From patchwork Wed Feb 26 23:03:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tao Ren X-Patchwork-Id: 11407453 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CFC74930 for ; Wed, 26 Feb 2020 23:04:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AE29C24650 for ; Wed, 26 Feb 2020 23:04:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="CNQku0uc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728091AbgBZXER (ORCPT ); Wed, 26 Feb 2020 18:04:17 -0500 Received: from mail-pg1-f196.google.com ([209.85.215.196]:39491 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728056AbgBZXEQ (ORCPT ); Wed, 26 Feb 2020 18:04:16 -0500 Received: by mail-pg1-f196.google.com with SMTP id j15so391940pgm.6; Wed, 26 Feb 2020 15:04:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=tCAa6W32aZ6QEKpToe4fyzvDQPNVxEnlp17UdPCzM6s=; b=CNQku0uc3KAdlVn5+f/fITVzFDBSHYXMdo+LQ+8BVaz5Ht/O9aBWdkHEyNAVEACBKV uICQYcmmIle6na4NfMwdwB+RIKkkOVmrN7OkS11Bji2m331jj6F3aYPwDOvGGNUHye3I mGRlKp62czjkuztPiHmWW+KkfYVJlg1iQdnTVUk+C37gPgHC7ghJ58Xpj4KGjGKMqVYv gDLWHwfkFWFqP7TYdRDYPDqxSTkiqnFKRFSuIwghiWJyyWL1t4ZQ7lVfpEkYKXj91wIE fBqi7TVT7I9r0FamqmLRcL1Ff4vCvLqYAQGY1ns0Ka9X9xeIi/tO/w0jnj6l1bjC62wc 9RKA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=tCAa6W32aZ6QEKpToe4fyzvDQPNVxEnlp17UdPCzM6s=; b=SUeWJyiQm71Luifyu3a2obcMVacaPMmCnRnVkk+pWhsHq5vQ87lHrAwr73TaDo1H3O 6qq159DUIKqQRhOf81d7hM+wuWOhdqmkpoq5uYpHEc1jPI2OLVKLR+HgTK3hWtlcr41/ CjOkNxxzbyLMvpK7lKH7k2P89/arUgSIUJQvm0sJZm/CqEYUE7tkHD2906GzbTzgjK3Q ZwuBEEeR3tLWDg2KMLVFv9hcoO5xijucqCIuYCj3eR7M0F+hQEBqwZ9AF+mZRoogFIzs WR3/2XIH6neTfDDLk8fTvKvIIihIPKSYohEcAor/amnLEu88KzX6WyS7LGu6IVl5kmbM jL4Q== X-Gm-Message-State: APjAAAV8PQvkraAGR9RN53MPml9GQv0L8Kzr+Dal27bcqX1Rd0/KV/28 +bfeYdwJsZ5ZNmShV5InTCY= X-Google-Smtp-Source: APXvYqxhOPuxfNONXmDQxDXVEgm8yFWi7DxNNyLfDQf3TB7RUJQjT+qTeMMjNtBejIG2YsmlSgqcvA== X-Received: by 2002:aa7:9f90:: with SMTP id z16mr1025096pfr.161.1582758254295; Wed, 26 Feb 2020 15:04:14 -0800 (PST) Received: from taoren-ubuntu-R90MNF91.thefacebook.com ([2620:10d:c090:500::7:5ebf]) by smtp.gmail.com with ESMTPSA id 3sm3912621pjg.27.2020.02.26.15.04.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Feb 2020 15:04:12 -0800 (PST) From: rentao.bupt@gmail.com To: Felipe Balbi , Greg Kroah-Hartman , Joel Stanley , Andrew Jeffery , Benjamin Herrenschmidt , Chunfeng Yun , Colin Ian King , Stephen Boyd , Rob Herring , Mark Rutland , linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, taoren@fb.com Cc: Tao Ren Subject: [PATCH v4 7/7] dt-bindings: usb: add documentation for aspeed usb-vhub Date: Wed, 26 Feb 2020 15:03:46 -0800 Message-Id: <20200226230346.672-8-rentao.bupt@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200226230346.672-1-rentao.bupt@gmail.com> References: <20200226230346.672-1-rentao.bupt@gmail.com> Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Tao Ren Add device tree binding documentation for aspeed usb-vhub driver. Signed-off-by: Tao Ren Reviewed-by: Joel Stanley --- No change in v2/v3/v4: - the patch is added to the patch series since v4. .../bindings/usb/aspeed,usb-vhub.yaml | 71 +++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/aspeed,usb-vhub.yaml diff --git a/Documentation/devicetree/bindings/usb/aspeed,usb-vhub.yaml b/Documentation/devicetree/bindings/usb/aspeed,usb-vhub.yaml new file mode 100644 index 000000000000..6ebae46641e5 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/aspeed,usb-vhub.yaml @@ -0,0 +1,71 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# Copyright (c) 2020 Facebook Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/aspeed,usb-vhub.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ASPEED USB 2.0 Virtual Hub Controller + +maintainers: + - Felipe Balbi + +description: |+ + The ASPEED USB 2.0 Virtual Hub Controller implements 1 set of USB Hub + register and several sets of Device and Endpoint registers to support + the Virtual Hub's downstream USB devices. + + Supported number of devices and endpoints vary depending on hardware + revisions. AST2400 and AST2500 Virtual Hub supports 5 downstream devices + and 15 generic endpoints, while AST2600 Virtual Hub supports 7 downstream + devices and 21 generic endpoints. + +properties: + compatible: + enum: + - aspeed,ast2400-usb-vhub + - aspeed,ast2500-usb-vhub + - aspeed,ast2600-usb-vhub + + reg: + maxItems: 1 + description: Common configuration registers + + clocks: + maxItems: 1 + description: The Virtual Hub Controller clock gate + + interrupts: + maxItems: 1 + + aspeed,vhub-downstream-ports: + description: Number of downstream ports supported by the Virtual Hub + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + + aspeed,vhub-generic-endpoints: + description: Number of generic endpoints supported by the Virtual Hub + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + +required: + - compatible + - reg + - clocks + - interrupts + - aspeed,vhub-downstream-ports + - aspeed,vhub-generic-endpoints + +additionalProperties: false + +examples: + - | + #include + vhub: usb-vhub@1e6a0000 { + compatible = "aspeed,ast2500-usb-vhub"; + reg = <0x1e6a0000 0x300>; + interrupts = <5>; + clocks = <&syscon ASPEED_CLK_GATE_USBPORT1CLK>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usb2ad_default>; + };