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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 90BB9C2BB1D for ; Tue, 17 Mar 2020 15:22:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 677B920754 for ; Tue, 17 Mar 2020 15:22:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="CXjlKsP5" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726808AbgCQPWH (ORCPT ); Tue, 17 Mar 2020 11:22:07 -0400 Received: from mail-ed1-f66.google.com ([209.85.208.66]:42595 "EHLO mail-ed1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726484AbgCQPWH (ORCPT ); Tue, 17 Mar 2020 11:22:07 -0400 Received: by mail-ed1-f66.google.com with SMTP id b21so16636248edy.9 for ; Tue, 17 Mar 2020 08:22:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=FN6nZxGnOaw3deJgrYU1nB+eySU41aqfgMOvG0B3T1g=; b=CXjlKsP5/eG3tZJGw8EPbB69nbC3nO4ZZQfYtvvX5o2sdeR2vVbOAPJd8ufv4NCETI 02I170hMx6kVh1sjzn69urnNbgExvQeSlkitbDxdyl/uvNwpdojqNN32J5e8ycULPU4L s1HVoS9+wzcMbmrKjBXEtZ2cHoqkq7dRot6Mf/ehXoxd28r12XO9VcMG2gMJCDc5tw1h gBLJlU/Ptq2it9/Xlo5utCg0XqxXmvkPr+n+vcJg1ARiA9tCg2Mex3p5UBXkQb8pCrgt BLAzadrLVthZNCuciVdMd848fwy0bpmh3KryGSNikiM31ny7IGOyUM1ebjPETz6xnQ9d IK/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=FN6nZxGnOaw3deJgrYU1nB+eySU41aqfgMOvG0B3T1g=; b=Tkq/Sx0sQixNvFx1yP/YEdon7iYxG3FFJhG5bWl7VdENQ/UN/cOwA8zYhBvkCYCwRS l8W4nF2bZ/3g2VAZp7hFJt9hIlX6xx7MOgwiWgcgWiPuyL0h6LUW/i0OXe1XmFakdIiu xzWtTfpZRd2IEWNIOmJejdO3wuC77J6dmLzFrduv7p0ScFnBwX1bSGKGraznoxySj726 A5eNhn+TqRYQqifRtQ+Im3ZVDp/vgRmz58WGuaQJ0IOHMV++tR75uRwolJKsQfeYcqm0 peC9bhkiGyh7n3rVixFnBoAYCkZQamQVTkOKVJrAZ61HrlQ1fP/6OPL01ZGiSHxU/1RX qSSA== X-Gm-Message-State: ANhLgQ3McobpwWAmvWtwNycIaz11bTTqvZcvg9FN8/rLtpGdJfJKJert bDWB/a8zNkL3Mc5WMXiA4FNJXA== X-Google-Smtp-Source: ADFU+vsI46bucXrS6vRC98i/tyZ5FW2KRCRZlYWtRXZUfYzkhSt7l9XxjzONQxNkkNmWOvcZUFuTfA== X-Received: by 2002:a05:6402:180e:: with SMTP id g14mr6060137edy.66.1584458524977; Tue, 17 Mar 2020 08:22:04 -0700 (PDT) Received: from [192.168.0.38] ([176.61.57.127]) by smtp.gmail.com with ESMTPSA id bc23sm227198edb.31.2020.03.17.08.22.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 Mar 2020 08:22:04 -0700 (PDT) Subject: Re: [PATCH 7/7] usb: dwc3: qcom: Enable gpio-usb-conn based role-switching To: Bjorn Andersson Cc: balbi@kernel.org, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, jackp@codeaurora.org, robh@kernel.org, Andy Gross , Lee Jones , Philipp Zabel References: <20200311191501.8165-1-bryan.odonoghue@linaro.org> <20200311191501.8165-8-bryan.odonoghue@linaro.org> <20200317063101.GA2778164@ripper> From: Bryan O'Donoghue Message-ID: Date: Tue, 17 Mar 2020 15:22:22 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200317063101.GA2778164@ripper> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 17/03/2020 06:31, Bjorn Andersson wrote: > I don't yet have a sane suggestion on how to redesign the dependency > between the two drivers in order to avoid this, but it's at least not > possible to access the child's state data from dwc3_qcom_probe(). yep, this should be modeled as the dwc3 registering with the parent role-switch, like gpio-usb-conn does with dwc3. I have an idea for a patch, I'll v2 this.