Commit fb87c979 authored by Linus Walleij's avatar Linus Walleij Committed by Greg Kroah-Hartman
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dt-bindings: usb: Convert FOTG210 to dt schema



This converts the Faraday FOTG210 OTG USB controller to use
a YAML schema. We add all the right includes for OTG controllers
and make it possible to specify dr_mode and phy.

Cc: devicetree@vger.kernel.org
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220925123546.770843-1-linus.walleij@linaro.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 1c703e29
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Faraday FOTG Host controller

This OTG-capable USB host controller is found in Cortina Systems
Gemini and other SoC products.

Required properties:
- compatible: should be one of:
  "faraday,fotg210"
  "cortina,gemini-usb", "faraday,fotg210"
- reg: should contain one register range i.e. start and length
- interrupts: description of the interrupt line

Optional properties:
- clocks: should contain the IP block clock
- clock-names: should be "PCLK" for the IP block clock

Required properties for "cortina,gemini-usb" compatible:
- syscon: a phandle to the system controller to access PHY registers

Optional properties for "cortina,gemini-usb" compatible:
- cortina,gemini-mini-b: boolean property that indicates that a Mini-B
  OTG connector is in use
- wakeup-source: see power/wakeup-source.txt

Example for Gemini:

usb@68000000 {
	compatible = "cortina,gemini-usb", "faraday,fotg210";
	reg = <0x68000000 0x1000>;
	interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
	clocks = <&cc 12>;
	clock-names = "PCLK";
	syscon = <&syscon>;
	wakeup-source;
};
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2022 Linaro Ltd.
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/faraday,fotg210.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Faraday Technology FOTG210 HS OTG USB 2.0 controller Bindings

maintainers:
  - Linus Walleij <linus.walleij@linaro.org>

allOf:
  - $ref: usb-drd.yaml#
  - $ref: usb-hcd.yaml#

properties:
  compatible:
    oneOf:
      - const: faraday,fotg210
      - items:
          - const: cortina,gemini-usb
          - const: faraday,fotg210

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  clock-names:
    items:
      - const: PCLK

  resets:
    maxItems: 1

  syscon:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: a phandle to the global Gemini system controller on
      Gemini systems

  dr_mode: true

  phys:
    maxItems: 1

  phy-names:
    const: usb2-phy

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/irq.h>
    #include <dt-bindings/clock/cortina,gemini-clock.h>
    #include <dt-bindings/reset/cortina,gemini-reset.h>
    usb0: usb@68000000 {
        compatible = "cortina,gemini-usb", "faraday,fotg210";
        reg = <0x68000000 0x1000>;
        interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
        resets = <&syscon GEMINI_RESET_USB0>;
        clocks = <&syscon GEMINI_CLK_GATE_USB0>;
        clock-names = "PCLK";
        syscon = <&syscon>;
        dr_mode = "host";
    };