Commit 2d6064e9 authored by Raphael Gallais-Pou's avatar Raphael Gallais-Pou Committed by Vinod Koul
Browse files

dt-bindings: phy: st: convert phy-stih407-usb to DT schema 



Convert the st,stih407-usb2-phy binding to DT schema format.

Signed-off-by: default avatarRaphael Gallais-Pou <rgallaispou@gmail.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230823132224.111326-1-rgallaispou@gmail.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 2be22aae

Documentation/devicetree/bindings/phy/phy-stih407-usb.txt

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ST STiH407 USB PHY controller



This file documents the dt bindings for the usb picoPHY driver which is the PHY for both USB2 and USB3

host controllers (when controlling usb2/1.1 devices) available on STiH407 SoC family from STMicroelectronics.



Required properties:

- compatible		: should be "st,stih407-usb2-phy"

- st,syscfg		: phandle of sysconfig bank plus integer array containing phyparam and phyctrl register offsets

- resets		: list of phandle and reset specifier pairs. There should be two entries, one

			  for the whole phy and one for the port

- reset-names		: list of reset signal names. Should be "global" and "port"

See: Documentation/devicetree/bindings/reset/st,stih407-powerdown.yaml

See: Documentation/devicetree/bindings/reset/reset.txt



Example:



usb2_picophy0: usbpicophy@f8 {

	compatible	= "st,stih407-usb2-phy";

	#phy-cells	= <0>;

	st,syscfg	= <&syscfg_core 0x100 0xf4>;

	resets		= <&softreset STIH407_PICOPHY_SOFTRESET>,

			  <&picophyreset STIH407_PICOPHY0_RESET>;

	reset-names	= "global", "port";

};

Documentation/devicetree/bindings/phy/st,stih407-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/st,stih407-usb2-phy.yaml#

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



title: STMicroelectronics STiH407 USB PHY controller



maintainers:

  - Patrice Chotard <patrice.chotard@foss.st.com>



description:

  The USB picoPHY device is the PHY for both USB2 and USB3 host controllers

  (when controlling usb2/1.1 devices) available on STiH407 SoC family from

  STMicroelectronics.



properties:

  compatible:

    const: st,stih407-usb2-phy



  st,syscfg:

    description: Phandle to the syscfg bank

    $ref: /schemas/types.yaml#/definitions/phandle-array

    items:

      - items:

          - description: phandle to syscfg

          - description: phyparam register offset

          - description: phyctrl register offset



  resets:

    items:

      - description: Phandle and reset specifier pair for the whole phy.

      - description: Phandle and reset specifier pair for the port.



  reset-names:

    items:

      - const: global

      - const: port



  "#phy-cells":

    const: 0



required:

  - compatible

  - st,syscfg

  - resets

  - reset-names

  - "#phy-cells"



additionalProperties: false



examples:

  - |

    #include <dt-bindings/reset/stih407-resets.h>

    usb-phy {

        compatible = "st,stih407-usb2-phy";

        #phy-cells = <0>;

        st,syscfg = <&syscfg_core 0x100 0xf4>;

        resets = <&softreset STIH407_PICOPHY_SOFTRESET>,

                 <&picophyreset STIH407_PICOPHY0_RESET>;

        reset-names = "global", "port";

    };

...