From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 782BFC4360C for ; Wed, 2 Oct 2019 23:16:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4C07E222BE for ; Wed, 2 Oct 2019 23:16:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="XuU6hHtC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728607AbfJBXQX (ORCPT ); Wed, 2 Oct 2019 19:16:23 -0400 Received: from mail-pl1-f193.google.com ([209.85.214.193]:40492 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728516AbfJBXQX (ORCPT ); Wed, 2 Oct 2019 19:16:23 -0400 Received: by mail-pl1-f193.google.com with SMTP id d22so561339pll.7 for ; Wed, 02 Oct 2019 16:16:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=ze/XvAAk8GBZMksPYjyDCpmqV8AGCwQH61JmBZ7VYXE=; b=XuU6hHtCbzgnLgj5xFdd29USBSRIe9zpmWPOLYUJB/YMxHldDaP1t3RdXqKU7+9qST CHAm4YD7iyFga95zzDWl2BjqU7MUMTB3jy4xz1GdTiRkdD5XgK9GOF16bc+n1vXBwFTs cMRj5LW+ej1CyJRz6V9q57XBmn+T6zAnJz5PabxfyCmUJVXoe9vngSvvZmpQ/kbUIbMa +htweaej41pOqioUGALldV5jmpQexr9STl2LcRl08StyUthb17t34BXsB6Y8avXbOWPG 50XyAz92YjpfMHOFwtvoST77qm5oxCyFltxTEA2eGtbBN1yVvp8nGP7eMXXN+zGAZAp8 6SEQ== 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; bh=ze/XvAAk8GBZMksPYjyDCpmqV8AGCwQH61JmBZ7VYXE=; b=U1ITPeJ+qr3PfZ9qhM6+mVkeUlD5s0KcOi9ohSBlcvqpAxWjyJ9vECCJLlwD+JgfEc fcI/Oe8RFL79bwTMJ8RBsMQEqcyZDTEKqjBvZ02GUkemsfJaM9iwvGx8o8f/C9bbVZZm K7LIHWJOO9ddPSzIFQe0d2o85RFMzOl0MpsiBfZDZPGkXTFamFTTrmjT+1iwFE9oXI/E Gfb+m1UUBFFeBT/QObnfuK3DaQo2P1W0d5ZgHU9HSKEzpLqBn12Y0g37l0pAW5vtfyiQ RE4f9KHA3FFz6hBP+uAcaF+FcvRpFGtHa/aHda/fHrbMhZvdSGJubc+OvcqBax/+wMhj SToQ== X-Gm-Message-State: APjAAAVzkGKIxqCnxc3MzqhLLp/vfEjKj2IdG4mCz+wGpF9NHQrxfwE1 fJpsnRpGAitXGYZMZg362D/7TT2ccKY= X-Google-Smtp-Source: APXvYqwKK+QsXsOrigPf5Vzcddlm1GWn4ouIdnrb8vXeJ7P0jW3FJ31myUBhJrIC1NEdFL3iiaRbbg== X-Received: by 2002:a17:902:a40a:: with SMTP id p10mr6399376plq.149.1570058181824; Wed, 02 Oct 2019 16:16:21 -0700 (PDT) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id l7sm288791pjy.12.2019.10.02.16.16.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Oct 2019 16:16:21 -0700 (PDT) From: John Stultz To: lkml Cc: John Stultz , Greg Kroah-Hartman , Rob Herring , Mark Rutland , Heikki Krogerus , Suzuki K Poulose , Chunfeng Yun , Yu Chen , Felipe Balbi , Hans de Goede , Andy Shevchenko , Jun Li , Valentin Schneider , linux-usb@vger.kernel.org, devicetree@vger.kernel.org Subject: [RFC][PATCH 0/3] dwc3 role-switch handling for HiKey960 Date: Wed, 2 Oct 2019 23:16:14 +0000 Message-Id: <20191002231617.3670-1-john.stultz@linaro.org> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I'm just trying to pick up parts of a patch previously by Yu Chen to get HiKey960 dev-board's USB functionality working. The current full patchset can be found here: https://git.linaro.org/people/john.stultz/android-dev.git/log/?id=12289c95c89e0e3173f8da1ebd3a29e52fd50a44 I don't have any real knowledge of the hardware other then the code, and what I can intuit from testing, but I tried to document the previously undocumented bindings as best I could and fixed up a few minor checkpatch issues. I'd greatly appreciate feedback or thoughts! thanks -john Cc: Greg Kroah-Hartman Cc: Rob Herring Cc: Mark Rutland Cc: Heikki Krogerus Cc: Suzuki K Poulose Cc: Chunfeng Yun Cc: Yu Chen Cc: Felipe Balbi Cc: Hans de Goede Cc: Andy Shevchenko Cc: Jun Li Cc: Valentin Schneider Cc: linux-usb@vger.kernel.org Cc: devicetree@vger.kernel.org John Stultz (1): dt-bindings: usb: generic: Add role-switch-default-host binding Yu Chen (2): usb: roles: Add usb role switch notifier. usb: dwc3: Registering a role switch in the DRD code. .../devicetree/bindings/usb/generic.txt | 5 ++ drivers/usb/dwc3/Kconfig | 1 + drivers/usb/dwc3/core.h | 6 ++ drivers/usb/dwc3/drd.c | 78 ++++++++++++++++++- drivers/usb/roles/class.c | 35 ++++++++- include/linux/usb/role.h | 16 ++++ 6 files changed, 139 insertions(+), 2 deletions(-) -- 2.17.1