From patchwork Wed Jan 31 21:18:06 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thinh Nguyen X-Patchwork-Id: 868077 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3zWx1H04Q7z9sR8 for ; Thu, 1 Feb 2018 08:18:11 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753132AbeAaVSJ (ORCPT ); Wed, 31 Jan 2018 16:18:09 -0500 Received: from us01smtprelay-2.synopsys.com ([198.182.47.9]:41164 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753131AbeAaVSI (ORCPT ); Wed, 31 Jan 2018 16:18:08 -0500 Received: from mailhost.synopsys.com (mailhost3.synopsys.com [10.12.238.238]) by smtprelay.synopsys.com (Postfix) with ESMTP id 3BB2924E0CB1; Wed, 31 Jan 2018 13:18:08 -0800 (PST) Received: from mailhost.synopsys.com (localhost [127.0.0.1]) by mailhost.synopsys.com (Postfix) with ESMTP id 219F535A; Wed, 31 Jan 2018 13:18:08 -0800 (PST) Received: from US01WEHTC3.internal.synopsys.com (us01wehtc3.internal.synopsys.com [10.15.84.232]) by mailhost.synopsys.com (Postfix) with ESMTP id 09582359; Wed, 31 Jan 2018 13:18:08 -0800 (PST) Received: from US01WEHTC1.internal.synopsys.com (10.12.239.235) by US01WEHTC3.internal.synopsys.com (10.15.84.232) with Microsoft SMTP Server (TLS) id 14.3.266.1; Wed, 31 Jan 2018 13:18:07 -0800 Received: from te-lab16 (10.13.184.19) by us01wehtc1.internal.synopsys.com (10.12.239.236) with Microsoft SMTP Server (TLS) id 14.3.266.1; Wed, 31 Jan 2018 13:18:06 -0800 Received: by te-lab16 (sSMTP sendmail emulation); Wed, 31 Jan 2018 13:18:06 -0800 Date: Wed, 31 Jan 2018 13:18:06 -0800 Message-ID: <5b030826f0805ff3595eddba149e1e439a3a3de5.1517428812.git.thinhn@synopsys.com> In-Reply-To: References: From: Thinh Nguyen Subject: [PATCH v4 12/15] usb: dwc3: Add disabling of start_transfer failure quirk To: Felipe Balbi , Thinh Nguyen , , , Rob Herring , Mark Rutland CC: John Youn MIME-Version: 1.0 X-Originating-IP: [10.13.184.19] Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org In DWC_usb31 version 1.70a-ea06 and prior needs a SW workaround for isoc START TRANSFER command failure. However, some affected versions may have RTL patches to fix this without a SW workaround. Add this quirk to disable the SW workaround when it is not needed. Synopsys STAR 9001202023: Wrong microframe number for isochronous IN endpoints. Cc: John Youn Signed-off-by: Thinh Nguyen --- Documentation/devicetree/bindings/usb/dwc3.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt index e2c1edcd83dd..98b4da23c595 100644 --- a/Documentation/devicetree/bindings/usb/dwc3.txt +++ b/Documentation/devicetree/bindings/usb/dwc3.txt @@ -15,6 +15,9 @@ Optional properties: - phys: from the *Generic PHY* bindings - phy-names: from the *Generic PHY* bindings; supported names are "usb2-phy" or "usb3-phy". + - snps,dis-start-transfer-quirk: when set, disable isoc START TRANSFER command + failure SW work-around for DWC_usb31 version 1.70a-ea06 + and prior. - snps,usb3_lpm_capable: determines if platform is USB3 LPM capable - snps,disable_scramble_quirk: true when SW should disable data scrambling. Only really useful for FPGA builds.