From patchwork Thu Aug 17 08:24:32 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: William Wu X-Patchwork-Id: 9905303 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 92A616038C for ; Thu, 17 Aug 2017 08:25:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8147E28A75 for ; Thu, 17 Aug 2017 08:25:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7621028AC6; Thu, 17 Aug 2017 08:25:26 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 172AE28A75 for ; Thu, 17 Aug 2017 08:25:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=c13JpbF3Zglxqzq/xBgOVRBKd+mNBMx/H47PzW+fQEI=; b=c8o cPWa5AdxN0PZ8D5I5bRAwYWgPVmG6a5okend/O1AHqZb/xkmpeanythhM8LMXN8e1TS18xkHpD+1p N7Zge2+VwBL8Pm2Sp8EO7OdUjN40ijiQ278Tm0dKf0xsN3R4Krz6GkJxIq55foRxe/BvK5zwZeiJg u6jTUhGaMVRgWCbKh9VJ+J3yTnHMArHjH71AH2HfsV94k7EV7hUZkuyL/MKkdx9+x+X2J/LcB1WuA RwbbjoWCu0Cc09AoJSkhUTxTKRgqnuGi0QOvVcPVIXjb0Laai1Q58y7d2FrbYbntFIu37kWsy26a+ 0l8Y4bwkowCGA+VN/6Z6JoD/HWe5A0g==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1diG7E-00051Q-TD; Thu, 17 Aug 2017 08:25:20 +0000 Received: from regular1.263xmail.com ([211.150.99.136]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1diG75-0003dt-MK; Thu, 17 Aug 2017 08:25:14 +0000 Received: from william.wu?rock-chips.com (unknown [192.168.167.193]) by regular1.263xmail.com (Postfix) with ESMTP id E578E52; Thu, 17 Aug 2017 16:24:44 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost.localdomain (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTPA id 93D96308; Thu, 17 Aug 2017 16:24:42 +0800 (CST) X-RL-SENDER: william.wu@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: william.wu@rock-chips.com X-UNIQUE-TAG: <5e409a314493af80b265a052ece61c6c> X-ATTACHMENT-NUM: 0 X-SENDER: wulf@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 25230ZNIN8N; Thu, 17 Aug 2017 16:24:44 +0800 (CST) From: William Wu To: heiko@sntech.de Subject: [PATCH] arm64: dts: rockchip: disable tx ipgap linecheck for rk3399 dwc3 Date: Thu, 17 Aug 2017 16:24:32 +0800 Message-Id: <1502958272-1384-1-git-send-email-william.wu@rock-chips.com> X-Mailer: git-send-email 2.0.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170817_012512_030433_D93A6EE9 X-CRM114-Status: UNSURE ( 5.04 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, huangtao@rock-chips.com, frank.wang@rock-chips.com, linux@armlinux.org.uk, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, robh+dt@kernel.org, william.wu@rock-chips.com, daniel.meng@rock-chips.com, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP RK3399 USB DWC3 controller has a issue that FS/LS devices not recognized if inserted through USB 3.0 HUB. It's because that the inter-packet delay between the SSPLIT token to SETUP token is about 566ns, more then the USB spec requirement. This patch adds a quirk "snps,dis-tx-ipgap-linecheck-quirk" to disable the u2mac linestate check to decrease the SSPLIT token to SETUP token inter-packet delay from 566ns to 466ns. Signed-off-by: William Wu --- arch/arm64/boot/dts/rockchip/rk3399.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi index 27a4616..69cb311 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi @@ -412,6 +412,7 @@ snps,dis-u2-freeclk-exists-quirk; snps,dis_u2_susphy_quirk; snps,dis-del-phy-power-chg-quirk; + snps,dis-tx-ipgap-linecheck-quirk; status = "disabled"; }; }; @@ -439,6 +440,7 @@ snps,dis-u2-freeclk-exists-quirk; snps,dis_u2_susphy_quirk; snps,dis-del-phy-power-chg-quirk; + snps,dis-tx-ipgap-linecheck-quirk; status = "disabled"; }; };