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dt-bindings: usb: Convert FOTG210 to dt schema

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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: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220925123546.770843-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Linus Walleij 2022-09-25 14:35:46 +02:00 committed by Greg Kroah-Hartman
parent 1c703e29da
commit fb87c979fd
2 changed files with 77 additions and 35 deletions
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35
Documentation/devicetree/bindings/usb/faraday,fotg210.txt
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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;
};

77
Documentation/devicetree/bindings/usb/faraday,fotg210.yaml Normal file
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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";
};