From patchwork Thu Nov 19 06:32:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Patel, Utkarsh H" X-Patchwork-Id: 11916559 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 24D7EC64E7A for ; Thu, 19 Nov 2020 06:34:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E380B2158C for ; Thu, 19 Nov 2020 06:34:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726205AbgKSGeA (ORCPT ); Thu, 19 Nov 2020 01:34:00 -0500 Received: from mga18.intel.com ([134.134.136.126]:60908 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725802AbgKSGeA (ORCPT ); Thu, 19 Nov 2020 01:34:00 -0500 IronPort-SDR: bXDUlx1VVyyb9WgQjOcTykYrMl/ospheTLQXSTuH++0l2lzb/FFiRsybtHqQ2GFZ+sAez283Z2 rOMcK4iddFsQ== X-IronPort-AV: E=McAfee;i="6000,8403,9809"; a="159012429" X-IronPort-AV: E=Sophos;i="5.77,489,1596524400"; d="scan'208";a="159012429" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Nov 2020 22:33:59 -0800 IronPort-SDR: dBw0Q2tNdWSWLpD2JbEBKmH5WP8raXhxKZrDPAocpKJ/jE8dsp9EPjQBT2gEORGZXC0YZDP7DM /LQw4k2S7aCw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,489,1596524400"; d="scan'208";a="544877885" Received: from uhpatel-desk4.jf.intel.com (HELO uhpatel-desk4.intel.com) ([10.23.15.15]) by orsmga005.jf.intel.com with ESMTP; 18 Nov 2020 22:33:59 -0800 From: Utkarsh Patel To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Cc: heikki.krogerus@linux.intel.com, pmalani@chromium.org, enric.balletbo@collabora.com, rajmohan.mani@intel.com, azhar.shaikh@intel.com, Utkarsh Patel Subject: [PATCH v3 1/4] usb: typec: Use Thunderbolt 3 cable discover mode VDO in Enter_USB message Date: Wed, 18 Nov 2020 22:32:08 -0800 Message-Id: <20201119063211.2264-2-utkarsh.h.patel@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201119063211.2264-1-utkarsh.h.patel@intel.com> References: <20201119063211.2264-1-utkarsh.h.patel@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org When Thunderbolt 3 cable is being used to create USB4 connection, use Thunderbolt 3 discover mode VDO to fill details such as active cable plug link training and cable rounded support. With USB4 cables, these VDO members need not be filled. Suggested-by: Heikki Krogerus Signed-off-by: Utkarsh Patel --- Changes in v3: - Changed the commit mesage to reflect why TBT3 VDO is being used. - Added more details in the header file about the usage of TBT3 VDO. Changes in v2: - No change. -- --- include/linux/usb/typec.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h index 6be558045942..25731ed863fa 100644 --- a/include/linux/usb/typec.h +++ b/include/linux/usb/typec.h @@ -75,6 +75,10 @@ enum typec_orientation { /* * struct enter_usb_data - Enter_USB Message details * @eudo: Enter_USB Data Object + * @tbt_cable_vdo: TBT3 Cable Discover Mode Response + * @tbt_cable_vdo needs to be filled with details of active cable plug link + * training and cable rounded support when thunderbolt 3 cable is being used to + * create USB4 connection. Do not fill this in case of USB4 cable. * @active_link_training: Active Cable Plug Link Training * * @active_link_training is a flag that should be set with uni-directional SBRX @@ -83,6 +87,7 @@ enum typec_orientation { */ struct enter_usb_data { u32 eudo; + u32 tbt_cable_vdo; unsigned char active_link_training:1; };