From patchwork Mon Sep 28 17:13:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthias Kaehlcke X-Patchwork-Id: 258370 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=-13.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 27730C2D0A8 for ; Mon, 28 Sep 2020 17:14:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E7A2F20773 for ; Mon, 28 Sep 2020 17:14:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="fUmFEKMP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726670AbgI1ROA (ORCPT ); Mon, 28 Sep 2020 13:14:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37338 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726661AbgI1RN7 (ORCPT ); Mon, 28 Sep 2020 13:13:59 -0400 Received: from mail-pj1-x1041.google.com (mail-pj1-x1041.google.com [IPv6:2607:f8b0:4864:20::1041]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9498FC0613CE for ; Mon, 28 Sep 2020 10:13:59 -0700 (PDT) Received: by mail-pj1-x1041.google.com with SMTP id b17so1017830pji.1 for ; Mon, 28 Sep 2020 10:13:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=6LRa3EvjxYw5aX67BhkFrS+Y1RXh3J3rTX/vMwJ4fBY=; b=fUmFEKMPipnra4fmuQoqW2QD7diKt59CdvKRgJUQsIz3kme6UzweIUnkraR8O8Dxe+ Lnj32eVJfWh211rHwYWM214y6149q4KKfvonKPYpPw0+E2VmREcBHn9tBfuDTm6HxMxk DnPAvbL8Hr7mCPlxxhDX5GFz9Ta8qYSDLN2lQ= 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:mime-version :content-transfer-encoding; bh=6LRa3EvjxYw5aX67BhkFrS+Y1RXh3J3rTX/vMwJ4fBY=; b=MbICtrVDLzvj8cWV9X9HjdcF8i6DOYw+NjpuVr6Vh3UohRsTn0BYZJJhX1ZHBXnank bVk3HB9NmB7wWziMbC0UMTgsKWR2JHPoo0/cZlPyoGyh7QcQq0EZiYOPh0wSTLHiciIh sEFe2mBh8iZNry/a4OUwOl/iyRp2j610y9NoOZHTP7uSnbJSPLRuyVUhHxGQS2iBDe/s Nj2sZ1bOkqInqlyapkgOQ9doKNiFPHUITMuDzRjH1O3ZpXDDuTgtNcrugb7SSn8R3U1k roC7L6rAFSazw72iobB6haVb7OrUM0kLN5s/LXQU7hn9nARTaaKp9hWsGRoT9j/sLpON UnnQ== X-Gm-Message-State: AOAM533CBzFyQom0F7K3rx1QLfuNx+j1nA4s0o9Ll6G21bYSGt6jZEOx lXBIrfMRbTihhHRmUGJENvbfeQ== X-Google-Smtp-Source: ABdhPJyy/zNJpHFnMQFB7JuPIm4GDw3cJVD1GeygsRruKUtVR+7mZzv+HgAc6/mIiMlJZgHS/5Q9Wg== X-Received: by 2002:a17:90a:ca17:: with SMTP id x23mr263620pjt.96.1601313239051; Mon, 28 Sep 2020 10:13:59 -0700 (PDT) Received: from localhost ([2620:15c:202:1:f693:9fff:fef4:e70a]) by smtp.gmail.com with ESMTPSA id gq14sm1869082pjb.44.2020.09.28.10.13.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 28 Sep 2020 10:13:58 -0700 (PDT) From: Matthias Kaehlcke To: Greg Kroah-Hartman , Rob Herring , Frank Rowand Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Bastien Nocera , Stephen Boyd , Douglas Anderson , Alan Stern , Ravi Chandra Sadineni , Krzysztof Kozlowski , devicetree@vger.kernel.org, Peter Chen , Matthias Kaehlcke Subject: [PATCH v4 1/2] dt-bindings: usb: Add binding for discrete onboard USB hubs Date: Mon, 28 Sep 2020 10:13:54 -0700 Message-Id: <20200928101326.v4.1.I248292623d3d0f6a4f0c5bc58478ca3c0062b49a@changeid> X-Mailer: git-send-email 2.28.0.709.gb0816b6eb0-goog 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 Acked-by: Alan Stern Reviewed-by: Douglas Anderson --- (no changes since v3) Changes in v3: - updated commit message - removed recursive reference to $self - adjusted 'compatible' definition to support multiple entries - changed USB controller phandle to be a node Changes in v2: - removed 'wakeup-source' and 'power-off-in-suspend' properties - consistently use spaces for indentation in example .../bindings/usb/onboard_usb_hub.yaml | 54 +++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/onboard_usb_hub.yaml diff --git a/Documentation/devicetree/bindings/usb/onboard_usb_hub.yaml b/Documentation/devicetree/bindings/usb/onboard_usb_hub.yaml new file mode 100644 index 000000000000..c9783da3e75c --- /dev/null +++ b/Documentation/devicetree/bindings/usb/onboard_usb_hub.yaml @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/onboard_usb_hub.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Binding for onboard USB hubs + +maintainers: + - Matthias Kaehlcke + +properties: + compatible: + items: + - enum: + - realtek,rts5411 + - const: onboard-usb-hub + + vdd-supply: + description: + phandle to the regulator that provides power to the hub. + +required: + - compatible + - vdd-supply + +examples: + - | + usb_hub: usb-hub { + compatible = "realtek,rts5411", "onboard-usb-hub"; + vdd-supply = <&pp3300_hub>; + }; + + usb_controller { + dr_mode = "host"; + #address-cells = <1>; + #size-cells = <0>; + + /* 2.0 hub on port 1 */ + hub@1 { + compatible = "usbbda,5411"; + reg = <1>; + hub = <&usb_hub>; + }; + + /* 3.0 hub on port 2 */ + hub@2 { + compatible = "usbbda,411"; + reg = <2>; + hub = <&usb_hub>; + }; + }; + +...