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 7A9CEC35242 for ; Fri, 7 Feb 2020 15:04:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 50C9F21741 for ; Fri, 7 Feb 2020 15:04:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="OLbktre1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727305AbgBGPED (ORCPT ); Fri, 7 Feb 2020 10:04:03 -0500 Received: from mail-wm1-f65.google.com ([209.85.128.65]:39742 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727011AbgBGPEC (ORCPT ); Fri, 7 Feb 2020 10:04:02 -0500 Received: by mail-wm1-f65.google.com with SMTP id c84so3116741wme.4 for ; Fri, 07 Feb 2020 07:04:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:from:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=HMDl4o3rW3O7+RqgrNRzbPCmWSYVjKzp9g+zOGkOoBI=; b=OLbktre1TzHCgrai9hwALDQn2A4u4gf0naTmEJy2ZnmfGcxLqcW7A2TEK1xrf9O0M4 fIx+Hn8OCOImGceqIpPjyscBlxiiuc+0rH2ANPM4DOaUx7ymHXGVPogah36x+V/YL2jV ly3BaYvHJaQZwxtd7nlNRbCxWLdzLqaM2f8J3ANZLgQmvEA5ZGDIpcE7bVESnhQS62F8 VlY4+SqhM3NyqvQI6NrXFGfKCtgHSi8MSzn0X2lL5qKTjrE4qTk4O4rBX8a4KoZKTiSH ya9HuqrGuVpThRONAHxuhpTe9cGvpsY9/RRJ3KhxWmOA7R0jeRXMMwBR2EopsDAaNcpc 8peQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:cc:references:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=HMDl4o3rW3O7+RqgrNRzbPCmWSYVjKzp9g+zOGkOoBI=; b=V1R4KqfJhsmz9qHsYsbVGqd+vHvltZgqs1t6cGlG3RXs+IIHG9hoD+4ixG+qCVe3ZW 6DIElVLupFWcGoqxdA48yxOhUnVNaXver34AslH2KWIz6T9PeAIie0LP4Q0XWRayhr0A /DA5HbCG7NMZbLeSgTaYdz8cgzi0POEImoQ9l31j/YNueiyjvIBhsqV0Ci90fxV5Mkrz csDXLi2DfCK1166wGGHzgP0QSC7m+aBTQeJz1rvOg/bqJTpnYKVY4qZ7pcws62vyzw4X r4Qp9Hc+F/Fgx6YSANXM6h77cnMmWSkkUbhvNf9czi7d4aZ8e1BfqfNCT1alqQZ92I6f iGnQ== X-Gm-Message-State: APjAAAWgBm/ulqnflisbvqhdiUAbQZoQGI20LF01SAkNG1jRrMagbHmb aasVOFi65CuiVslBzBjV9Z5u8A== X-Google-Smtp-Source: APXvYqzzyoqr1jCZCY/KRGQTW/dpbRzFbFLZJzXLdYAJxgaeh9DBWl2aUOBeJTHhN609Fk1V+Qu7Xg== X-Received: by 2002:a05:600c:2207:: with SMTP id z7mr4863923wml.138.1581087840050; Fri, 07 Feb 2020 07:04:00 -0800 (PST) Received: from [192.168.0.38] ([176.61.57.127]) by smtp.gmail.com with ESMTPSA id d9sm3591225wrx.94.2020.02.07.07.03.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 07 Feb 2020 07:03:59 -0800 (PST) Subject: Re: [PATCH v4 09/18] usb: dwc3: qcom: Override VBUS when using gpio_usb_connector From: Bryan O'Donoghue To: Jack Pham Cc: linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, gregkh@linuxfoundation.org, balbi@kernel.org, bjorn.andersson@linaro.org, linux-kernel@vger.kernel.org, Andy Gross , Lee Jones , Philipp Zabel , Manu Gautam References: <20200207015907.242991-1-bryan.odonoghue@linaro.org> <20200207015907.242991-10-bryan.odonoghue@linaro.org> <20200207080729.GA30341@jackp-linux.qualcomm.com> <2bd67925-14cf-5851-14a2-c51a065fac6c@linaro.org> <453bfea7-4085-1a24-84ad-30c7671665e7@linaro.org> Message-ID: <832a97f1-e138-5b2a-755a-c551f7264cbd@linaro.org> Date: Fri, 7 Feb 2020 15:04:05 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.2 MIME-Version: 1.0 In-Reply-To: <453bfea7-4085-1a24-84ad-30c7671665e7@linaro.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On 07/02/2020 10:50, Bryan O'Donoghue wrote: > > Maybe I'm wrong... > > Looking a bit closer at the role-switch code it might be possible to > register multiple devices _as-is_ so long as you have a pointer to the > relevant parent... Soo... its possible to create a new role-switch device relatively easily @usb_role_switch_register() but, the drivers calling the role-switch callback have a 1:1 mapping between role-switch call and receiver. Doing something inside DWC3 <=> DWC3::QCOM looks like less of a rewrite.