From patchwork Fri Sep 25 02:42:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thinh Nguyen X-Patchwork-Id: 297510 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=-9.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 B14A7C4346E for ; Fri, 25 Sep 2020 02:42:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 765BA20888 for ; Fri, 25 Sep 2020 02:42:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="kANvUler" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727036AbgIYCmW (ORCPT ); Thu, 24 Sep 2020 22:42:22 -0400 Received: from smtprelay-out1.synopsys.com ([149.117.73.133]:50874 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726764AbgIYCmV (ORCPT ); Thu, 24 Sep 2020 22:42:21 -0400 Received: from mailhost.synopsys.com (sv1-mailhost1.synopsys.com [10.205.2.131]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 6F8FB408D3; Fri, 25 Sep 2020 02:42:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1601001741; bh=9j9IOKYQ+2iz0WIvVdK47pVCx84Ln+dxrwyZJRqySVo=; h=Date:In-Reply-To:References:From:Subject:To:Cc:From; b=kANvUlerY5g2/SX2sECo+zhu2+JGOmKmHHNLux27ibSD3jLi/5qM+JGPnZDzuscXJ 1sO6HFnpwddPHPTbnHhXblPwn9MVeKm5vjpqDYHruOwTDzyBv34sKZjDQxMBl+BiRo cyCdPH3SmY7vAGBUTvKKOy83+77Qq2PPDop5EzZ/tfyIQC1DaOg/avhORkARkOOSrj jlf3V5nARDi07dX4LlaHX9btAa/X1nJiAborY+0K2n6s8gumLdi2nPkqeQfpTV10VA JdoMGh7B7l8+y+M9x3OXP36+DMki/kWwFQ7mLQw7VvbUFw5HHgmB6UENxd4675o0DT NxJhJ2+YrTQ3Q== Received: from te-lab16 (nanobot.internal.synopsys.com [10.10.186.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mailhost.synopsys.com (Postfix) with ESMTPSA id 576E7A01F1; Fri, 25 Sep 2020 02:42:20 +0000 (UTC) Received: by te-lab16 (sSMTP sendmail emulation); Thu, 24 Sep 2020 19:42:20 -0700 Date: Thu, 24 Sep 2020 19:42:20 -0700 Message-Id: <675520b99f9648e8d4f08dd389b1d93c580ffabd.1601001199.git.Thinh.Nguyen@synopsys.com> In-Reply-To: References: X-SNPS-Relay: synopsys.com From: Thinh Nguyen Subject: [PATCH v5 06/12] usb: devicetree: Include USB SSP Gen X x Y To: Felipe Balbi , Greg Kroah-Hartman , Thinh.Nguyen@synopsys.com, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, Rob Herring Cc: John Youn Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org According to the USB 3.2 spec, a super-speed-plus device can operate at gen2x2, gen2x1, or gen1x2. If the USB controller device supports multiple lanes at different transfer rates, the user can specify the HW capability via these new speed strings: "super-speed-plus-gen2x2" "super-speed-plus-gen2x1" "super-speed-plus-gen1x2" If the argument is simply "super-speed-plus", USB controllers should default to their maximum transfer rate and number of lanes. Reviewed-by: Rob Herring Signed-off-by: Thinh Nguyen --- Changes in v5: - Add Reviewed-by: Rob Herring - Rebase on Felipe's testing/next branch - Changed Signed-off-by email to match From: email header Changes in v4: - None Changes in v3: - Use "maximum-speed" to include both the num-lane and transfer rate for SSP - Remove "num-lanes" and "lane-speed-mantissa-gbps" properties Changes in v2: - Make "num-lanes" and "lane-speed-mantissa-gbps" common USB properties Documentation/devicetree/bindings/usb/generic.txt | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/usb/generic.txt b/Documentation/devicetree/bindings/usb/generic.txt index ba472e7aefc9..8541b9571f2f 100644 --- a/Documentation/devicetree/bindings/usb/generic.txt +++ b/Documentation/devicetree/bindings/usb/generic.txt @@ -3,10 +3,13 @@ Generic USB Properties Optional properties: - maximum-speed: tells USB controllers we want to work up to a certain speed. Valid arguments are "super-speed-plus", - "super-speed", "high-speed", "full-speed" and - "low-speed". In case this isn't passed via DT, USB - controllers should default to their maximum HW - capability. + "super-speed-plus-gen2x2", "super-speed-plus-gen2x1", + "super-speed-plus-gen1x2", "super-speed", "high-speed", + "full-speed" and "low-speed". In case this isn't passed + via DT, USB controllers should default to their maximum + HW capability. Similarly, if the argument is + "super-speed-plus", USB controllers should default to + their maximum transfer rate and number of lanes. - dr_mode: tells Dual-Role USB controllers that we want to work on a particular mode. Valid arguments are "host", "peripheral" and "otg". In case this attribute isn't