Received: by 2002:a05:6a10:1d13:0:0:0:0 with SMTP id pp19csp1104256pxb; Tue, 17 Aug 2021 04:03:28 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyM9xQ6Kz9Bak/ITVzIOb1B+noWDk9GP0RnDaK7wp/rCabkltpdS8RRjjKah8p9BxoHgbHj X-Received: by 2002:adf:f78b:: with SMTP id q11mr3112388wrp.376.1629198208298; Tue, 17 Aug 2021 04:03:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1629198208; cv=none; d=google.com; s=arc-20160816; b=q1pkE42HeQ2/rpDdEN7o+JRmKPSuI+0WCWO9E7YpPv9aRjqJ4kT+UxckB0TrGtvqGT qNHHF8FH2F9xVrKYcq+R6S9ps7Ns59n1tXeQ6T8cw5pWjCQShhBdL354MYvuoiOO/hsE cshuLpDgcwR8gcB3NckUEC0MBnrpca+b/MxmofXC2fI1YFuVJCVQ40u1y+5KCil4kAvW XdKja987S+iBz0z/+WBlGnpLeWVCpnXftAv6C/CGaH0BChW8Lgsj/C8zwrQ2jH6F8l3/ YcCpGoowsvfyyxt+XpvurnEGNGymghnQXdX8EvZ1vED1Xhva1UpP0xFq+DCefwAXtSp6 ha3g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=tav4DuXSlyT4tQzzAp4qOPDPhA7mogu8leGx04EC+OM=; b=wJlwXhqjqfUTaUxn719dLfiSbJ15TfRUSel7TtVYDO2107lS0yeZcwchj97EIrPz8G 729hlNG3wYPngftMo0wcTH5JlXO2mxG81lK/8ZI9gvtsJkenE1itofCyt8Jk+Y0HNkZ0 hFO8gVkJWTetuCyRkjzI+Ji/ak9WHHxCKxOyyMrsf+6BzLOl9THJSyfl8QdDCHgfBV+I X4TsV2n1RRWGyBcgVKn4Usda7E8UBo9gwmegsCBYkDTDvAuF7h29J3t/IY+TVW9X6W4W GrCKx0m9WIt07YBbvtx1MejS4wJyLH+JOvCSiJI5WphCWiDV38Scxt1dTBU5BdyuXv/d uI7g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id e26si2317681edr.515.2021.08.17.04.03.01; Tue, 17 Aug 2021 04:03:28 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239548AbhHQLBM (ORCPT + 99 others); Tue, 17 Aug 2021 07:01:12 -0400 Received: from mga18.intel.com ([134.134.136.126]:38352 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231515AbhHQLBK (ORCPT ); Tue, 17 Aug 2021 07:01:10 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10078"; a="203194050" X-IronPort-AV: E=Sophos;i="5.84,328,1620716400"; d="scan'208";a="203194050" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Aug 2021 04:00:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,328,1620716400"; d="scan'208";a="593312813" Received: from kuha.fi.intel.com ([10.237.72.162]) by fmsmga001.fm.intel.com with SMTP; 17 Aug 2021 04:00:33 -0700 Received: by kuha.fi.intel.com (sSMTP sendmail emulation); Tue, 17 Aug 2021 14:00:33 +0300 Date: Tue, 17 Aug 2021 14:00:33 +0300 From: Heikki Krogerus To: Icenowy Zheng Cc: Guenter Roeck , Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] usb: typec: tcpm: always rediscover when swapping DR Message-ID: References: <20210813043131.833006-1-icenowy@aosc.io> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > >Why is it necessary to do discovery with data role swap in general? > > I think it could be possible for devices to expose different altmode > with different role. OK. FWIW: Acked-by: Heikki Krogerus thanks, -- heikki