From patchwork Wed Feb 10 17:10:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthias Kaehlcke X-Patchwork-Id: 380610 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8BD18C433E0 for ; Wed, 10 Feb 2021 17:12:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 45B7C64DFF for ; Wed, 10 Feb 2021 17:12:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232218AbhBJRLm (ORCPT ); Wed, 10 Feb 2021 12:11:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232193AbhBJRLf (ORCPT ); Wed, 10 Feb 2021 12:11:35 -0500 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 83CD3C061756 for ; Wed, 10 Feb 2021 09:10:51 -0800 (PST) Received: by mail-pj1-x102f.google.com with SMTP id z9so1501708pjl.5 for ; Wed, 10 Feb 2021 09:10:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ru6h1j/YIj3xrtPVTo1pv1Pz995jHBhEUi/qYOZbRz8=; b=Ff+N/H43BG+I/T4N2pdZRNi7nfRY3HNUUgxDLHi0WCBgmYyTPevEO80FjZACgUen76 QtgY0n9Wngtuj9hgJyj2VRPGwMq9e+dl7XA5WgQgq2jnf6bSXpLAElrg/9s/YaqMQbLb N9GVibzSyhsAczUaidKOXXFNsh+s8Q/rIBazI= 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:mime-version:content-transfer-encoding; bh=ru6h1j/YIj3xrtPVTo1pv1Pz995jHBhEUi/qYOZbRz8=; b=n1R64HACntwK9J7CT6Cls3OlnV+ZbeOJFYWi4mGrsGwqD8mn9UdcB3lJ6IF3l4nwL+ fS5kxkxTAKpDwUA6TKx39tUyUOr0Qpj7ikBmizetOv1oftLILajinykn0DLymbEFsLg3 qnzISXjlw6zOx8Zf7AQNGeUk6FNoTjhxDUGtjI48NhGndwebvPDlXOAvnQm94Gf6R/aA ZSjkxVFyZrsxnN31xrp5DNvomDzDm2R8K6oxILzJFz8dCdKVbuZetCNBTWmm0Ry3EVH6 k/uC0eKBX9ArTzYn/F6sLF09nkAvkc9MMzVUIBYlm/Ls0bR1oayOtFCdyKORAWXT+TMs N2eQ== X-Gm-Message-State: AOAM531u6YBHBI8vT2h8EZyNkBgTpt7oZovo+sKerh3JwzkuQCX/8SEO RpCVeYEoSqW1OUQ/ZB0H2Rd4zg== X-Google-Smtp-Source: ABdhPJwJE8+kZQK9NPhmP8pTGBRiXX6lDO1NUXzvaYRJ/+GOql3oRTgZ0ueQPWa5utTYrgbWQ43V5A== X-Received: by 2002:a17:90a:8c87:: with SMTP id b7mr4114508pjo.158.1612977050513; Wed, 10 Feb 2021 09:10:50 -0800 (PST) Received: from localhost ([2620:15c:202:1:d8e6:826a:fc50:2158]) by smtp.gmail.com with UTF8SMTPSA id y24sm2898957pfr.152.2021.02.10.09.10.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 10 Feb 2021 09:10:49 -0800 (PST) From: Matthias Kaehlcke To: Greg Kroah-Hartman , Rob Herring , Frank Rowand Cc: devicetree@vger.kernel.org, Peter Chen , Stephen Boyd , Alan Stern , Ravi Chandra Sadineni , Bastien Nocera , linux-kernel@vger.kernel.org, Douglas Anderson , linux-usb@vger.kernel.org, Krzysztof Kozlowski , Matthias Kaehlcke Subject: [PATCH v5 1/4] dt-bindings: usb: Add binding for discrete onboard USB hubs Date: Wed, 10 Feb 2021 09:10:36 -0800 Message-Id: <20210210091015.v5.1.I248292623d3d0f6a4f0c5bc58478ca3c0062b49a@changeid> X-Mailer: git-send-email 2.30.0.478.g8a0d178c01-goog In-Reply-To: <20210210171040.684659-1-mka@chromium.org> References: <20210210171040.684659-1-mka@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Discrete onboard USB hubs (an example for such a hub is the Realtek RTS5411) need to be powered and may require initialization of other resources (like GPIOs or clocks) to work properly. This adds a device tree binding for these hubs. Signed-off-by: Matthias Kaehlcke --- Changes in v5: - updated 'title' - only use standard USB compatible strings - deleted 'usb_hub' node - renamed 'usb_controller' node to 'usb-controller' - removed labels from USB nodes - added 'vdd-supply' to USB nodes Changes in v4: - none Changes in v3: - updated commit message - removed recursive reference to $self - adjusted 'compatible' definition to support multiple entries - changed USB controller phandle to be a node Changes in v2: - removed 'wakeup-source' and 'power-off-in-suspend' properties - consistently use spaces for indentation in example .../bindings/usb/onboard_usb_hub.yaml | 49 +++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/onboard_usb_hub.yaml diff --git a/Documentation/devicetree/bindings/usb/onboard_usb_hub.yaml b/Documentation/devicetree/bindings/usb/onboard_usb_hub.yaml new file mode 100644 index 000000000000..bf4ec52e6c7b --- /dev/null +++ b/Documentation/devicetree/bindings/usb/onboard_usb_hub.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/onboard_usb_hub.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Binding for discrete onboard USB hubs + +maintainers: + - Matthias Kaehlcke + +properties: + compatible: + items: + - enum: + - usbbda,5411 + - usbbda,411 + + vdd-supply: + description: + phandle to the regulator that provides power to the hub. + +required: + - compatible + - vdd-supply + +examples: + - | + usb-controller { + dr_mode = "host"; + #address-cells = <1>; + #size-cells = <0>; + + /* 2.0 hub on port 1 */ + hub_2_0: hub@1 { + compatible = "usbbda,5411"; + reg = <1>; + vdd-supply = <&pp3300_hub>; + }; + + /* 3.0 hub on port 2 */ + hub_3_0: hub@2 { + compatible = "usbbda,411"; + reg = <2>; + vdd-supply = <&pp3300_hub>; + }; + }; + +...