dt-bindings: usb: Convert multiple "usb-ohci" bindings to DT schema

"usb-ohci" is another "generic" OHCI controller compatible string used by
several platforms. Add it to the generic-ohci.yaml schema and remove all
the old binding docs.

Marvell pxa-usb.txt has "usb-ohci" in the example, but actual users don't,
so drop it.

Signed-off-by: Rob Herring <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

Documentation/devicetree/bindings/powerpc/nintendo/wii.txt

···
    - reg : should contain the EXI registers location and length
    - interrupts : should contain the EXI interrupt
 
-1.g) The Open Host Controller Interface (OHCI) nodes
-
-  Represent the USB 1.x Open Host Controller Interfaces.
-
-  Required properties:
-
-   - compatible : should be "nintendo,hollywood-usb-ohci","usb-ohci"
-   - reg : should contain the OHCI registers location and length
-   - interrupts : should contain the OHCI interrupt
-
 1.h) The Enhanced Host Controller Interface (EHCI) node
 
   Represents the USB 2.0 Enhanced Host Controller Interface.

Documentation/devicetree/bindings/usb/generic-ohci.yaml

···
 
 title: USB OHCI Controller
 
-allOf:
-  - $ref: "usb-hcd.yaml"
-
 maintainers:
   - Greg Kroah-Hartman <[e-mail]>
 
···
               - snps,hsdk-v1.0-ohci
           - const: generic-ohci
       - const: generic-ohci
+      - items:
+          - enum:
+              - cavium,octeon-6335-ohci
+              - nintendo,hollywood-usb-ohci
+              - nxp,ohci-nxp
+              - st,spear600-ohci
+          - const: usb-ohci
 
   reg:
     maxItems: 1
···
       - host
       - otg
 
+  transceiver:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      The associated ISP1301 device. Necessary for the UDC controller for
+      connecting to the USB physical layer.
+
 required:
   - compatible
   - reg
   - interrupts
+
+allOf:
+  - $ref: usb-hcd.yaml
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              const: nxp,ohci-nxp
+    then:
+      properties:
+        transceiver: false
 
 additionalProperties: false
 

Documentation/devicetree/bindings/usb/ohci-nxp.txt

···
-* OHCI controller, NXP ohci-nxp variant
-
-Required properties:
-- compatible: must be "nxp,ohci-nxp"
-- reg: physical base address of the controller and length of memory mapped
-  region.
-- interrupts: The OHCI interrupt
-- transceiver: phandle of the associated ISP1301 device - this is necessary for
-               the UDC controller for connecting to the USB physical layer
-
-Example (LPC32xx):
-
-	isp1301: usb-transceiver@2c {
-		compatible = "nxp,isp1301";
-		reg = <0x2c>;
-	};
-
-	ohci@31020000 {
-		compatible = "nxp,ohci-nxp";
-		reg = <0x31020000 0x300>;
-		interrupt-parent = <&mic>;
-		interrupts = <0x3b 0>;
-		transceiver = <&isp1301>;
-	};

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

···
 Example:
 
 	usb0: ohci@4c000000 {
-		compatible = "marvell,pxa-ohci", "usb-ohci";
+		compatible = "marvell,pxa-ohci";
 		reg = <0x4c000000 0x100000>;
 		interrupts = <18>;
 		marvell,enable-port1;

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

···
-ST SPEAr SoC USB controllers:
------------------------------
-
-EHCI:
------
-
-Required properties:
-- compatible: "st,spear600-ehci"
-- interrupts: Should contain the EHCI interrupt
-
-Example:
-
-	ehci@e1800000 {
-		compatible = "st,spear600-ehci", "usb-ehci";
-		reg = <0xe1800000 0x1000>;
-		interrupt-parent = <&vic1>;
-		interrupts = <27>;
-	};
-
-
-OHCI:
------
-
-Required properties:
-- compatible: "st,spear600-ohci"
-- interrupts: Should contain the OHCI interrupt
-
-Example:
-
-	ohci@e1900000 {
-		compatible = "st,spear600-ohci", "usb-ohci";
-		reg = <0xe1800000 0x1000>;
-		interrupt-parent = <&vic1>;
-		interrupts = <26>;
-	};