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Commit c93bcace authored by Maxime Ripard's avatar Maxime Ripard Committed by Greg Kroah-Hartman
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dt-bindings: usb: Convert the generic OHCI binding to YAML 



The generic OHCI binding is used by many controllers that are using the
OHCI spec.

Convert that binding to a YAML description to enable the validation on all
the nodes using that binding.

Signed-off-by: default avatarMaxime Ripard <maxime.ripard@bootlin.com>
Acked-by: default avatarChen-Yu Tsai <wens@csie.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 14ec072a

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

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# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/usb/generic-ohci.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: USB OHCI Controller Device Tree Bindings



allOf:

  - $ref: "usb-hcd.yaml"



maintainers:

  - Greg Kroah-Hartman <gregkh@linuxfoundation.org>



properties:

  compatible:

    contains:

      const: generic-ohci



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  resets:

    minItems: 1

    maxItems: 2



  clocks:

    minItems: 1

    maxItems: 3

    description: |

      In case the Renesas R-Car Gen3 SoCs:

        - if a host only channel: first clock should be host.

        - if a USB DRD channel: first clock should be host and second

          one should be peripheral



  big-endian:

    $ref: /schemas/types.yaml#/definitions/flag

    description:

      Set this flag for HCDs with big endian descriptors and big

      endian registers.



  big-endian-desc:

    $ref: /schemas/types.yaml#/definitions/flag

    description:

      Set this flag for HCDs with big endian descriptors.



  big-endian-regs:

    $ref: /schemas/types.yaml#/definitions/flag

    description:

      Set this flag for HCDs with big endian registers.



  remote-wakeup-connected:

    $ref: /schemas/types.yaml#/definitions/flag

    description:

      Remote wakeup is wired on the platform.



  no-big-frame-no:

    $ref: /schemas/types.yaml#/definitions/flag

    description:

      Set if frame_no lives in bits [15:0] of HCCA



  num-ports:

    $ref: /schemas/types.yaml#/definitions/uint32

    description:

      Overrides the detected port count



  phys: true



required:

  - compatible

  - reg

  - interrupts



additionalProperties: false



examples:

  - |

      ohci0: usb@1c14400 {

          compatible = "allwinner,sun4i-a10-ohci", "generic-ohci";

          reg = <0x01c14400 0x100>;

          interrupts = <64>;

          clocks = <&usb_clk 6>, <&ahb_gates 2>;

          phys = <&usbphy 1>;

      };



...

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

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USB OHCI controllers



Required properties:

- compatible : "generic-ohci"

- reg : ohci controller register range (address and length)

- interrupts : ohci controller interrupt



Optional properties:

- big-endian-regs : boolean, set this for hcds with big-endian registers

- big-endian-desc : boolean, set this for hcds with big-endian descriptors

- big-endian : boolean, for hcds with big-endian-regs + big-endian-desc

- no-big-frame-no : boolean, set if frame_no lives in bits [15:0] of HCCA

- remote-wakeup-connected: remote wakeup is wired on the platform

- num-ports : u32, to override the detected port count

- clocks : a list of phandle + clock specifier pairs. In case of Renesas

	   R-Car Gen3 SoCs:

	   - if a host only channel: first clock should be host.

	   - if a USB DRD channel: first clock should be host and second one

				   should be peripheral.

- phys : see usb-hcd.txt in the current directory

- resets : a list of phandle + reset specifier pairs



additionally the properties from usb-hcd.txt (in the current directory) are

supported.



Example:



	ohci0: usb@1c14400 {

		compatible = "allwinner,sun4i-a10-ohci", "generic-ohci";

		reg = <0x01c14400 0x100>;

		interrupts = <64>;

		clocks = <&usb_clk 6>, <&ahb_gates 2>;

		phys = <&usbphy 1>;

		phy-names = "usb";

	};