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=-8.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 DF916ECE587 for ; Tue, 1 Oct 2019 14:21:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B71AF2190F for ; Tue, 1 Oct 2019 14:21:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388859AbfJAOVc (ORCPT ); Tue, 1 Oct 2019 10:21:32 -0400 Received: from mga09.intel.com ([134.134.136.24]:60321 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727096AbfJAOVc (ORCPT ); Tue, 1 Oct 2019 10:21:32 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Oct 2019 07:21:31 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,571,1559545200"; d="scan'208";a="205071389" Received: from lahna.fi.intel.com (HELO lahna) ([10.237.72.157]) by fmsmga001.fm.intel.com with SMTP; 01 Oct 2019 07:21:27 -0700 Received: by lahna (sSMTP sendmail emulation); Tue, 01 Oct 2019 17:21:26 +0300 Date: Tue, 1 Oct 2019 17:21:26 +0300 From: Mika Westerberg To: Mario.Limonciello@dell.com Cc: linux-usb@vger.kernel.org, andreas.noever@gmail.com, michael.jamet@intel.com, YehezkelShB@gmail.com, rajmohan.mani@intel.com, nicholas.johnson-opensource@outlook.com.au, lukas@wunner.de, gregkh@linuxfoundation.org, stern@rowland.harvard.edu, anthony.wong@canonical.com, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH 21/22] thunderbolt: Update documentation with the USB4 information Message-ID: <20191001142126.GX2714@lahna.fi.intel.com> References: <20191001113830.13028-1-mika.westerberg@linux.intel.com> <20191001113830.13028-22-mika.westerberg@linux.intel.com> <5d628533d75b4b00a26c868012d5e5df@AUSX13MPC105.AMER.DELL.COM> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5d628533d75b4b00a26c868012d5e5df@AUSX13MPC105.AMER.DELL.COM> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 01, 2019 at 02:17:01PM +0000, Mario.Limonciello@dell.com wrote: > > > > -----Original Message----- > > From: Mika Westerberg > > Sent: Tuesday, October 1, 2019 6:38 AM > > To: linux-usb@vger.kernel.org > > Cc: Andreas Noever; Michael Jamet; Mika Westerberg; Yehezkel Bernat; Rajmohan > > Mani; Nicholas Johnson; Lukas Wunner; Greg Kroah-Hartman; Alan Stern; > > Limonciello, Mario; Anthony Wong; linux-kernel@vger.kernel.org > > Subject: [RFC PATCH 21/22] thunderbolt: Update documentation with the USB4 > > information > > > > > > [EXTERNAL EMAIL] > > > > Update user's and administrator's guide to mention USB4, how it relates > > to Thunderbolt (it is public spec of Thunderbolt 3) and and how it is > > supported in Linux. > > > > Signed-off-by: Mika Westerberg > > --- > > Documentation/admin-guide/thunderbolt.rst | 27 ++++++++++++++++++----- > > 1 file changed, 22 insertions(+), 5 deletions(-) > > > > diff --git a/Documentation/admin-guide/thunderbolt.rst b/Documentation/admin- > > guide/thunderbolt.rst > > index 898ad78f3cc7..4cbed319133d 100644 > > --- a/Documentation/admin-guide/thunderbolt.rst > > +++ b/Documentation/admin-guide/thunderbolt.rst > > @@ -1,6 +1,25 @@ > > -============= > > - Thunderbolt > > -============= > > +====================== > > + Thunderbolt and USB4 > > +====================== > > +USB4 is the public spec of Thunderbolt 3 with some differences at the > > +register level among other things. There are two different > > +implementations available: firmware connection manager and software > > +connection manager. Typically PCs come with a firmware connection > > +manager for Thunderbolt 3 and early USB4 capable systems. Apple systems > > +on the other hand use software connection manager and the future USB4 > > +compliant PCs follow the suit. > > Future isn't going to age very well. Perhaps refer instead to "later" USB4 compliant > PCs. Yup. > Also, we should be seeing this stuff pop-up outside of PCs. So maybe better > to just call out "devices". Indeed, I'll update this accordingly.