };
+
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    usb@23000 {
+        compatible = "fsl-usb2-dr";
+        reg = <23000 1000>;
+        interrupts = <26 IRQ_TYPE_EDGE_RISING>;
+        dr_mode = "otg";
+        phy_type = "ulpi";
+    };

Documentation/devicetree/bindings/usb/fsl-usb.txt

-Freescale SOC USB controllers
-
-The device node for a USB controller that is part of a Freescale
-SOC is as described in the document "Open Firmware Recommended
-Practice : Universal Serial Bus" with the following modifications
-and additions :
-
-Required properties :
- - compatible : Should be "fsl-usb2-mph" for multi port host USB
-   controllers, or "fsl-usb2-dr" for dual role USB controllers
-   or "fsl,mpc5121-usb2-dr" for dual role USB controllers of MPC5121.
-   Wherever applicable, the IP version of the USB controller should
-   also be mentioned (for eg. fsl-usb2-dr-v2.2 for bsc9132).
- - phy_type : For multi port host USB controllers, should be one of
-   "ulpi", or "serial". For dual role USB controllers, should be
-   one of "ulpi", "utmi", "utmi_wide", or "serial".
- - reg : Offset and length of the register set for the device
- - port0 : boolean; if defined, indicates port0 is connected for
-   fsl-usb2-mph compatible controllers.  Either this property or
-   "port1" (or both) must be defined for "fsl-usb2-mph" compatible
-   controllers.
- - port1 : boolean; if defined, indicates port1 is connected for
-   fsl-usb2-mph compatible controllers.  Either this property or
-   "port0" (or both) must be defined for "fsl-usb2-mph" compatible
-   controllers.
- - dr_mode : indicates the working mode for "fsl-usb2-dr" compatible
-   controllers.  Can be "host", "peripheral", or "otg".  Default to
-   "host" if not defined for backward compatibility.
-
-Recommended properties :
- - interrupts : <a b> where a is the interrupt number and b is a
-   field that represents an encoding of the sense and level
-   information for the interrupt.  This should be encoded based on
-   the information in section 2) depending on the type of interrupt
-   controller you have.
-
-Optional properties :
- - fsl,invert-drvvbus : boolean; for MPC5121 USB0 only. Indicates the
-   port power polarity of internal PHY signal DRVVBUS is inverted.
- - fsl,invert-pwr-fault : boolean; for MPC5121 USB0 only. Indicates
-   the PWR_FAULT signal polarity is inverted.
-
-Example multi port host USB controller device node :
-	usb@22000 {
-		compatible = "fsl-usb2-mph";
-		reg = <22000 1000>;
-		#address-cells = <1>;
-		#size-cells = <0>;
-		interrupt-parent = <700>;
-		interrupts = <27 1>;
-		phy_type = "ulpi";
-		port0;
-		port1;
-	};
-
-Example dual role USB controller device node :
-	usb@23000 {
-		compatible = "fsl-usb2-dr";
-		reg = <23000 1000>;
-		#address-cells = <1>;
-		#size-cells = <0>;
-		interrupt-parent = <700>;
-		interrupts = <26 1>;
-		dr_mode = "otg";
-		phy = "ulpi";
-	};
-
-Example dual role USB controller device node for MPC5121ADS:
-
-	usb@4000 {
-		compatible = "fsl,mpc5121-usb2-dr";
-		reg = <0x4000 0x1000>;
-		#address-cells = <1>;
-		#size-cells = <0>;
-		interrupt-parent = < &ipic >;
-		interrupts = <44 0x8>;
-		dr_mode = "otg";
-		phy_type = "utmi_wide";
-		fsl,invert-drvvbus;
-		fsl,invert-pwr-fault;
-	};