Commit 41e29190 authored by Martin Blumenstingl's avatar Martin Blumenstingl Committed by Vinod Koul
Browse files

dt-bindings: phy: meson8b-usb2: Convert to json-schema 



Now that we have the DT validation in place, let's convert the device
tree bindings for the Amlogic Meson8, Meson8b, Meson8m2 and GXBB USB2
PHY over to a YAML schema.

While here, also add the fallback compatible string
"amlogic,meson-gxbb-usb2-phy" which is already used in
arch/arm/boot/dts/meson{,8,8b}.dtsi.

Signed-off-by: default avatarMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: default avatarThomas Graichen <thomas.graichen@gmail.com>
Link: https://lore.kernel.org/r/20200512222424.549351-2-martin.blumenstingl@googlemail.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 4127cbcd

Documentation/devicetree/bindings/phy/amlogic,meson8b-usb2-phy.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: "http://devicetree.org/schemas/phy/amlogic,meson8b-usb2-phy.yaml#"

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



title: Amlogic Meson8, Meson8b, Meson8m2 and GXBB USB2 PHY



maintainers:

  - Martin Blumenstingl <martin.blumenstingl@googlemail.com>



properties:

  compatible:

    oneOf:

      - items:

          - enum:

              - amlogic,meson8-usb2-phy

              - amlogic,meson8b-usb2-phy

          - const: amlogic,meson-mx-usb2-phy

      - const: amlogic,meson-gxbb-usb2-phy



  reg:

    maxItems: 1



  clocks:

    minItems: 2



  clock-names:

    items:

      - const: usb_general

      - const: usb



  resets:

    minItems: 1



  "#phy-cells":

    const: 0



  phy-supply:

    description:

      Phandle to a regulator that provides power to the PHY. This

      regulator will be managed during the PHY power on/off sequence.



required:

  - compatible

  - reg

  - clocks

  - clock-names

  - "#phy-cells"



additionalProperties: false



examples:

  - |

    usb-phy@c0000000 {

      compatible = "amlogic,meson-gxbb-usb2-phy";

      reg = <0xc0000000 0x20>;

      resets = <&reset_usb_phy>;

      clocks = <&clk_usb_general>, <&reset_usb>;

      clock-names = "usb_general", "usb";

      phy-supply = <&usb_vbus>;

      #phy-cells = <0>;

    };

Documentation/devicetree/bindings/phy/meson8b-usb2-phy.txt

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* Amlogic Meson8, Meson8b and GXBB USB2 PHY



Required properties:

- compatible:	Depending on the platform this should be one of:

	"amlogic,meson8-usb2-phy"

	"amlogic,meson8b-usb2-phy"

	"amlogic,meson-gxbb-usb2-phy"

- reg:		The base address and length of the registers

- #phys-cells:	should be 0 (see phy-bindings.txt in this directory)

- clocks:	phandle and clock identifier for the phy clocks

- clock-names:	"usb_general" and "usb"



Optional properties:

- resets:	reference to the reset controller

- phy-supply:	see phy-bindings.txt in this directory





Example:



usb0_phy: usb-phy@c0000000 {

	compatible = "amlogic,meson-gxbb-usb2-phy";

	#phy-cells = <0>;

	reg = <0x0 0xc0000000 0x0 0x20>;

	resets = <&reset RESET_USB_OTG>;

	clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB0>;

	clock-names = "usb_general", "usb";

	phy-supply = <&usb_vbus>;

};